Agilent Network analyzer evaluation of RF amplifier using Keysight B2961A 62A flyer 5991-1857EN [2] free download

File name Network analyzer evaluation of RF amplifier using Keysight B2961A 62A flyer 5991-1857EN [2].pdf

Network analyzer evaluation of RF amplifier using Agilent B2961A/62A Agilent B2961A/B2962A 6.5 Digit Low Noise Power Source The Agilent B2961A/62A provides precise DC voltage or current for RF amplifier S-parameter measurements RF device Evaluation Using the Agilent B2961A/62A as a precise bias source To determine RF device performance, design and test engineers generally measure electrical The B2961A/62A's voltage source mode can be used to bias amplifiers. The applied bias cur characteristics such as S-parameters, frequency bandwidth, distortion, etc. rent will be the difference between the source and device voltages divided by the value of the Analyzers (network analyzers, spectrum analyzers, etc.) are commonly used to perform these mea- external bias resistor used. surements. Since most RF devices do not have an on-chip bias circuit, in addition to an analyzer a In situations where characteristics over temperature or multiple bias current values need to be voltage or current source is usually required to power and bias the device (in conjunction with a observed, it is more convenient to use the B2961A/62A's current source mode as opposed to bias resistor). This document outlines how to perform MMIC RF amplifier S-parameter measure- its voltage source mode since the device voltage will vary depending on both temperature and ments using the Agilent B2961A as the DC bias source. bias current The Agilent B2961A/62A's internal feedback mechanisms enable it to source precise and stable voltages and currents at their specified setting values despite varying load conditions. In addi Advantages of the B2961A/62A Low Noise Power Source tion, users can easily switch between voltage and current sourcing without changing any cable connections. A revolutionary power supply for precision low-noise voltage and current sourcing Superior 6.5 digit 100 nV/10 fA resolution Wide 210 V/3 A (10.5 A pulse) bipolar range Benefits