Text preview for : Wiltron_360B_ServMan.pdf part of Wiltron 360 Wiltron 360 VNA System Maintenance Manual
Back to : Wiltron_360B_ServMan.part | Home
-
-
MODEL
3608
VECTOR NETWORK ANALYZER SYSTEM MAINTENANCE MANUAL
=====Wiltron=
490 JARVIS DRIVE. MORGAN HILl., CA 9503702009
PiN: lQ411J.<)0116 REVISION: C PRINTED: FEBRUARY 1994 COPYRIGHT 1992 WILTRON CO.
TABLE OF CONTENTS
Chapter 1 - General Information
Provides general information about the S60B Vector Network Analyzer system, which includes a
Jist of related manuals, service information, static handling procedures, and a list of recommended
test equipment. Chapter contents are detailed immediately following the tab.
Chapter 2 - 360B VNA System
Describes overall operation, which includes an overall system block diagram. Chapter contents are detailed immediately following the tab.
Chapter 3 - 360B VNA System Performance Tests
Provides performance tests for the three system confIgUrations based on test set model: 36lXA1362XA, 3630Al36S1A, and 3635E. Chapter contents are detailed immediately following the tab.
Chapter 4 - 360B VNA System Troubleshooting
Provides system troubleshooting tables for isolating problems to the malfunctioning major assemb·
ly. Chapter contents are detailed immediately following the tab.
Chapter 5 - 360B VNA Information
Describes the VNA unit. which includes a block diagram. Also provides remove and replace procedures. Chapter contents are detailed immediately .following the tab.
Chapter 6 - 36XXA Test Sets, General Information
Provides description and remove and replace procedures for the test sets covered in this manual. Chapter contents are detailed immediately following the tab.
Chapter 7 - 361XA1362XA Test Sets Information
Provides an overall description and block diagram of the Model 36lXA1362XA Test Set. along with descriptions of individual PCBs and RF components. Chapter contents are detailed immediately following the tab.
Chapter 8 - 3630Al3631A Test Sets Information
Provides an overall description and block diagram of the Model 3630Al3631A Test Set, along with descriptions of individual PCBs and RF components. Chapter contents are detailed immediately following the tab,
360BMM
i
Table of Contents (Continued)
Chapter 9 - 3635B Test Set Information
Provides an overall description and block diagram of the Model 3635B Test Set, along with descrip tions of individual PCBs and RF components. Chapter contents are detailed immediately following the tab.
Chapter 10 - 360SSXX Signal Source Information
Describes the 360S847 and 360SS69 Signal Sources. Chapter contains full service and trouble shooting information, which includes description, block diagrams, troubleshooting, performance tests, adjustments, and remove and replace procedures. Chapter contents are detailed immediately following the tab.
Appendix A - Model 363XA Test Set Operation
Provides operation information for the 3630A and 3631A Test Sets. Appendix contents are detailed immediately following the tab.
Appendix B - 360ACM Auxiliary Control Module Maintenance Information
Describes the 360 ACM. Appendix contains full service and troubleshooting information, which includes description, block diagrams, troubleshooting, performance tests, adjustments, and remove and replace procedures. Appendix contents are detailed immediately following the tab.
Subject Index
Provides a subject index.
ii
360BMM
-----------------_
....
Chapter 1
General Information
Table of Contents
1-1 1-2 1-3 1-4 1-5 1-6 SCOPE OF MANUAL .. . . . . . . . . . . . . . . . . . . .. 1-3
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . .. 1-3
IDENTIFICATION NUMBER . . . . . . . . . . . . . . . . .. 1-3
RELATED MANUALS . . . . . . . . . . . . . . . . . . . . .. 1-3
SERVICE INFORMATION. . . . . . . . . . . . . . . . . . .. 1-5
RECOMMENDED TEST EQUIPMENT . . . . . . . . . . . . 1-12
.. _- _ .. _--- ... .......... :::: - .... ......... ....
.... ............. ::::=: ..............
... ;: .... :- ...... ':"':: " "': .. .. .. - ........ ....... : ...
...
....
",
::::: ~ :.!:::=::
..................... .....................
..................
.............
....
~~
~.:
Figure 1·1. Model 36GB "'etor Network Analyzer System (Shown installed in Mode136OC1 System Consale
Chapter 1 General Information
1-1
SCOPE OF MANUAL
This manual provides general and service information for the Model 360B Vector Network Analyzer (VNA) system (Figure 1-1). (Through out this manual, the terms 360B VNA and 360B will be used interchan geably to refer to the system.) Manual organization is shown in the nar rative Table of Contents that precedes this chapter. The information in this manual provides for fault isolation to the assembly level ror sys tem instruments. Covered instruments consist of network analyzer, signal (frequency) source, test sets, and 360ACM used with the 3635B mm-wave test set. This chapter provides general information about the 360B VNA sys tem. It also provides replaceable-assembly information and a listing of recommended test equipment for servicing 360B VNA system instru ments. All WILTRON instruments are assigned a unique six-digit ID number, such as "701001." This number is affixed to a decal on the rear panel of each unit. In any correspondence with either WILTRON Customer Ser vice or your AnritsuIWlltron Service Center, please use this number.
1-2
INTRODUCTION
1-3
IDENTIFICATION NUMBER
NOTE The system operating software is keyed to the analyzer identification number. For systems having certain option installed, the operating-system will only load on the serial numbered 360B for which the software is identified.
1-4
RELATED MANUALS
Manuals related to the operation and maintenance of the 360B VNA system are listed in Table 1-1. This table also lists the 360B VNA optional equipment manuals.
360BMM
1-3
RELATED MANUALS
GENERAL
INFORMATION
Table 1·1. List of RC?ktted Mwtw:ds
Title
Model360B Vector Networ1< Analyzer Operating Manual Model 3608 Vector Networ1< Analyzer Getling Started Guide Model :J6OB Vector Networ1< Analyzer GPiB Programming Manual 360BGPIB Quick Reference Guide Description Provides operating information for the 360B VNA.
Part Number
1041 ()'00110
Provides a tutorial for quickly getting started making measurements with the :J6O VNA system. Manual is bound with the 360B OM, but can be ordered separately. Provides programming information for the 3608 GPiB interface.
1041()'00111
10410-00113
Alphabetically list and briefly describes all 360B GPiB commands. Provides references to fuller command descriptions located in 360B GPIB PM. Manual is bound with the 360B GPIB PM, but can be ordered separately. Provides operating instructions and maintenance information for the Models 3660,3651. 3652,3653,and3654 Calibration Kits and !he Models 3666. 3667, 3668, and 3668 Verilication Kits.
10410-00114
Model 36JO( Calibration and Verification Kit Operation and Maintenance Manual
10100-00024
1-4
360BMM
GENERAL INFORMATION
SERVICE
INFORMATION
1·5
SERVICE INFORMATION
Module Exchcmge
Program.
WILTRON Customer Service and the Anrit suIWiltron Service Centers provides an module el< change program that includes the parts and assemblies listed in Table 1-2.
Table 1-2. Exchangeabk Subassemblies, 1 of 6
WILTRON Part Number
Description
360 Vector Network Analyzer
014364·3 014351·3 014366-3 014352·3 034355·3
D34605-3
A 1 LO 1 Phase LOCi< PCB Assembly
A2 LO 2 Phase Lock PCB Assembly
A3 call3rd L.O. PCB Assembly A4 AID Converter PCB Assembly A5 1a MHz Reference PCB Assembly
AS Source Lock PCB Assembly
A7 Synchronous Detector A PCB Assembly AS Synchronous Detector B PCB Assembly A9 Synchronous Detector R PCB Assembly Ala Blanking/Synchronous PCB Assembly
A11 VO VGA Processor PCB Assembly
D14353-4
014353-5
D14353-6
034624-3
037995·3
034520-3
A12 Main 2 Processor PCB Assembly A13 Main 1 Processor PCB Assembly
A 14 Power Supply Control PCB Assembly
D38057-3 034680-3 D36965-3 D37574-3 034656·3
A15 Power Supply Convertor PCB Assembly
A16 Test Set 110 PCB Assembly
A 18 Power Supply Motherboard
D38112
D36993
Front Panel Assembly 360B, includes disk drive Color Display VGA Assembly
360BMM
1-5
SERVICE
GENERAL
INFORMATION
INFORMATION
fuble UI.
Exchangeabk Subassemblies, 2 of6
Description
WILTRON
Part Number
36xxA Series Test Sets
030701-4 034519·3 030701-5 030704-3 034603-3 034760-3 037611·3 034636·3 035558·3 AlT IF Amplifier, Channel B PCB Assembly A2T IF Amplifier. Reference Channel PCB Assembly A3T IF Amplifier, Channel A PCB Assembly MT LO 2 PCB Assembly A5T LO 1 PCB Assembly A5T Power Distribution PCB Assembly, 3635B A6T Digila1lnterface PCB Assembly A7T Altenualor Driver PCB Assembly A27T AmplilierlSwilch Dover PCB Assembly
3600 RF Components, 20 GHz and below
021852 021851 015320-1 B19820-1 020363 C21586 C21587 4412K 034511 017900 AaT Buffer Amplifier Assembly, Channel B, 3610A, 3820A Al0T Buffer Amplifier Assembly. Channel A. 3610A. 3620A A12T Power Amplifier ASsembly A13TTransfer Switch, with cable. 36l0A,3820A A14TIA15T Coupler. 3610A. 3820A A18TIA19T Bias Tee, Female - Female A16TIA19T BiasTae. Male - Female A20TIA21TIA22T Slep Attenuator. 70 dB, 20 GHz A24T Source Lock I Reference Select Assembly A25T RF Splitter
3600 RF Components, 40 GHz and below
017929 AaT Buffer Amplifier Assembly. Channel B. 3611A. 3821A. 3530A AaT Buffer Amplifier Assembly Channel B, 3611A.3821A.363OA AlOT Buffer Amplifier Assembly. Channel A. 3611A, 3821A. 3630A
021854
017928
1-6
360BMM
GENERAL INFORMATION
SERVICE
INFORMATION
Tabu, 1-2. Exchangeable Subassemblies, 3 of6
WlLTRON
Part Number
DI532O-1 819821-1 D15825 C21586 C21587 4612K D34511
Description
A 12T Power Amplifier Assembly A13T Transfer Switch, B19821 with cable, 3611A, 3621A A 14T/A 15T Coupler, 361 lA, 3821A A18TIA19T Bias Tee, Female· Female A16T/AI9T Bias Tee, MaJe· Female A20TIA21T/A22T Step Attenuatar, 70 dB, 40 GHz A24T Source Loci< I Reference Select Assembly 3600 RF Components. 60 GHz
D21856 C21421 D21655 C21420 D21405-1 D21350-1 D20600 D22811
A8T Buffer Amplifier Assembly. Channel B AST Buffer Amplifier Assembly, Channel B Al0T Buner Amplifier Assembly, Channel A Al0T Buffer Amplifier Assembly, Chann el A A I 2T Power Amplifier I Multiplier Assembly, D21405 A13TTransfer Switch, D21350 with cable A14T/A15T Coupler, 60 GHz AI4T/AI5T Coupler 62.5 GHz AlSTIA I 9T Bias Tee, 60 GHz A20T/A21T/A22T Step Attenuator, 70 dB. 50 GHz A24T Source lock / Reference Seled Assembly A25T RF Splitter
w~h
cable
V250
4712V D34511 D21395 D21360 C23358
A28T/A29T SPDT/Splitter
A30T Channel B Tripier Assembly, 60 GHz, Includes 1000-37 Isola!Or, 1040-15 Tripier, D21319 Mux coupler, C21372 Amplifier and C21382 High Pass Filler, This must be replaced as an entire assembly.
360BMM.
-------------------
.. ~ .....-
......
SERVICE
INFORMATION
GENERAL
INFORMATION
Thble 1-2_ Exchangeable Subassemblies, 4 of6
WlLTAON
Part Number
C23361
Description
A30T ChannelS Trii>.r Assembly, 52.5 GHz.lncludes 1000-37 Isolator, 1040-15 Tripier, 021319 Mux coupler, C21372 Amplifier and C21382 High Pass Filter. This must be replaced as an entire assembly.
C23355
A31T Channel A Tripier Assembly, 60 GHz.lcdudes 1000-37
Isolator, 104D-15 Tripier, 021319 Mux coui>er, C21372 Amplifier and C21382 High Pass Filter. ThiS must be replaced as an entire assembly.
C23360
A31T Channel A Tripier Assembly, 62.5 GHz.lncludes 1000-37
Isolator, 1040-15 Tripier, 021319 Mux coui>er, C21372 Amplifler and C21382 High Pass Riter. Thismust be rei>aced as an entire assembly.
3flOO RF CompOnents, 85 GHz
039098-5 C26220 A27T Amptifier/Switch Driver PCB Assembly
A31T Channel A Tripier Assembly, 65 GHz. Includes 1040-17 Tripier,
025224 Mux coupler, C25593 Amplifier and other components. This
must be replaced as ar: entire assembly.
C26221
A30T Channel A Tripier Assembly, 55 GHZ.lncludes 104D-17 Tripier,
025225 Mux coupler, C25593 Amplmer and other components. n,is must be replaced as an entire assembly. A25T RF Splitler A12T Power Amplifier I Multii>i... Assembly Al0T Buller Amplifier Assembly, Channel A AST Buffer Amplifier Assembly. Channel a A14TiA15T Coupler 55 GHz A20T/A2ITiA22T Step Attenualor, 70 dB,55 GHz AI8T/A19T Bias Tee, 65 GHz Cable Assembly, Auxiliary Power Auxiliary Power Connector (rear panel) Auxiliary Power Supply (USA) Auxiliary Power Supply (UK)
Auxiliary Power Supply (Europe)
N026237 026219 026222 026223 N025180 ND26179 N025181 839096' 551-1095' 4D-56· 4D-57' 4D-58'
* These components are not on the module exchange program; however, they may be ordereas standard replacement parts.
1-8
360BMM
GENERAL INFORMATION
SERVICE
INFORMATION
Table 1·2. Exchangeab/eSubassemblies, 50fB
WILTRON
Part Number
Description
36358 Millimeter VNA RF Components
1091-87 C21860 023385 D21925-1
A 11T Power Splitter A20T RF Input Amplifier, 11-20 GHz A21T/A22T LO Amplifier, 8-15 GHz A9T Transfer SWitch AlOT Chan nel A Buffer/Amplifier Assembly A6T Channel B Buner/Amplifier Assembly 360ACM
022441
D20616
D37719-3
831862 831662
A 100 PCB Assembly 15 Vol! PSU Assembly 12 Volt PSU Assembly 360SS Series System Source
D32101-3 N034470 N035919 032105-3 D3471()'11 032113·3
A1 GPIB PCB Assembly
M ALC PCB and Coupler Assembly. 3608841
A4 ALC PCB and Coupler Assembly, 3608869 AS Frequency Instruction PCB Assembly A 10 FM PCB Assembly A13 Power Supply PCB Assembly 360SS RF Components
60-102 C8090-5 013355
Frequency Doub.,r Amplifier. 3608869 Down Converter Assembly, cabled D9157A PIN 8wilch Assembly, 350SS69 DPDT PIN Switch. 8-26.5 GHz PIN Switch Assembly, 3508847 13.25 to 20 GHz Amplifier, 350S869 18 to 26.5 GHz Amplifier, 3608S69
D13611
D18696 ND31356 N019075
360BMM
1-9
SERVICE INFORMATION
GENERAL INFORMATION
Table 1-2. Exchangeable Subassemblies, 6 of6
WILTRON Part Number
N035918 N035919 N035934 ND35935 ND35950 ND35951 ND35958
C20812
Description
2 to 8 GHz Oscillator Assembly, 3605347
2 to
e GHz Oscillator Assembly, 360$589
8 to 12.4 GHz Oscillator Assembly, 3605347
8 to 12.4 GHz Oscillator Assembly, 360SS69
12.4 to 20 GHz Oscillator Assembly, 3505347
12.4 to 18 GHz Oscillator Assembly, 350SS69
1 to 26.5 GHz Oscillator Assembly, 350$$89
Output Conn ector Assembly
e
Static
Handling
Figure 1-2 provides procedures that should be fol lowed when handling static sensitive parts.
CAUTION
WILTRON highly recommends that you use
a grounded wrist strap when handling 360B VNA System PCBs and components. The 360B VNA system contains parts that can be damaged by static electricity.
1-10
360BMM
SERVICE
GENERAL
INFORMATION
INFORMATION
1.
Do not ,ouch exposed contacts on any static sensitive component
2.
Do not slide static sensitive
3.
component across any surtace.
Do not handle static sensitive components in areas where the floor or work surface covering is capable of generating a static charge.
--.
ATTIENTION
L
Dervtoos
_le~" StaUf.; Safe 0"
Rt:ustbhJ Cot\taiMl' Do Not 0tsIr0y
4.
Wear a static-discharge wristband
when working with static sensitive components.
5.
Label all static sensitive devices.
6.
Keep component leads shorted together whenever poSSible.
7.
Handle PCBs only by melr edges. Do 8. nol handle by the edge connectors.
Lltt" handle so.ld state devices by
9.
their bodies - never by their leads.
Transport and store PC8s and other static sensitive devices in static· shiek1ed containers.
10.
ADDITIONAL PRECAUTIONS:
·
· ·
Keep workspaces clean and free of any objects capable of holding or storing a static charge.
Connect soldering tools to an earth ground. Use only spadal anti~stati:c suction orwick~type desoldering tools_
Figure 1·2. Static Handling Procedures
360BMM
1-11
------~
.........
RECOMMENDED TEST EQUIPMENT
GENERAL
INFORMATION
1-6
RECOMMENDED TEST EQUIPMENT
Table 1-3 lists the recommended test equipment for maintaining and servicing the 360B VNAsystem.
Table 1-3. Recommended Thst Equipment (1 of2)
Instrument Spectrum Analyzer, with Diplexer and Extemal Mixers Critical Specilieation
Recommended Manufacturer/Model
Frequency: 0.01 10 60 GHz Resolution: 10Hz
Tektronix, Inc. Model 494P.with External Mixers: WM 490K (1810 26.5 GHz) WM 490A (26.5 to 40 GHz) WM 490U (40 to 60 GHz) WM 490V (501060 GHz) DipJe'er PN: 015-0365-00
Hewlett-Packard Model 4378, with
Oplion 22 (GPI8), and
Power Meter,
with
Power Sensors
Range:-30 to+20dBm (l1'W 10 100 mW) Other: GPIB-conlrollable
Power Sensors: HP 8465A (0.01 to 26.5 GHz) HP 8487A (0.05 to 50 GHz) John Fluke, Inc. Model 884OA, with Option 8640A-09 (True RMS AC)
Digital Multimeter
Resolution: 4-1/2 digits DC Accuracy: 0.002% +2
counts
DC Input Z: 10 MO AC Accuracy: 0.07% + 100
counls (1020kHz)
AC Input Z: 1 MQ Frequency Counter, with External Mixers
Range: 0.01 1060 GHz Input Z: 500 Resolution: 1 Hz Other: Exlemal Time Base
Input
EIP Microwave, Inc. Model 578A, with
External Mixers:
Option 91 (26.5 to 40 GHz) Option 92 (40 to 60 GHz) Option 93 (60 to 90 GHz) Tektronix, Inc. Model 2445
Oscilloscope
I ,
Bandwidth; DC 10 150 MHz Vertical Sensitivity: 2 mV/
division
Hafiz Sensnivity: 50 nsf division
Function
Output Vokage Range:
300 mVlO 10V
Hewlett-Packard Model 3325A
Generator
Functions:
200 Hz Sine Wave 100 Hz Square Wave Local Oscillator (LO) Test Fixture
NlA
WILTRON T1512 (Figure 1-3)
PCB
Exlendercard
N/A
WILTRON Part Number: 030709-3
Figw'e 1-3. WlLTRONT1512 3608 Thst Fixture
1-12
360BMM
- - _ __
..
...
_ ..
-------------
GENERAL INFORMATION
RECOMMENDED
TEST EQUIPMENT
Table 1-8. Recommended 'Thst Equipment (20f2)
Instrument
Test Cables
Critical Specification
NJA
Recommended Manufacturer/Model
WlLTRON Part Number: N034060 WlLTRON Company Model 3550, 3651,3652,3653 (]I 365413554B' (Included with Model 360B VNA System) WILTRON Company 35550, 3655U, 3655V, or 3555W, depending on Model 364XB-X Module baing used. (Included with Model 360B VNA System) WILTRON Company 3670X50'- t and -2 (X · K, A, or V,
Measurement
Calibration Kit
Kit oontains high-precision
opens,shorts,broadband
loads. and sliding load
Measurement
calibration Kit
0-, u., V-, or W-band
waveguide components
(For use with Model 3635B Test Set, only)
Mlcrowave
cable
Frequency: 18,40,60, or 55 GHz. depending on
connector type
depending on test set connector
type)
Assurance
Air Une
Frequency: 60 GHz
WILTRON Company
!
i
Part Number: T1519 (K Connector, female) Tl520 (3.5 mm, female) Tl521 (V Conn, female-50 GHz) Tl542 (V Conn, female-55 GHz)
Frequency: 40 GHz WILTRON Company 29X5()-15 (X · K, A, depending on fest set connector type) WILTRON Company Part Number: SC4417 (60 GHZ) Part Number: SC4732 (55 GHz)
PreciSion
ONset
Termination
Precision
Offset
Frequency: 50 or 65 GHz
Termination
* OperatiOn to 65 GHz with "8" versions 01 these products
360BMM
1-13/1-14
Chapter 2 360B VNA System
Table of Contents
2-1 2·2 2·3
24
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . 2·3 SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . . .. 2·4 SYSTEM COMPONENTS . . . . . . . . . . . . . . . . . . .. 2·4 SYSTEM OPERATION. . . . . . . . . . . . . . . . . . . . .. 2·7
Chapter 2 360B VNA System
2-1
INTRODUCTION
This chapter describes the Model 360B Vector Network Analyzer Sys tem. The description is organized into an overall description, a descrip tion of system components, and a discussion on system operation. Chapters 3 and 4 respectively provide information for verifying perfor mance and troubleshooting the system.
360BMM
2-3
SYSTEM DESCRIPTION
360BVNA
SYSTEM
2-2
SYSTEM DESCRIPTION
The 360B VNA system characterizes a device-under-test (DUT) through the measurement ofits forward and reverse transmission and reflection characteristics as a function of frequency. These charac teristics are referred to as scattering parameters, or S-parameters. There are four S-parameters: S11 = Forward Reflection S21 = Forward Transmission S12 = Reverse Transmission B22 = Reverse Reflection The VNA system mathematically compares the relative magnitude and phase changes between the signal incident to the DUT and the reflected or transmitted signal from the DUT to derive the S-parameters. It then presents the S-parameters graphically on a color display, printer, or plotter.
2-3
SYSTEM COMPONENTS
The 360B VNA system consists of three main components:
o o o
Signal Source TestSet Vector Network Analyzer (VNA)
Figure 2-1 shows the 360B VNA system configuration and illustrates the interconnections between the signal source, test set, and VNA. The following paragraphs contain brief descriptions of each system com ponent. Signal Source The signal source provides the stimulus to the DUT via the test set. The frequency range of the signal source and the test set establish the frequency range of the VNA system. The signal source is controlled and phase-locked by the VNA and provides clean, phase-locked stimulus signals at programmed fre quency points for precise test data. Frequency ac curacy is assured by phase-locking both the signal source and the system local oscillators to the same 10 MHz reference time base. Frequency resolution is 100kHz. Two system signal sources are available: Model 3608847 (10 MHz to 20 GHz) and Model 360SS69 (10 MHz to 40 GHz). Frequency coverage to 60 GHz is available by using the Model 360SS69 Signal Source with a Model 3612A, 3622A, or 3631A Test Set that includes a frequency tripler. In addition, the WILTRON Series 66XXB Sweep Generators and Series 67XXB Swept Frequency Synthesizers can be used as system signal sources.
2-4
360BMM
360BVNA
SYSTEM
SYSTEM
COMPONENTS
SOURCE CONTROL SYSTEM BUS
VECTOR NETWORK ANALYZER
o LOCK
OUTPUT SIGNAL
EXTFM
GPIB
TEST SET
SEMI-RIGID
COAXIAL CABLE
PHASE LOCK INPUT
-, SIGNAL SOURCE
RFOUTP\1T
Fil{u;re 2-1. 360B VNA System InteTC01W!ctions
360BMM
2-5
- - - - - - -......-
SYSTEM
COMPONENTS
The Test Set
360BVNA
SYSTEM
The test set contains the measurement components for the 360B VNA system. The test set, under direct control of the VNA, perfonns the following:
o Stimulus signal routing from the signal source
to the DUT through one of the test ports (Port lor Port 2).
o Signal separation and down conversion ofthe
incident, reflected, and transmitted signals at Ports 1 and 2 into four IF signals ('Thst A, Refer ence A, Test B, and Reference B).
o Amplification of the IF signals.
Test sets are available that allow vector measure ments for different applications. The test set types include active and passive device test sets with auto matic signal reversing, frequency conversion test sets, and a millimeter-wave test set. Coaxial test sets include multiple models that cover frequency ranges from 10 MHz to 60 GHz. The millimeter wave test set provides frequency coverage from 33 to 110 GHz in four wavegnide bands (Q, U, V. and W).
VNA
The VNAis the system controller, signal processor, and display unit fur all versions ofthe 360B VNA system. Its front panel controls provide menu selec tions for test functions, test parameters, measure ment enhancements, and frequencies. The VNA sends frequency, power, and sweep information to the signal source over the dedicated source control system (GPIB) bus. It controls the test set functions through a dedicated digital bus via the CONTROL and SIGNAL cable assemblies. The VNA analyzes the IF signals from the test set for phase and mag nitude data. It displays the results of this analysis (measurement data) as well as test parameters and system status on a large color display. The data presented on the display can be output to a plotter or printer or routed to the rear panel (external) GPIB or Centronics interface.
2-6
360BMM
360BVNA
SYSTEM
OPERATION
SYSTEM
2-4
SYSTEM OPERATION
During a typical measurement, the microwave signal source, under direct control of the VNA, outputs an RF signal to the test set to pro vide stimulus to the DUT (Figure 2-2). The system signal source is phase-locked with the VNNs internal 10 MHz crystal oscillator. An ex ternal10 MHz frequency standard may be substituted for the system's internal 10 MHz oscillator for maximum attainable frequency accuracy.
In the test set, the stimulus signal is sent to the DUT through one of the test set's test ports (Port! or Port 2). When there is any impedance mismatch between the test port and the DUT input port, some of the signal incident at the DUT input port is reflected back to the test set and some travels into the DUT. In the case of two port DUTs (that is, those having an input and output port) the portion of the stimulus sig nal that travels through the DUT goes to the second test port for meas urement.
In addition to stimulus signal routing from the signal source to the DUT, the test set also serves as the front end of the VNA receiver. Within the test set are signal separation and down conversion devices that separate and down convert the incident, reflected, and trans mitted signals at Port 1 and Port 2 into four distinct intermediate (IF) signals. The incident signals are fed to Reference Channels A and B and the reflected or transmitted signals are fed to Test Channels A and B. Heterodyne frequency conversion is used to improve upon the in herent limitations of broadband diode detectors. It also provides sig nificant improvement in dynamic range, harmonic rejection, and sen sitivity. Each of the four IF signals carries embedded magnitude and phase in formation relative to a reference signal. Down conversion of the signals does not affect the magnitude and phase relationship, only the frequen cy is changed. The IF signals go to selection switches in the test set that control (1) which signals are sent to the test set's IF amplifiers and then on to the synchronous detectors of the VNA, and (2) which ref erence signal will be used for phase-locking the system signal source. The VNA source lock circuitry compares the selected reference signal's frequency and phase to that of a signal derived from the 10 MHz crys tal oscillator in the VNA. If the system is not properly phase-locked, a correction voltage is generated that drives the FM 0 LOCK input to the system signal source, forcing it to source lock to the correct frequency and phase.
360BMM
2-7
SYSTEM OPERATION
360BVNA
SYSTEM
Additional signal processing is implemented within the VNA. The mag nitude and phase infonnation embedded on the analog IF signals is first detected, then converted to digital data. The VNA processors, con trolled by embedded firmware coupled with system software, manipu late this digital data. Short·term system errors are normalized and digital compensation is generated and applied. The resultant S parameter data characterizing the DDT is then presented on the VNA color display, output to a printer or plotter, or routed to the rear panel (external) GPIB interface.
2-8
360BMM
(lBVNA
.--TEST SeT
-l
I
t
A
....---J'-360SS
I
I
,
,_ .. _ _ _ TA
PO'glLL ,
TT l
II-r:n.~===1=~'-~';-;/-;':-';...:.::jj -. TA,o.
_
c ____ ,
DUAL ' ,SAMPlERS
1
DUT
l I
'I
I'
Al3T
f-J I R"
'ffi
I ""1!" I
":T'
1 I ' , - - - -' lV
' ~ I
I
"L
r.
J
f - ,.--~-:: AA.:rAA ,;;;;:-, II.T'f[A6~1=--'~.- -:;,; -, L -.- AS~.J~ I L ~ J~.i I '7- ~ =' cr:: -;' - --"1 I',,"~i:~ L, I~.J ~D ,~CAL I L I=--~ A9~
'TA
! · , -.
MO~~rES
BUFFER
MIXER
,11241 -
-
.... - ' "
~i l ~~'j'~"';;"
FWD
:r --
---
11OMHzTIDET'H
, · ----
t-. - ..
ffi
RB :
',
FWD
1
LI-!.
..... ,
_A2!J
1 ,-
ffi
1.-,,-.-._,
SIGNAL SOURCE pR!:...F....!-_..J
I
1
I
I I I
FM
INPUT
_y_._ I :I~~~~I I A ~AMP I _.
POWER :
, , A12T
, _ 'I!
<;, :>
~
,," .. ~. - .A1!J
'
I
Lr
- po
I
" MHz
ho
I .1 '----t-I----~-W·
I
I
r
!
SYNC I >.:- ~ET, I__r-_ ,-~
! ...-'
SOU"
A6 -----".
1
I I
1
j
:1
1:" 11
k
Y1 '"
DlA:
~r=====~~~~t===========~==~=======dI==~I~Mi~-~
:k
1
I
~ PHASE I
LQ(
LOI
j-
~o~11
DlA
, ,
I
I
lAST 'po.
I J
,
XI l 1,'
_
~~ ~.~
I
~~
I
I
;A4T
,~ J
110 MHz 'J "
~-=--=
'
RI:FERI 10M
'-----o----..\.-_ _
L _ _-l_...lJ·r .
~
TI:5T SET INTERFACE
I
~
-
AST._
i.:..J 111 ~- . I 11I-:T 'I
TESrJET }
· Al6
OSCILL
)BMM
36QB VNA SYS1
BLOCKDIAGR
;; IL-PL_OTT_ER_....JI
- -- -- 1
I
I
FWD
rA7 -
L1~10-M-Hz->--Il:
r--I ,. ISYNc. 11>1 DET.
1
l-+ FILTER
BW
roo
~
-II'
S.W.
SAMPLE i l AND HOLD
I-..
~~- ~~.- , I
~_A2.!J
~~~. -i-~-~,_
I
l'OMHz~~ ;:R~ ~lE
->0
rSY~~
r+ ~ I ITil
SAMPLE AND HOLD
=:e E1
~~
HOLD
:- hti SAr~6E I I
1
I
IMI-:AND8B,T--' II ND CONVERTER
,.4~.it.
,
j
1
I
J
,I
i
I
I
~
I ~
,
SYNC. DET
ho MHz L
I
roo
l ,r"" ...
B.W.
~
L-
--
ttl
FILTEA
.....
!. lm _~~-=--=H+iL . ~~6E ~ I ,Ir, MICROP~~:SSOA
, · IA13 I ,.. I ....
!ril AN~~ :1
I J~ MICROP~eSSOR I
r-
I
I
I
1 ... 1
T
~..
I...
1
MAIN"
.... 1
"'1
~
rf~~~
MODLLE
3.S'
_ - _-_
I I '-::l- -, r SOURCE l--fc 10 MHz -I-----t:---I,+J LOCK r r LM.: ---+.- t=====~==~~PIHA5~~E!LOC~KJ~Ti===~
LO.2 I
-r
rI
I
I
....1..
-=-- -; If----.! ..
-,
,------, PROGRAM
MATH COPROCESSOR
8087
'--=11
AU
,lrA2-'
... '
· : :
J
' 1
r::--:< 10 MHz
-,
iA_~: . r L.O."
~ _
~ 10 MHz
1 - I'
-
=
I I
=
=
8087
d
J
.1
::::
MATH COPROCESSOR
PHASELOCK
f-+
I
I
MICROP~FOA
.' ..
MAlN'2
-I _ ""I'
L__'~===~
~
~
I
GPl8
I
1
r::;-,
I FRONT PANEL II I
, PRINTER
I
""
I
r -;:::.....:::;- I JI~-B+I - fCAL --, L.-----+-.. f-+I osc ; ... I -1:& LM. - ---:: l::--- --::;- J I I J 10MHZ . I
1 ....
1
1
_
""
I
II ·. I
L
-
rAl'-'--'~~-=-'fAi4~-1
II
Al91A20
EXT 10 MHz ~
~
II .... 1 P.S. I ... "-ICONTROL II I"
9"VG/\
COLOR MONITOR
1
-
'0 MHz
""I ~itn~g~
AS -
1
EXT
INTERFACE
~E~ :1I..... I :"'1
I
I
Ij TEST SET
II
va
"""l
~
~
I
~ '"v'· I ~ r.. -r:lAN~GI:::-1 I ...
10MHz I SYNC. III I
6~~Hz
~
'-- "'=..-., ___ '
S'JPPLY
II GRAPHICS
CONTROL PROCESSOR, A1S NEcmo
II
I
I ~~M~.3~.~
I
1
-~~-I
I
Mfl
-~ : : - ' -
I
; 1.16 _ _
J
PHASE LOCK
FM
IA10
__,
,"
JI
CON~EfuER j 1lAl! - -
I
.-------~~
P.S. CONTROL
L
, COMPCSITE VIDEO OUT
.J
EXTERNAL RGB OUT
Figure 2-2, 360B VNA System BlDck Diagram
2-!
Chapter 3
360B VNA System
Performance Tests and
Adjustments
Table of Contents
3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13
,~
INTRODUCTION . . . . . , . . , , . . . . , . . . _ , . . . . . 3-3
TEST EQUIPMENT . . . . . . , . . . . . . . . . . . . _ . .. 3-3
PERFORMANCE TESTS AND ADJUSTMENTS
- GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
PERFORMANCE TESTS, MODELS 361XA1362XA . . . . . . 3-5
SAMPLER EFFICIENCY TEST, MODELS 361XA1362XA .. 3-6
HIGH LEVEL NOISE TEST, MODELS 361XA1362XA . . . . 3-11
SYSTEM DYNAMIC RANGE TEST,
MODELS 361XA1362XA . . . . . . . . . . . . . . . . . . . . . 3-14
EFFECTIVE DIRECTMTYTEST,
MODELS 361XA/362XA . . . . . . . . . . . . . . . . . . . . . 3-18
EFFECTIVE SOURCE MATCH TEST,
MODELS 361XA1362XA . . . . . . . . . . . . . . . . . . . . . 3-23
ADJUSTMENTS, MODELS 361XA1362XA . . . . . . . . . . . 3-27
A5T AND A4T PCB ADJUSTMENTS,
MODELS 361XA1362XA . . . . . . . . . . . . . . . . . . . . . 3-28
PERFORMANCE TESTS, MODELS 3630Al3631A . . . . . . 3-33
FULL-BA.'..-n PERFORMANCE TEST,
MODELS 3630Al3631A " . . . . . . . . . . . . . . . . . . . 3-34
Table of Contents (Continued)
3-14 3-15 3-16 3-17 3-18 3-19 3-20 3-21 3·22 3-23 SET SOL"RCE POWER LEVEL, MODELS 3630Al3631A . . . . . . . . . . . . . . . . . . . . . 3-38 COMPRESSION LEVEL TEST, MODELS 3630Al3631A . . . 3-41 NOISE FLOOR! RECEIVER DYNAMIC RANGE TEST, MODELS 3630Al3631A . . . . . . . . . . . , . . . . . . . . . 3-44 MAGNITUDE TRACKING TEST, MODELS 3630Al3631A . . . . . . . . . . . . . . . . . . . . . 3-47 ADJUSTMENTS, MODELS 3630Al3631A . . . . . . . . . . . 3-49 PERFORMANCE TESTS, MODELS 3635B!364XB MODULES . . . . . . . . . . . . . . 3-51 NON-RATIOED POWER LEVEL TEST MODELS 3635B!364X . . . . . . . . . . . . . . . . . . . . . . 3-53 IDGH LEVEL NOISE TEST, MODELS 3635B!364X . . . . · 3-57 SYSTEM DYNAMIC RANGE TEST, MODELS 3635B!364XB . . . . . . . . . . . . . . . . . . . . . 3-61 SOURCE MATCH! DIRECTIVITY TEST, MODELS 3635B!364XB . . . . . . . . . . . . . . . . . . . . . 3-64
Chapter 3
360B VNA System Performance Tests and Adjustments
8-1 INTRODUCTION 8-2 TEST EQUIPMENT 8-8 PERFORMANCE TESTS
AND ADJUSTMENTS GENERAL
This chapter provides perfonnance tests and adjustments for the 360B analyzer unit and test sets. Perfonnance tests and adjustments for the 360XX Signal Source are provided in Chapter 10.
Recommended test equipment and manufacturer is listed in Chapter 1, Table 1-3. Equipment needed for individual model adjustments is listed with the model adjustments. Perfonnance tests are provided for the 361XA1362XA, 3630N3631A, and 3635B. Adjustments are provided for the 361XA1362XA and 3630Al3631A. The perfonnance tests and adjustment procedures are located behind tabs for the applicable test set model.
360BMM
3-313-4
Chapter 3 360B VNA System Performance Tests and Adjustments
3·1 INTRODUCTION 3·2 TEST EQUIPMENT 3·3 PERFORMANCE TESTS
AND ADJUSTMENTS GENERAL
This chapter provides performance tests and lldjustments for the 360B analyzer unit and test sets. Performance tests and adjustments for the 360XX Signal Source are provided in Chapter 10. Recommended test equipment and manufacturer is listed in Chapter 1, Table 1-3. Equipment needed for individual model adjustments is listed with the model adjustments. Performance tests are provided for the 36lXA!362XA, 3630Al363lA, and 3635B. Adjustments are provided for the 36lXA!362XA and 3630Al363lA. The performance tests and adjustment procedures are lo cated behind tabs for the applicable test set model. Anritsu VNA Performance Verification Software, part number 2300 237, supports 360 and 360B systems with 361xA and 362xA models. This software is used to verifY that the 360B system is making accu rate, traceable S-parameter measurements. Complete instructions are found in the User's Guide, which is shipped with the software and is automatically installed on the controller when the software is installed.
360BMM
3-5/3-6
Changed: May 1999
PERFORMANCE TESTS AND ADJUSTMENTS
PERFORMANCE TESTS,
MODELS 361XAI362XA
3-4
PERFORMANCE TESTS, MODELS 361XA1362XA
This tab section contains five perfonnance tests that can be used to verify Model 360B VNA system operation. Setup instructions and per fonnance procedures are included for each test. Test results can be compared with the specified limits that are provided for each test. These tests do not establish measurement traceability; such verifica tion requires using an appropriate WILTRON verification kit. Success ful completion ofthese procedures indicates that your 360B VNA sys tem is operating properly and is capable of making accurate measurements.
Required Equipment
The following equipment is required to perform the operation verification tests:
o Calibration kit, with Option 1: Sliding Termi o Flexible microwave cable (through line). o Precision air line for up-to 40 GHz measure o Precision offset for up-to 40 GHz measure
ments. ments. nation.
o Assurance air line for 60 and 65 GHz measure
ments.
31:08 $YS1E>,l
CH$t;fnE
Mea 'INA
CQIlTROllll':
o 20 dB offset termination for 60 and 65 GHz
measurements.
\
Initial System Setup
Perform the following steps before starting the per formance tests. Step 1. Verify that the 360B VNA system has been installed per Chapter 2-Installation of the Model 360B VNA Operation Man ual (PIN 10410-00110). Step 2. Install the 360B VNA system diskette into the disk drive of the network ana lyzer. Step 3. Apply power to the frequency signal source then to the network analyzer. Loading of the system software takes ap proximately 1 minute (at which time the system is ready to make measurements).
DIS>( i H DR:YE
NOTE Allow the system to warm up for at least 60 minutes to ensure opera tion to performance specifications.
360BMM
3-5
- - - _ . - - - _ ...
-
SAMPLER EFFICIENCY TEST, MODELS 361XA1362XA
PERFORMANCE TESTS AND
AD/USlMENTS
3-5 SAMPLER EFFICIENCY
TEST, MODELS 361XA!382XA
This test verifies that each individual receiver channel in the Model 361XA1362XA Coaxial 'Thst Set operates properly. Measurement calibra tion of the system is not required for this test. This test requires that you press a specified front panel keys and make choices from the displayed menu(s). The keys used in this test are shown below.
CHANNELS
MEASUREMENT
NA)UI,ICW
Cl
MINIIIIUW
0
DISPLAY
ENHANCEMENT
Key
Menu Choice START: 500 MHz STOP: High End Frequency FOUR CHANNELS
'ThstSetup
Setup 360B VNA as described below.
Step 1. Connect Test Ports 1 and 2 together (be low.)
SETUP MENU CHANNEL MENU GRAPH TYPE AUTO SCALE
LOG MAGNITUDE (All channels) ON (All channels)
Channell: REF A SPARAMS : Channel 2: TST A Channel 3: TST B Channel 4: REF B (See Figure 3-1 or 3-2)
Step 2. Set up the network analyzer as shown in table at left.
3-6
360BMM
PERFORMANCE TESTS AND ADJUSTMENTS
SAMPLER EFFICIENCY TEST,
MODELS 361XAI362XA
To independently measure the output of the individual test set channels, you must redefine the selected parameter for each display channel. You may redefine the parameters manually, as shown below for Channell, or automatically, as shown in Figure 3-2. The parameters are redefined as:.
, - = Test Set Channell
at
REF A
bl ,- = Teet Set Channel 2 TST A
~ = Test Set Channel 3 TST B
Step 1 Press S PARAMS key
Step 2. Make menu choices as shown iO the following flow diagram.
SELECT
PARAMETER
PARAMETER DEFINITION S11iUSER2 PARAMETER
31 I 1
~ = Test Set Channel 4 REF B
SELECT
NUMERATOR
bl
b2
82t al I 1
SII
31
a2
---------S12
1 (UNIn') PRESS TO SELECT
PHASELOGK
---------S22
---------LABEL:
-REF_A~'
---------REDEFINE SELECTED PARAMETER PRESS
TO SELECT
·
CHANGE NUMERATOR CHANGE DENOMINATOR CHANGE PHASE LOCK CHANGE LABEL PRESS TO SELECT OR SWITCH
SELECT
DENOMINATOR
bl
....
SEUECTNAME
ABCDEFGHIJKLM NOPQRSTUVWXYZ
0123456789-1"
DEL CLEAR DONE TURN KNOB TO INDICATE
CHARACTER
OR FUNCTION
PRESS
TO SELECT
NUMBERS MAY
ALSO BE
SELECTED
USING KEYPAD
..
. b2
al
a2
1 (UNITY) PRESS TO SELECT
Figure 3-1. lI£tkfining &l~d Para7Tl£ter Manually for Sampler Ef'lkiency 'IIlsting
360BMM
3-7
SAMPLER EFFICIENCY TEST, MODELS 361XA1362XA
PERFO~CETESTSAND
ADJUSTMENTS
To independently measure the output of the individual test set channels. you must redefine the selected parameter for each display channel. You may redefine the parameters automatically. as shown below. or manually. as shown in Figure 3-1. The parameters are redefined as:.
al "1 : Test Set Channel 1 REF A
b1 "1 :
Test Set Channel 2 TST A
~:
Test Set Channel 3 TST B
~ = Test Set Channel 4 REF B
Step 1. Press OPTION MENU key.
Step 2. Make menu choices as shown in the following flow diagram.
Step 3. Press SETUP MENU key; set START frequency to 500 MHz.
TESTS ERROR REPORT PROM AND RAM CHECKS DIAGNOSTICS OPTIONS SWEEP OPTION REAR PANEL OUTPUT . DIAGNOSTICS MULTIPLEXER CONTROL MULTIPLE SOURCE CONTROL RECEIVER MODE PRESS TO SELECT TROUBLE SHOOTING (WILTRON SERVICE USE ONLy) FRONT PANEL KEYBOARD CRT
i CHECK OPTIONS
"-_ _ _ _ _ _ _ _
~
__+1
TESTS PRESS TO SELECT
· INSTALLED NON-RA1l0ED PARAMETERS
r
~
PRESS TO SELECT
Figure 8-2. Redefining Selected Parameter Auromaticaliy for Sampler Efficiency Testing
3-8
360BMM
PERFORMANCE TESTS AND ADJUSTMENTS
That Procedure
SAMPLER EFFICIENCY TEST,
MODELS 361XA1362XA.
Perform test as described below. Step 1. Step 2. Observe sweep indicator (top left) and al low at least one complete sweep to occur. VerifY that the maximum-value to mini mum-value amplitude slope (Figure 3-3) meets the specifications shown below.
Reference Channel..
Test Channels
DATA DISPLAY AREA
MENU
AREA
_Indicator Ma_
!
Frequency
I
........................
200Hz 400Hz 500Hz 800Hz 650Hz
<14dB <25 dB <40 dB <40 dB <45 dB
<15dB <2adB
<55 dB <55 dB
<65 dB
Step 3.
VerifY that the minimum amplitude meets the specifIcations shovm below.
REFB TSTA TSTB
Test Set
REF A
361DA 3620A 3611A 3621 A 3612A 3622A 3613A
-40
-38
-40
-38
-42 -43
!
-40
-34
-42 -41 -53 -55 -53 -55 -53 -55
-42 -41 -53 -55 -53 -55
-53
-52 -55 -78 -78 -78 -78 -78 -78
-52 -47 -75 -76 -75 -76
/
/
/
\ \
3623A 3615A 3625A
-75
-76
/
-55
MARKERS/LIMITS \
NOTE Use the MARKER MENU and READOUT MARKER keys (bottom left) and menus to obtaln precise frequency and amplitude values.
360BMM
3-9
SAMPLER EFFICIENCY TEST, MODELS 361XA1362XA
PERFORMANCE TESTS AND
ADJUSTMENTS
CWllrA ·· )
30. IHTlIIiU.1 ANAL.YZER
MODEL: DEVICE: START: S TOP: 5 TEP : 0.5000 40.0000 0.2370 GHz GHz GHz
DATE: OPERATOR: GATE START: GATE STOP: GATE: WIN 0 0 W: ERROR CDRR:NOHE AVERAGING: 1 PTS IF BNDWDTH:REDUCEO
REF A
-
LOGH
TST
-A
LOGH 5.000dB/ eH 4 - REF_8 REF. PLANE 0.0000 mm MARKER 1 0.9740 GHz
- 8 ·077 dB
t>-17.000d8
4.000dB/ t>-2!L00OdB
m
~
~
..., l 7\,
v
t>
V
,
0.5000 T5T 8
Y\n.
I
I
"
~
~
~
'~
~
t>MARKER TO MARKER TO
2 40.0000
MAX MIN
I
-26.937
6Hz dB
-
GHz LOGH
40.0000
O.SOOO REF B
-
GHz LOGH
40.0000 4.000dB/
t>-24.000dB
5.000dB/ 1>-17.000dB
:-1 [P
...,
l~
I
v
t>
V\.
'
.
y~...-.
"""" ~"-,
t>
~.
V'¥'I.M
'~Il
~
...
~
I
,
i
0.5000
Figure 3-3.
GHz
40.0000
0.5000
6Hz
40.0000
Sampler Efficiency Test Waveforms
3-10
360BA1M
PERFORMANCE TESTS AND ADJUSTMENTS
HIGH LEVEL NOISE TEST,
MODELS 361XA1362XA
8-6 HIGH LEVEL NOISE
TEST; MODELS
361XAI362XA
The following test verifies that the high-level noise in the 360B VNA will not significantly affect the accuracy of subsequent measurements. High-level noise is the random noise that exists in the 360B VNA Sys tem. Because it is non-systematic, it cannot be accurately predicted or measured. Thus, it cannot be removed using conventional error-correc tion techniques. Calibration of the system is not required for this test. This test requires that you press a specified front panel key and make choices from the displayed menu(s). The keys used in this test are high lighted below.
Key SETUP MENU
Menu Choice
START: 40 MHz STOP: High-end frequency
CHANNELS
MEASUREMENT
CHANNEL. DUAL CHANNELS 1-3 MENU GRAPH TYPE SET SCALE
r-'
LOG MAGNITUDE (Both channels) RESOLUTION: 0.010 dB/DIV REF VALUE: 0.0 dB (Both channels) Channell - S12 Channel 3 - S21 AVERAGING 128 MEAS. PER POINT
DISPLAY
ENHANCEMENT
~
~
REOUCEDD
SPARAMS AVG! SMOOTH MENU
I~PACEI
:~!
ITRACE ' oi ,
: $i.«XITH:
-
"'RMALD
AVERAGE· ON DATA POINTS VIDEO IFBW LIMITS NORMAL
ThstSetup
Setup 360B VNA as described in table at left.
REDUCED
LIMIT 1 ON 0.020 dB (3610Al20A, and 3611A121A). or. 0.040 dB (3612A122A 3613A123A.and 3615A125A) LIMIT 2 ON -0.020 dB (3610Al2OA and 3611A121A) or. -0.040 dB (3612A122A 3613A123A. and 3615A125A)
360BMM
3-11
HIGH LEVEL NOISE TEST, MODELS 361XA1362XA
Test Procedure
PERFORMANCE TESTS AND
ADJUSTMENTS
Perform test as described below.
Step 1.
Connect Test Port 1 and Test Port 2 (top left) together.
Step 2. Press CH 1 key. StepS. Press TRACE MEMORY key. Step 4. Choose VIEW DATA from menu and press ENTER key_ StepS. While observing s weep indicator (middle left), allow at least two complete sweeps to occur.
MENU
AREA
DATA DISPLAY AREA
Sweep Indicator Martw
...
Step 6. Choose STORE DATA TO MEMORY from menu and press ENTER key. Step 7. Choose VIEW DATA ... MEMORY from menu and press ENTER key. Step 8. While observing sweep indicator (middle left), allow at least two complete sweeps to occur. Step 9. Verify that the peak-to-peak High Level Noise falls within the area between the two limit lines (Figure 3-4). Step 10. Press CH 3 key. Step 11. Repeat steps 4 thru 9 for channel 3_ Step 12. Press S PARAMS key; set CH 1 for S11 and CH 3 for S22. Step 13. Connect a Short to Test Port 1 and an Open to Test Port 2 (left). Step 14. Repeat steps 2 thru 9.
._._J ..__ .
3-12
360BMM
-------------------
PERFORMANCE TESTS AND ADJUSTMENTS
mGH LEVEL NOISE TEST,
MODELS 361XA1362XA
(ULTROO
350 .ET_Olk ·· AlTZEI
MODEL: DEVICE: START: S TOP : STEP,
0.0400 40.0000 0.2400 GHz GHz
DATE; OPERATOR: GATE START: GATE STOP: GATE: WINDOW: ERROR CDRR,NONE AVERAGING, 128 PTS IF BNDWDTH,REDUCED
GHz
S12
REVERSE TRANSMISSION I>REFrO.OODdB O.OlOdB/DIV TRACE MEMORY
FUNCTIONS
LOG MAG.
i
I
,
VIEW
DATA
:
VIEW MEMORY VIEW OATA
AND MEMDRY
I>VIEW DATA MEMORY
I>
V
r'
,
A
A
-v
.h
!-'
~V
V
V
·"
. ..t\
V
,
I
0.0400
S 21
GHz FORI/ARD TRANSMISSION I>REF-O.OOOdB
40.0000
SELECT
TRACE MAT"
STORE DATA
TO MEMORY
01 S K
lOG MAG.
o · 0 1 0 d BID I V
I
FUNCTIONS
..
MEMORY DATA REF. PLANE 0.0000 mm PRESS TO SELECT
0.0400
Figure 11-4.
6Hz
High Level Noise Test Waveform
40.0000
360BMM
3-13
SYSTEM DYNAMIC RANGE TEST, MODELS 361XA1362XA
PERFORMANCE TESTS AND
ADJUSTMENTS
3-7 SYSTEM DYNAMIC
RANGE TEST, MODELS
361XAI362XA
This test verifies that the system dynamic range meets specifications. System dynamic range is the ratio of power incident on Port 2 in a through line connection to the noise floor at Port 2 (forward measure ments only). The system must he calibrated and the error correction applied for this test. This test requires that you press a specified front panel key and make choices from the displayed menu(s). The keys used in this test are high lighted below.
CHANNELS
MEASUREMENT
co:
, cw,
!
~
g[53
OONAiN
DEVICi: '
10!
DISPLAY
~ ~
,---,
I I
! '
ENHANCEMENT
AStuCe;o 0
..lNum", C :: '
! 1 ~
ooe co
ooe DCO co c!o coe 1:1 10
000
o~o
:!:
, HiACE i
,MEI,IORyl
~
0001
I'
"
:
'
TestSemp
,
Perform the test setup procedures, as described be low.
I I I I
D "'''
Step 1CALIBRATION
D · "'"
Press BEG IN CAL key (left). Using the menu prompts, perform a Full 12-Term SlIDING LOAD calibration over the full system operating range. (If necessary, refer to the 360B OM, Chapter 8, for detailed procedures.) NOTE Use 1024 averages and minimum IF bandwidth during the Isolation step in the calibration. These settings will be called out in sub sequent procedures.
u_
.....
,
" "i
,
Step 2.
-""""" c:; .,."
IlEFt.!t:'rION
,... AI!OU!IIC't
~
APPLY
CAL
0"'''
3-14
360BMM
-
-~'---------
PERFO~CETESTS~
ADJUSTMENTS
SYSTEM DYNAMIC RANGE TEST,
MODELS 361XAi362XA
Step 3. Before pressing the EN TER key at the ISOLATION DEVICES menu prompt, press the AVGISMOOTH MENU key and change averaging to 1024 MEAS. PER POINT. Step 4. When the isolation measurement is com plete, press the AVGISMOOTH MENU key and change averaging to S2 MEAS. PER POINT; continue the calibration. Step 5. Once the calibration process has fmished, verify that the APPLY CAL key indicator is lit. Step 6. Set up the network analyzer as shown in the table at top left.
Key SETUP MENU CHANNEL MENU GRAPH TYPE SET SCALE
Menu Choice START: 40 MHz STOP: High-end fre· quency SINGLE CHANNEL LOG MAGNITUDE
RESOLUTION: 10.0 dB/DIV REF VALUE: -50.0 dB REFLINE: TO P
521 1024 MEAS. PER POINT
S· PARAMS AVG/ SMOOTH MENU AVERAGE VIDEO IF BW OPTION MENU
Test
Procedure
Perform the test procedure as described below. Step 1. Connect Broadband Terminations to Test Port 1 and Test Port 2 of the test set
ON MINIMUM SWEEP OPTIONS then POINTS DRAWN IN C.W.: 100
Step 2. While observing the sweep indicator, al· low two (forward and reverse directions) complete sweeps to occur, then press the HOLD key. StepS. Step 4. Press the MARKER MENU key (bottom left), and select MARKER 1 to be ON. Press the SETUP MENU key, select the C.W.MODE to be ON, and set the fre quency to 40 MHz. Press the READOUT MARKER key. Position the cursor to MARKER TO MAX, press the ENTER key, and record the value (Figure 3-5). Position the cursor to MARKER TO MIN. press the ENTER key. and record the value. Substract value in step 7 from that in step 6. To reduce measurement uncer tainty, ensure that the difference is greater than 15 dB.
Step 5. Step 6.
/
/
/
\
\
Step 7.
MARKERSILIMITS \
LIMITS
Step 8.
360BMM
3-15
SYSTEM DYNAMIC RANGE TEST, MODELS 361XA1362XA
PERFORMANCE TESTS AND
ADJUS'IMENTS
(WILTROW)
lie IETWORK AIALfZER
MODEL: DEYICE:
217001 SYS_OYN
DATE:
RNGE OPERATOR:
GATE START, GATE STOP, GATE: WIIIDOW,
01JUL1992 G_GESSAMAN ERROR CORR:12 - TERM AVERAGING, 1024 PTS IF BIIOWDTH,MINIMUM
0.0400 6Hz START: STOP: 40.0000
GHz STEP: XXX.XXXX
GHz
521
FORWARD TRANSMISSIOII
!>REF=-50.000d8
CII MODE 10.000dS/OIY
CH 3 - S21 REF. PLANE 0.0000 mm MARKER 1 POINT 59 -86.743 dB !>MARKER TO MAX MARKER TO MIll
LOG MAG. !>
~
V
ViI'
'\
/'
J
1'-1
1/
, VV
VVvy y
vy
11
A
II
'\j
!
40.0000 GHz Cli
Figure 3-5. Dynamic Range Test Waveform
3-16
360BMM
PERFORMANCE TESTS AND ADJUSTMENTS
SYSTEM DYNAMIC RANGE TEST,
MODELS 361XAJ362XA
Step 9. Substract 6 dB from the value measured in step 6. This is the system dynamic range. Verify that its value compares fa· vorably with the Table 3·1 value for O.04GHz. Step 10. Repeat steps 4 through 9 for remaining frequencies in Table 3-1.
Table 3·1. Dynamic Range Chacteristics
Test set Model
Frequenc:y (GHzJ
0.04 1.0 20.0 0.04 1.0 20.0 40.0 0.04 1.0 20.0 40.0 50.0 60.0 0.04 1.0 20.0 40.0 60.0 65.0 0.04 1.0 20.0 0.04 1.0 20.0 40.0 0.04 1.0 20.0 40,0 50,0 60.0 0.04 1.0 20.0 40.0 60.0 65.0
System Dynamic Range (dB)
i
351M
Reversing Test Set
-91 -108 -101
!
3611A Reversing Test set 3612A 3615A to50GHz Reversing
Test Set
-102
-96 -85
-96
-85
I
I
!
:
3613A
Reversing Test Set
-101 -91 -83 -75 -70 -101 -91 -83 -70
--94
i
i
3620A Active Device
Test Set
-110 -102
3621 A
Active Device
Tes! Set
-83 -105 -97
-85 -85
3622A 3625A to 50 GHz Active Device
Test Set
-101 -83 -79
i
-70
-85
-85
3623A ACfive Device
Test set
-101 -83 -79 -85 -90
360BMM
3-17
EFFECTIVE DIRECTIVITY TEST, MODELS 361XAI362XA
PERFORMANCE TESTS AND
ADJUSTMENTS
3-8 EFFECTlVE DIRECTlVnY
TEST, MODELS 361XAI362XA
This test verifies that the effective directivity ofthe system meets specifications. The system must be calibrated and the error correction must be applied for this test to be valid.
This test requires that you press a specified front panel keys and make choices from the displayed menu(s). The keys used in this test are shown below.
CHANNELS
MEASUREMENT __ 0
'0RMAl.
0
I POINTS OATA '
I
~ b:
HOL::.l,
MINIMUM 0
g
-
DCHAIN
~'v~'
10
...~
DISPLAY
ENHANCEMENT
r;;;;;;;:l NO'' ' '- 0 §oL--J MlNIMIJM!J
Key
Menu ChQioe
SETUP
MENU
START: 40 MHz STOP: High-end frequency
Test Setup
CHANNEL
SINGLE CHANNEL Channel 1 MENU
GRAPH
TYPE
SET
SCALE
LOG MAGNITUDE
Perform the test setup procedures, as described be low.
Step 1. Perform a full 12-term calibration, or use the calibration performed in paragraph 3 7. Step 2.
RESOLUTION: 1.0 dBJDiv REF VALUE: -15.0 dB (or value of termination offset)
REFERENCE LINE: TOP 311
Ensure that the APPLY CAL key indicator is on.
Step 3. Set up the network analyzer as shown in the table at left
S
PARAMS
3-18
360BMM
PERFO~CETESTS~
ADJUSTMENTS
Test Procedure
EFFECTIVE DlRECTIVIlY TEST,
MODELS 361XA1362XA
Perform the test procedure as described below.
Step 1.
Connect an Air Line and an Offset to Test Port 1 (top left). While observing sweep indicator (middle left), allow at least one complete sweep to
Step 2.
PORT 1
PO/ilT 2
occur.
AlA LINE
Step 3.
Press MARKER MENU key (bottom left) and select MARKER 1, MARKER 2, and MARKER 3, to be ON. Using rotary knob, position markers 1 and 3 to adjacent peaks of the worst-case ripple (one with the greatest amplitude); position marker 2 to the bottom of the trough (Figure 3·6). Using the MARKER MENU and READOUT MARKER key menus, record the absolute value ofmarkers 1 and 3; subtract one from the other, halve the difference and add it to the value of the marker at the lowest peak, This is the average value of the two peaks. Record the value ofmarker 2. Substract the value recorded in step 5 from that recorded in step 6 (Example: 0.24 dB). This is the "REF ± X Peak to Peak Ripple dB" value that you will use next in the Microwave Measurement Chart (Table 3-3, page 3-22). Turn to page 3-22 and find the "REF ± X Peak to Peak Ripple dB" value closest to your measured value (0.2454 for the ex ample in step 7). Move your fmger across to the "X dB Be low Reference" column. Add the value from this column (Example: 37) to the >REF = value that appears on the 360B measurement screen, This is the effective directivity value for PO RT 1 (52 db for the example: 37 + 15 = 52).
Step 4.
1·
DATA DISPlAY AREA
Sweep Indicator Yaricer
AREA
.,11
I
Step 5.
'''..',..,.:t.. "...,....,
Step 6.
Step 7.
/ /
/
/
MARKERS/LIMITS
\
\
\
\
Step 8.
I
LIMITS
I
Step 9.
360BMM
3-19
EFFECTIVE DIRECTIVITY TEST, MODELS 361XA1362XA
PERFORMANCE TESTS AND
ADJUSTMENTS
GT'iiiD
'50 I£TVORk ·· ALlIER
MODEL: DEVICE: START: STOP, STEP, 0.0400 6Hz 40.0000 GHz 0.2400 GHz
DATE: OPERATOR: GATE START, GATE STOP: GATE: 1111100\1, ERROR CORR:12 - TERM AVERAGING, 1 PTS IF BIIDIIOTH:REDUCEO
S I 1 FORIIARD
REFLECTION t>REF=-14.970d8 l.DOOd8/DIV
CH3-S11 REF. PlAIIE 0.0000 mil t>MARKER 2 34.6000 GHz -15.004 dB MARKER TO MAl( MARKER TO MIN
,
!
lOll
MAG.
I
i
I
i
I
I
i
I
I
i
I
I
t> h
fJ
'fu; ~ i f
,
i
"AI
iV\j
I
'{'I 1rJ\ \1'1 ,vM vv
·
r
I
133.8800 6Hz -14.378 dB
3 35.8000 6Hz
-14.105
dB
I
,
,
I
I
GHz
I
I
J
J
i
40.0000
0.0400
Figure 3-6. Effective Directivity Test Waveform
3·20
360BMM
------
PERFORMANCE TESTS AND ADJUSTMENTS
EFFECTIVE DIRECTIVITY TEST,
MODELS 361XAI362XA
Table 3-2_
Test Port Cha.cteristics
Frequency
(OHz)
Connector
Directivity
(dB)
Step 10. Verify that the directivity value meets the specification in Table 3-2 for each band. If it does not, repeat steps 4 through 9 for each band. NOTE The procedure above measures the characteristics of Test Port 1 only. To measure the characteristics of Test Port 2, a seeond calibration must be performed with the test ca ble connected to Test Port 1 instead of Test Port 2. (This allows meas urements at the Test Port 2 connee tor that are not influenced by the quality of the test port cable. Step 11. To measure the characteristics of Test Port 2, perform steps 12 through 14. Step 12. Press the S PARAMS key and change to S22. Step 13.
Move the Air Line and Offset to Test Port 2. Step 14.
Repeat steps 4 through 10 for the S22 pa rameter.
GPC-7
0.04 1.0 18.0 0.04 1.0 20.0 26.5 0.04 1.0 20.0 40.0 0.04 1.0 20.0 40.0 SO.O 60.0 65.0
>52 >52 >52 >44
>44 >44 >44
3.5mm
K
>42 >42 >42 >38 >40 >40 >40 >36 >34
>34
V
>32
360BMM
3-21
MICROWAVE MEASUREMENT CHART
PERFORMANCE TESTS AND
ADJUSTMENTS
Table 8-8. Microwave Measurement Chart
Con~
tables fOr retl.l/T1 los&, reflection ooeffldenl, and SWR with fatuia' values lor intera:tion Of a $mai! pnaa x with a la-gephase (unity reference) expte6S00 in oB related to
referer.ce.
~ to
Utllly ReM..."ce
''''"
5._
4.4194 17.3910 8,7242
Rl8n«ltio:xl
A_
"""""""
0.8913
,
...
1
........
,
x
dB_
ItEr +X dB 5.5350
REF-X dB
AIF=)I f>eek to Pea Ripple dB
0.79'3
0.7079 0.6310
3.009:5
2.614$
......
0.5623 0..5012
0.4467 0.390>
·
5
2 3
,.1.9250
2.3.229 2.0999
0.....
0.3162 02818
·
9
6 7
·
·
9 7
2 3 4 5
5.07",
· .6495
4.2489
3~755
-19,2715 -13.7365 -10.6007
....6585
24,806S
18.8145 15,3402 12.9073 11.0528 9.5699
-7.ina
-&..0412 -5,.1405 ··.M096
3.5287 3,2075
8.3480
7-""'" &4439 5.68$4
10
'0
11
2.9106 2.6376 2.3866
2,1567
-aa063
-3.301. -2.8755 -2.5126 -2.2013 -1.9331 -1.7007 -1,4988
-1.3227 -'L1687
1._
1.'$101
1.6109 1,5769 1.4935
025'2 0.2239
0,1995 rU1'rS 0.1585 0,1413 0,1259 0,1122
"
5.0322
4.4500 3,9SS1 3.5133
3.1224
12
13 '4 15 ,1
1.329C 1.2880
,. ,.
"
13
14
"
18
1.7547
1..4.216 1.2779
1.1476
'.9465
'.
,1
IS
'"""'"
2.nre
24103
2.19$6 1,9574
1.74~
,!1 +X)
~
.zS28
1.2222
0.1000
0.0891
0.0794 0.0708 0,0631
20
21 22
20
"
O.am
0.7416
'.0299 0.9237
-1.0337 -0.915'
-0.8108 -0.7189 -0.6378
1.1957
I
PHASOR INTERACTION
TEIl:tIOI'tl.CRW
t
\
I
/
'-
'~lQ
1,1126 1,1524 1.1347 1.1192 1.1055 1,0935 ',0829 1,0736 1.0653
1,0~
0._
0,1)501 OJ)447
23 24 25
26
"'El']
21
0.0300 0,03S5
0,0316 0.0282 0.0251 0,0224 0,0200 0,0176 0,0158 0,0141 0,0126 0.0112 O,Q1OO
2. 30
2.
31 32
22 23 2. 25 2. 27 28 29 30 3'
32
"
1.5524
1.3828 '.2319
0._
0.594'
C.5314 0.4752
~--
-0.566,
-0.5027 -C.4466
1.0975
0.9719 0.8114
0.4248
0.3796
-0.3969
-C.:!S29
0.77J35
0.6919 0,6166 0.5495
0.3391 0.J02B
0.211)4
-0.3138 -C.Zl91
-0.2483 -02210 -0.1967 -0.1751
'L0515 1.0458 1,0407 1.03e2 1,0322 1,0287 1,0255
024'. 0.2155
Q 1923
0.,_
OA365 0.3600 !l.3467 0.3000
"
34
35 56
37
"
34
35 3. 37
0.1716 0.1531 0.1366 0.1218 0.1087
-0. '558 -0. '38$
-0.1236 -0.1100
38
3.
0.2753 0.2454 0.2167
1.0Z!7
3.
40 41 42 43
3.
40 41 42 43
44
'.02C2
1.0180 1.0150
t.(jl43
0.llge9 OJl864
-0.:)980 -0.0873
-0.0.778 -0,0593 -0.0617 -0.0550 -0.0490
0,1949
0,1737
0._
0.0079 0,0071 0.0063 0,0056
o.orn
0,06!i7 0.06:3
0,1548
0,1380 0.123:1 0.1096 0,0971
1.0127 1,0113 1.0101 1.0000 1.00SJ 1.0071
OJ''''''
0.0045 0.00<1)
0.0035 0.0032 0.0028 0.0025 0,0022
...
44 45
45 47
..
49 50
47
1.00<\'l
1.0057 1.0050
1..0045
1.0040 1.0036 1.0032
"
49 50 51
...
56
OJ'''''
0."'"'
0.04340.:)387 0,034S
-O.043S
-0,<)389 -0,0346 -0.0309 -0,0275
-0.0245 -0.0218 -0.0195 -0.0173 -110155 -0,0138 -C,0123
O.OS7:
o,om
0.0692
0.0616 0.0549
0,(49)
0.Q3()8
0.0274 0.0244 0.0218 0,01940,01 i'3 0.01540.0138 0.0123 0.0109 0.000l
52
53
54
52 53
54 55 5. 51 59
60
0..0436
0.0389
0..0347 0.0309
0.0275
A"'""
0.0018 0.0016 0.0014 0.0013 0.0011 0.00'0
55 51 5.
'-"fJ2f!
'"
0.0245
0,0219
1._
1.0020
1,0025
->:i,OHIS
...(1,0093 -0,0087
59
60
0,0'95
0,0174
0._
3-22
360BMM
PERFORMANCE TESTS AND ADJUSTMENTS
EFFECTIVE SOURCE MATCH TEST,
MODELS 361XA1362XA
8-9 EFFECTIVE SOURCE
MATCH TEST; MODELS 361XA1362XA
This test verifies that the effective source match ofthe system meets specifications. The system must be calibrated and the error correction must be applied for tbese tests. This test requires that you press a specified front panel keys and make choices from the displayed menu(s). The keys used in this test are shown below.
CHANNELS
MEASUREMENT
MAXIMUM
~L~I
0
OATA: POINTS ;
M!NIMUh4 0
DISPLAY
I I : .
ENHANCEMENT
10
!
~
T~CE' : MEMOR'Y:
i
~
I
AIIGi
'
!sMXltHi
MENJ I
'0- ~AVERAG~ .
.~-
,
Key
Menu Choice
SETUP MENU
START: 40 MHz STOP: 20 GHz (3610Af20A) 40 GHz (3611 Af21 A) 50 GHz (3615A125A) 50 GHz (3612Af22A) 65 GHz (3613Af23A) SINGLE CHANNEL LOG MAGNITUDE
7estSetup
Perform the test setup procedures, as described below. Step 1. Perform a full 12-term calibration, or use the calibration performed in para graph 3-7. Ensure that the APPLY CAL key indicator is on. Set up the network analyzer as shown in the table at left.
CHANNEL MENU GRAPH TYPE
SET
SCALE S-PARAM
Step 2. Step 3.
RESOLUTION: 0.02 dBIDIV REF VALUE:
OdBm
S11
360BMM
3-23
EFFECTIVE SOURCE MATCH TEST, MODELS 361XAJ362XA
PERFORMANCE TESTS AND ADJUSlMENTS
Test
Procedure
PORT ~
Perform the test procedure as described below. Step 1. Step 2. Connect an Air Line and a Short to
PORT 1 of the test set (left).
_AIRUNE
While observing sweep indicator (middle left), allow at least one complete sweep to occur. Press MARKER MENU key (bottom left), and select MARKER 1, MARKER 2, and MARKER 3, to be ON. Using rotary knob, position markers 1 and 3 to adjacent peaks of the ripple with the greatest negative trough; position marker 2 to the bottom of the trough (Fig ure 3-7). Using the MARKER MENU and READOUT MARKER key menus, record the absolute value of markers 1 and 3; subtract one from the other, halve the difference and add it to the value of the marker at tbe lowest peak. This is the average value of the two peaks.
Step 3.
Step 4.
OATA DISPLAY AREA
MENU
AREA
Step 5.
Sweep kJdicatot Mal'ker
..i .......
Step 6. Step 7.
Record the marker 2 value.
Substract the value recorded in step 5 from that recorded in step 6. This is the "REF ± X Peak to Peak Ripple dB" value that you will use next in the Microwave Measurement Chart (Table 3-3, page 3 22.).
/
/
/
\ \ \
\
Step 8.
/
MARKERS/LIMITS
Turn to page 3-22 and find the "REF ± X Peak to Peak Ripple dB" value closest to your measured value.
Move your finger across to the "X dB Be low Reference" column. Add the value from this column to the >REF = value that appears on the 360B measurement screen. This is the effective source rru:Jich value for PORT 1.
~
i:~~~NU . :
""'"
.~.;·.:i I li.~; ·
D'MITSl \
,
Step 9.
3-24
360BMM
PERFORMANCE TESTS AND ADJUSTMENTS
EFFECTIVE SOURCE MATCH TEST,
MODELS 361XAI362XA
@EillJ
360 M£TWORk
AIALYZ£X
MODEL: DEVICE: START: STOP:
STEP:
DATE: OPERATOR: 0.(41)1) 40.001)0 0.2400 GHz GHz GHz GATE START: GATE STOP: GATE: WINDOW: ERROR CORR:12 - TERM AVERAGING: 1 PTS IF BNDWOTH:REDUCED
S22 lOG
REVERSE MAG.
REFLECTION I>REF·-0.280dB
I I
,
CH 4 - 522 REF. PLANE 0.0000 mm 0.1)90dB/DIV I>MARKER 1
32.681)0 6Hz
-0.255 dB
I
MARKER MARKER TO MAl( TO MIN
i
i
1\ \-.
i
~A
,
i
I
i
233.8800 GHz -0.525 dB 334.8400 6Hz -0.283 dB
V\
I>
~ \/\
I"
1\
Ii
[]
3
I
!
!
Vi~
I
V
'\
~,
,
0.0400
6Hz
40.0000
Figu"" 3-7. Effective SOU"". Match Test Waveform
360BMM
3·25
EFFECTIVE SOURCE MATCH TEST, MODELS 361XAI362XA
PERFORMANCE TESTS AND
ADJUSTMENTS
Table 3·4. Sourc£ Match Specifications
Connector Frequency
(GHz)
Source Match
(dB)
Step 10. Verify that the source match meets the specification in Table 3·4 for each band. If it does not, perform steps 4 through 9 for each band.
GPO-7
0.04 1.0 18.0 004 1.0 20.0 26.5 0.04 1.0 20.0 40.0
>44 >44 >42 >40 >40 >38 >34 >40 >40 >38
3.5mm
!
K
:
>33
>38 >38 >36 >32 >28 >28 >26
NOTE The procedure above measures the characteristics ofTest Port 1 only. To measure the characteristics of Test Port 2, a second calibration must be performed with the test ca ble connected to Test Port 1 instead of Test Port 2. (This allows meas urements at the Test Port 2 connec tor that are not influenced by the quality of the test port cable.
Step 11. To measure the characteristics of Test Port 2, perform steps 12 through 14. Step 12. Press the S PARAMS key and change to 822. Step 13. Move the Air Line and Short to Test Port 2. Step 14. Repeat steps 4 through 10 for the S22 pa rameter.
V
:
i
I
0.04 1.0 20.0 40.0 50.0 60.0 65.0
3-26
360BMM
PERFORMANCE TESTS AND ADJUSTMENTS
ADJUSTMENTS,
MODELS 361XAi362XA
8-10
ADJUSTMENTS. MODELS 361XA1362XA
The only adjustments that can be performed in the field are to the AST LO 1 PCB and the A4T LO 2 PCB. A detailed procedure for adjusting these two PCBs is provided in paragraph 3-11.
Required Equipment
The following equipment is required to perform the AST PCB and A4T PCB adjustments: 360B Test Fixture PCB Extender o Coaxial Adapter Cables o Digital Multimeter
o o
Initial System Setup
Perform the following steps before starting the performance tests. Step 1. Verify that the 360B VNA system has been installed per Chapter 2-Installation of the Model 360B VNA Operation Man ual (PIN 10410-00110). Step 2. Install the 360B VNA system diskette into the disk drive of the network ana lyzer. Step 3. Apply power to the frequency signal source then to the network analyzer. Loading ofthe system software tskes ap proximately 1 minute (at which time the system is ready to make measurements).
~lIOB
VNA
CONTROt V'III""
lAee~
01S1CEHE
JRIVE
NOTE Allow the system to warm up for at least 60 minutes to ensure opera tion to performance specifications.
360BMM
3-27
~---
~~~~-
~-
ADJUSTMENTS, MODELS 361XA1362XA
PERFORMANCE TESTS AND
ADJUSTMENTS
8-11 A5TANDA4TPCB
ADJUSTMENTS, MODELS 361XAl362XA
This paragraph provides a detailed procedure for verifying and adjust ing the A5T PCB and A4T PCBs.
Initial setup
SIGNAL
From rear of console or cabinet, connect the T1512 Test Fixture in series with the SIG NAL connectors on the VNA and test set (top left). To determine whether or not the A5T and A4T PCBs are operating properly, perform the following steps. Step 1. Set the rotary knob on the T1512 to 01 (middle left). Step 2. Press OPTION MENU key on VNA. Step 3. Select DIAGNOSTICS, then TROU· BLESHOOTlNG, then LOI veo when the applicable menu appears. Step 4. Check that waveform displayed on VNA is between the two limit lines (below). Hit is, the A5T PCB is adjusted properly.
ILIIfUUTT
Verification
lUI.
I
lI!.l)lttU/DlY
:
I
I
!
i
,. ... 611
S1'rc~~
I.r' lt~
I
!
, >1.81
,'to
I.e
co.
l.OJ
I
I
,
:
I
i
teo
· OC
LO ·
I
10lltt
i
,
i
i
""",, '"ll"'"
I
ur UPI.IT
FILTER IUPOUES
FUll
!
'"',
:
uj#"~
I
I
.,U'PASS
I.' ,
Ulf
i
!
i
i
!
I
I
I
!
LO' Fu.f!,,_e
0.357. Sth
I
HAI"nue
1
i
Step 5. Step 6.
Select LO 1 DAC on displayed VNA menu. Set the rotary knob on the T1512 to D/A 1 (bottom left).
3-28
...
360BMM
------_ _
PERFORMANCE TESTS AND ADJUSTMENTS
ADJUSTMENTS,
MODELS