中图分类号：TN711.3 文献标识码：A 文章编号：1672-4984（2007）04-0040-04
Flexible application of network analyzer for measurement of frequency translating devices
ZHANG Na， LI Yuan， JIN Bao-long
（Shanghai Institute of Microwave Equipments，Shanghai 201802，China）
Abstract: Network analyzers provide a method for measurement of frequency translating devices and these methods are more accurate and can save more time. According the principles of scalar network analyzer and vector network analyzer the authors introduced methods to measure conversion loss of frequency translating devices using scalar network analyzer and methods to measure conversion loss and phase using vector network analyzer. They concluded the advantages and disadvantages of them and proposed proper situations for every method. They also gave a quarter mixers as an example and provided measurements for amplitude unbalance and phase unbalance. Simple and accurate measurements were also mentioned as when local oscillator of mixers covers the same frequency range as RF.
Key words: Frequency translating device； Scalar network analyzer； Vector network analyzer； Characteristics of amplitude frequency； Characteristics of phase frequency