A Novel Design of Tunable Band-Stop Filter Using MEMS Technology

被引：0
|
作者：
Huang, J. -M. [1 ]
Zhu, F. [1 ]
Deng, Z. L. [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
来源：
2009 5TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-8 | 2009年
关键词：
RF MEMS; Band-stop filter; tunable; CPW; COPLANAR-WAVE-GUIDE;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel design of tunable band-stop filter is presented using MEMS technology. The MEMS bridge is used as the moveable structure to tune the frequency of the band-stop filter. The basic cell is designed on the coplanar waveguide (CPW) transmission line. When the bridge is at up-state, the centre resonant frequency of the basic cell is 20.3GHz. When the bridge is at down-state, the centre resonant frequency of the basic cell is 23.44GHz. The 20dB bandwidth reaches 2.87GHz. Return loss is less than 0.5 dB in the stop-band. The band-stop filter is cascaded by three basic cells. It can be tuned from 23.4 to 18.2GHz, when the MEMS bridge is changed from up to down state.
引用
收藏
页码：2423 / 2425
页数：3
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