一种电控可调双工器的研究与设计  

The Study and Design of an Active Switch Tunable Duplexer

作　　者：王清芬[1] 马延爽[1] 王烨[2] 

机构地区：[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]西安邮电大学电子工程学院,陕西西安710121

出　　处：《无线电工程》2016年第9期69-72,共4页Radio Engineering

基　　金：国家科技重大专项基金资助项目(2012ZX03004-003)

摘　　要：针对通信系统对射频前端双工器高可靠工作、高通道选择性的要求,基于双工器的组成原理,提出了一种电控可调双工器的解决方案。利用商业上成熟的电控开关选择频率,环形器+固定滤波器组的形式组成双工器,达到全频段"无缝"覆盖。固定滤波器利用"耦合带宽法"进行设计,达到多个不同频段的固定滤波器共用一套设计数据,可靠性好,模块化程度高。根据工程实践,给出一个六通道设计实例,应用效果良好。Aiming at the high-reliability and high-selectivity requirement for RF front-end duplexer,based on the composition principle of duplexer,the solving schemes are brought forward to active switch duplexer.Commercial relay switches are used to select the working frequency.The duplexer is composed of the circulator and the filters,thus seamless coverage is achieved in the whole frequency band.Fixed filters are designed by the coupled bandwidth in order to use a set of data for all filter implementation,with the advantages of high-reliability and modularization.In the end,an example is given,with good application effect.

关 键 词：可调双工器 电控开关 固定滤波器 耦合带宽法 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]