我们研制了一种宽带(100～300MHz)晶体三极管混频器。它既有晶体三极管混频器的变频增益特性,又接近于二极管混频器的线性动态范围,因而较好地解决了变频增益与线性动态范围的矛盾。但是,若利用“变频跨导理论”解释这些特性,会遇到许多困难;为此,试用“变频导纳——线性放大”变频模式,较容易地分析了晶体三极管混频器的测试曲线和数据,从而证明了“模式”分析与实际测试基本吻合。 We have developed a broadband (100 ~ 300MHz) transistor transistor mixer. It not only has the frequency conversion gain characteristic of the crystal transistor mixer, but also approaches the linear dynamic range of the diode mixer, so it solves the contradiction between the conversion gain and the linear dynamic range. However, many difficulties will be encountered when using the “Transconductance Transconductance Theory” to explain these characteristics. For this reason, it is easier to analyze the test curves of a transistor and a Data, which proves that the “model” analysis is basically consistent with the actual test.