增强型单边带调制器的设计与实现  

Design and Implementation of an Improved Single Sideband Modulator

作　　者：张宁[1] 赵秉寰[1] 

机构地区：[1]南京电子技术研究所,南京210013

出　　处：《现代雷达》2004年第6期54-56,共3页Modern Radar

摘　　要：介绍了一种增强型单边带调制器 ,普通单边带调制器可使无用镜像边带抑制 2 5dB左右 ,而增强型单边带调制器进一步应用了I/Q正交网络原理 ,将两只普通单边带调制器组合应用 ,使无用镜像边带抑制度提高到约 3 5dB。An improved single sideband modulator is introduced in this paper. Conventional single sideband modulator can achieve 25 dB or so undesired image sideband rejection. the improved single sideband modulator uses the principle of the I/Q quadrature network, combines two conventional single sideband modulators, and obtains a single sideband modulator achieving 35 dB or so undesired image sideband rejection.

关 键 词：单边带调制器 I/Q正交网络 镜像抑制 

分 类 号：TN76[电子电信—电路与系统]