Product Overview - Agilent Technologies U9391C Operating And Service Manual

1 Introduction

Product Overview

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The U9391C/F comb generator was designed as a phase
reference standard for the Agilent PNA- X nonlinear vector
network analyzer (NVNA). It was developed to provide
precision phase calibration, traceable to the National Institute
of Standards and Technology (NIST).
NVNA component characterization software converts a 4- port
PNA- X with option 510 into an innovative, high- performance,
non- linear network analyzer which uses U9391C/F comb
generators as precision phase calibration standards. Comb
generators generate frequency harmonics at integer multiples of
an RF input signal.
Generally, comb generators available in the open market today
are made with SRD diodes, U9391C/F comb generators are
based on Agilent InP MMIC technology to ensure superior phase
stability of the combs.
Figure 1-1 U9391C Comb Generator
Agilent U9391C/F Comb Generator Operating and Service Manual