可重构微波滤波器研究现状及发展趋势  

Recent Research and Trends in the Design of Reconfigurable Filters

作　　者：李双 李胜先[1] 史曼 LI Shuang;LI Shengxian;SHI Man(China Academy of Space Technology(Xi’an),Xi’an 710100,China)

机构地区：[1]中国空间技术研究院西安分院,陕西西安710100

出　　处：《无线电工程》2023年第6期1390-1402,共13页Radio Engineering

基　　金：国家部委基金资助项目。

摘　　要：可重构滤波器是指在固定频率滤波器上加载调谐器件以实现滤波器中心频率、带宽等电性能灵活可重构的滤波器。基于可重构滤波器的射频前端能够灵活切换通信频段和带宽,显著提高频谱利用效率和抗干扰能力。综述了近年来可重构滤波器的研究进展,按照变容二极管、PIN二极管、微机电系统(Micro Electro Mechanjcal System,MEMS)器件、液晶材料、机械机构以及铁氧体器件的顺序进行梳理总结,同时对比了不同类型可重构滤波器的优缺点,总结了可重构滤波器可能的发展趋势。Tunable devices can be loaded on fixed frequency filters to reconfigure the center frequency and bandwidth of microwave filters.The communication frequency band and bandwidth can be changed using the RF front-end based on reconfigurable filters,which also significantly increases spectrum efficiency and anti-interference capability.Recent research on reconfigurable filters based on varactor diodes,PIN diodes,MEMS devices,liquid crystal materials,mechanical mechanisms,and ferrite devices is reviewed,and the benefits and drawbacks of various kinds of reconfigurable filters are analyzed.Finally,a summary of reconfigurable filters’future trends is provided.

关 键 词：软件无线电 可重构滤波器 变容二极管 PIN二极管 液晶 MEMS器件 

分 类 号：TN713[电子电信—电路与系统]