变频损耗是指混频二极管中的输入射频信号功率与输出的中频信号功率之比。混频二极管在频率变换过程中，变频损耗越小，则为了输出同样的中频功率所要求的输入射频功率就越小，接收机的灵敏度就越高。
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最后给出了八毫米波段半衡混频器的变频损耗和噪声温度的测量结果。
It can be used for measuring the conversion loss and no- ise temperature of all kinds of the single or balanced mixers, subharmo…
讨论了一种利用噪声测量的方法来确定毫米波段混频器的变频损耗和噪声温度的一个实例。
An example for measuring the conversion loss and noise temperature of mixers in millimeter wave band by using the noise measurement method is discussed in this paper.
混频器的变频损耗和噪声温度的测量可以用改变中频部分的噪声温度使接收机的系统噪声温度变化来加以确定。
The conversion loss and noise temperature of mixers is determined by changing the IF noise temperature so as to change the noise temperature of the receiver system.
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