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1.引言在雷达和通信系统中,经常使用倍频级来提高信号的频率和增大带宽,尤其是在那些比最终需要更窄的带宽情况下产生信号时,使用倍频级就很方便和必要。对很多这样的系统来说,重要的问题是要求倍频器不能在幅度和相位上引入失真。因为倍频器本来就是一个非线
1. Introduction In radar and communications systems, frequency multipliers are often used to increase the frequency of signals and to increase bandwidth, especially when signals are generated with narrower bandwidth than is ultimately needed, and it is convenient to use frequency multipliers necessary. An important issue for many such systems is the requirement that the frequency multiplier be unable to introduce distortion in amplitude and phase. Because multiplier is always a non-linear