一种低电平调幅器设计  

Design of the low level AM

作　　者：周治良[1] 程丰[1] 郑丽娜[2] 

机构地区：[1]中国人民解放军第五七一五工厂,洛阳471000 [2]河南科技大学,洛阳471000

出　　处：《电子测量技术》2015年第5期14-18,共5页Electronic Measurement Technology

摘　　要：在通信系统中,振幅调制应用广泛,目前振幅调制分为高电平调幅和低电平调幅。针对低电平调幅几种传统实现方法,虽然设计灵活,原理简单,但都调试复杂。提出一种新的低电平调幅器设计方法。根据非晶金属的磁化特性,阐述了压控电感的工作原理和制作工艺,给出了调幅电路、磁化电感控制电路原理图,并详述了其工作原理。通过试验验证,该型调幅器性能优良稳定,线性度好,灵敏度高,具有良好的创新性和新颖性,开创了一种新型低电平调幅器的设计方向。The AM has a wide applications in communication system. At present it is divided into high level and low level AM. In view of traditional implementation method about low level AM, it has the advantage of design flexibility and principle simplicity, but its debugging is complex. It propose the design method of low level AM. According to the magnetization of amorphous metal, the working principle and fabricate technics of voltage controlled inductor are described. The circuit diagram of AM and magnetization inductor are given, its working principle is introduced. Through experimental verification, the AM has the advantage of excellent performance, good linearity and high sensitivity. It has novel innovation and create a new design direction about AM.

关 键 词：调幅 晶体振荡器 压控电感 磁化 

分 类 号：TP14[自动化与计算机技术—控制理论与控制工程]