COMPACT MEMS BASED RECONFIGURABLE BAND-PASS MICROSTRIP FILTER USING DEFECTED GROUND STRUCTURE (DGS)

被引：9
|
作者：
Rehman, S. Ur [1 ]
Sheta, A. F. A. [1 ]
Alkanhal, M. A. S. [1 ]
机构：
[1] King Saud Univ, Dept Elect Engn, Riyadh 11421, Saudi Arabia
来源：
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2012年 / 26卷 / 2-3期
关键词：
D O I：
10.1163/156939312800030785
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 new compact MEMS-based reconfigurable bandpass filter is presented. The proposed structure consists of symmetrically coupled DGS resonators, etched in the ground plane, with a microstrip excitation to obtain a bandpass filter response. The reconfigurability is achieved by short circuiting part of the slots etched in the ground plane using RF MEMS switches. The structure is optimized in order to allow soldering the MEMS switches and implementing the bias strips. A reconfigurable bandpass filter is designed, analyzed, and implemented on Duroid dielectric substrate with 2.2 dielectric constant and 0.78 mm thickness. The filter is designed to switch between the two center frequencies 1.62 and 1.85 GHz with approximately 7.5% relative bandwidth. The measured results are in good agreement with the simulations.
引用
收藏
页码：353 / 365
页数：13
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