MEMS switchable interdigital coplanar filter

被引:81
作者
Fourn, E
Pothier, A
Champeaux, C
Tristant, P
Catherinot, A
Blondy, P
Tanné, G
Rius, E
Person, C
Huret, F
机构
[1] Univ Bretagne Occidentale, Lab Elect & Syst Telecommun, F-29285 Brest, France
[2] Univ Limoges, Res Inst Opt & Microwave Commun, F-87000 Limoges, France
[3] Univ Limoges, Mat Sci Lab, F-87000 Limoges, France
关键词
filters; microelectromechanical systems (MEMS);
D O I
10.1109/TMTT.2002.806517
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
This paper presents a tunable interdigital coplanar, filter with tapped-line feedings. Microelectromechanical systems capacitors are used as a high contrast capacitive switch between a quarter-wavelength resonator and an open-ended stub to perform the frequency shift. A two-pole tunable filter with a 13% relative bandwidth has been designed, fabricated, and measured. The center frequency can be switched from 18.5 to 21.05 GHz with low return losses (less than 15 dB) and low insertion losses (3.5 dB).
引用
收藏
页码:320 / 324
页数:5
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