无线电工程2015，Vol.45Issue(10)：71-73,3.DOI:10.3969/j.issn.1003-3106.2015.10.19
宽带正交调制器设计与实现
Design and Implementation of Broadband Quadrature Modulator
张晓峰 1张朋浩 2侯永彬1
作者信息
- 1. 中国电子科技集团公司第五十四研究所, 河北 石家庄050081
- 2. 中国人民解放军66008部队, 天津300250
- 折叠
摘要
Abstract
This paper introduces the operating principle and traditional design methods of broadband quadrature modulator.In the broadband satellite communication system,the orthogonality deviation will influence significantly the transmission quality of modulation signals.In order to solve this problem,by using such technical methods as impedance matching,differential signal transmission,and in-terface level power control,this paper puts forward the optimization design scheme for peripheral circuit of passive nonlinearity devices. As a result,the EMV value of modulation signal is increased more than 7%,the performance index of broadband quadrature modulator is improve significantly,and the application range of broadband quadrature modulator on local oscillator power and baseband signal power is extended.关键词
宽带/正交调制/卫星通信Key words
broadband/quadrature modulation/satellite communication分类
信息技术与安全科学引用本文复制引用
张晓峰,张朋浩,侯永彬..宽带正交调制器设计与实现[J].无线电工程,2015,45(10):71-73,3.
