Vector Calibration Image

mmWave Mixer Measurements with a Low Frequency VNA

May 17, 2022
Is it possible to measure and characterize a mmWave mixer using a VNA operating at much lower frequencies? The Vector Mixer Calibration process utilized demonstrates how the conversion loss of a 35 GHz mixer is measured with a 6.5 GHz VNA.

The reader will learn how to set up a Vector Mixer Calibration test and understand the requirements for the reference mixer to produce valid measurements. It will be made clear how a mmWave measurement may be performed with a much lower frequency VNA. The need for an image filter is also explained.        

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