Tunable bandpass filter using distributed MEMS transmission lines

Author

Lakshminarayanan, B. ; Weller, T.

Author_Institution

Center for Wireless & Microwave Inf. Syst., Univ. of South Florida, Tampa, FL, USA

Volume

3

fYear

2003

Firstpage

1789

Abstract

This paper presents a two-state tunable RF MEMS bandpass filter operating at 16.5 and 22 GHz. The topology consists of coplanar waveguide sections that are periodically loaded with MEMS capacitors. The passband insertion loss and bandwidth are 2.3 dB and 11.5% at 16.5 GHz, and 3.3 dB and 16.5% at 22 GHz. The typical switching voltage is 45-50 V.

Keywords

Chebyshev filters; band-pass filters; capacitors; circuit tuning; coplanar transmission lines; coplanar waveguide components; micromechanical devices; microwave filters; waveguide filters; 16.5 GHz; 2.3 dB; 22 GHz; 3.3 dB; 45 to 50 V; CPW bandpass filters; Chebyshev filters; MEMS capacitors; bandwidth; distributed MEMS transmission lines; microwave filters; passband insertion loss; periodically loaded coplanar waveguide sections; switching voltage; tunable bandpass filters; two-state tunable RF MEMS bandpass filters; Band pass filters; Capacitors; Coplanar transmission lines; Coplanar waveguides; Insertion loss; Micromechanical devices; Passband; Radiofrequency microelectromechanical systems; Topology; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2003 IEEE MTT-S International

Conference_Location

Philadelphia, PA, USA

ISSN

0149-645X

Print_ISBN

0-7803-7695-1

Type

conf

DOI

10.1109/MWSYM.2003.1210487

Filename

1210487