晶体三极管混频原理分析

Analysis on Frequency Conversion Principle of Transistor

变频是现代通信和无线电电子线路中一种很重要的技术。分析了变频的基本原理和设计变频器的有关注意问题 ;从三极管输入回路和输出回路的信号入手 ,讨论了超外差式收音机常用的变频电路的工作原理。

Frequency conversion is an important part in modern electronic communication connection technology. Taking frequency conversion of semiconductor transistor as an example, the basic principles and some problems related are introduced in the article, integrating emitter-injected frequency conversion circuit of transistor, which is often used in superheterodyne to discuss about it.