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AUTOMATED VECTOR NETWORK ANALYSIS AT MILLIMETER-W AVE FREQUENCIES JEFF CAUFFIELD Network Measurements Division 1400 Fountain Grove Parkway Santa Rosa, Ca. 95401 RF ~ Microwave Measurement Symposium and Exhibition rlin- HEWLETT 1 -.:~ PACKARD www.HPARCHIVE.com AUTOMATED VECTOR NETWORK ANALYSIS AT MILLIMETER-WAVE FREQUENCIES This paper describes both the hardware and software techniques used to extend the measurement capabilities of the HP 8510 network analyzer to cover the 26.5 to 60 GHz waveguide bands using available hardware. System operation, methods of calibration, calibration standards, and other factors affecting system performance will be discussed. Measurement results, including group delay and time domain, will be shown for a variety of devices. V/" Author: Jeff Cauffield, R&D Engineer, HP Network Measurements Division, Santa Rosa, CA. BS Engineering Physics (1977) and Master of Engineering (1978), Cornell University. with HP since 1978, contributed to the design of the HP 8510A Network Analyzer. Currently involved with the extension of the HP 8510 to millimeter-wave frequencies. 2 www.HPARCHIVE.com AUTOMATED VECTOR NETWORK ANALYSIS AT MILLIMETER-W AVE FREQUENCIES 3651 Hardware and software techniques used to extend the measurement capabilities of the HP 85l0A Network Analyzer to cover OUTLINE OF TOPICS the 26.5 to 60 GHz waveguide bands using available hardware will be described. Calibration standards and techniques I. DESCRIPTION OF SYSTEM will be discussed and results demonstrated. Factors affecting system II. CALIBRATION performance are explained. Finally, measurement results on typical devices III. SYSTEM PERFORMANCE will be shown, including group delay and time domain. IV. TYPICAL MEASUREMENTS 3652 I. DESCRIPTION OF SYSTEM 3653 3 www.HPARCHIVE.com Some key features of the system include: a dynamic range of 80 to 100 dB FEATURES depending on averaging, data acquisition rate, and accuracy similar to a