基于线性时变理论，对有源cmos混频器的噪声特性进行系统的分析。
Noise characteristics of active CMOS mixers were systematically analyzed based on linear time-varying theory.
本论文的研究工作主要分三部分，即移相器、混频器和有源电感三种射频器件的研究。
The thesis is mainly divided into three parts, the RF devices of phase shifters, mixers and active inductors.
有源器件的线性度是随着电流或功率的增加而增加的，即这样一个概念：放大器级的电流越大并且混频器的本 振功率越大，那么线性度就越高。
The linearity of active stages grows with increasing current or power, i. e. The more current available for amplifier stages and for LO power for mixers, the higher the linearity of the concept.
有源器件的线性度是随着电流或功率的增加而增加的，即这样一个概念：放大器级的电流越大并且混频器的本 振功率越大，那么线性度就越高。
The linearity of active stages grows with increasing current or power, i. e. The more current available for amplifier stages and for LO power for mixers, the higher the linearity of the concept.
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