Reconfigurable 4 pole bandstop filter based on RF-MEMS-loaded split ring resonators

Author

Bouyge, David ; Crunteanu, Aurelian ; Pothier, Arnaud ; Martin, P. Olivier ; Blondy, Pierre ; Velez, Adolfo ; Bonache, Jordi ; Orlianges, J. Christophe ; Martin, Ferran

Author_Institution

Dept. d´´Eng. Electron., Univ. Autonoma de Barcelona, Bellaterra, Spain

fYear

2010

fDate

23-28 May 2010

Firstpage

588

Lastpage

591

Abstract

A reconfigurable four-pole bandstop filter based on the combination of the split ring resonators (SRRs) and RFMEMS switches, operative at the X frequency band, is presented for the first time. The fabricated device consists on a microstrip line loaded with four pairs of SRRs, exhibiting four different resonance frequencies, and two capacitive ON/OFF switches placed between the inner and outer rings of each SRR. Through their electrostatic actuation, the resonance frequency of each SRR can be shifted and as a result filter bandwidth can be digitally controlled, or even suppressed. Good agreement between theory and experiment is achieved.

Keywords

band-stop filters; circuit resonance; electrostatic actuators; micromechanical resonators; microstrip lines; microswitches; RF-MEMS switches; RF-MEMS-loaded split ring resonator; X frequency band; capacitive ON/OFF switches; electrostatic actuation; fabricated device; filter bandwidth; microstrip line; reconfigurable four-pole bandstop filter; resonance frequency; Bandwidth; Digital control; Digital filters; Electrostatic actuators; Microstrip; Optical ring resonators; Resonance; Resonant frequency; Resonator filters; Switches; Bandstop filters; RF-MEMS; cantilevers; split ring resonators; switching; tunable filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International

Conference_Location

Anaheim, CA

ISSN

0149-645X

Print_ISBN

978-1-4244-6056-4

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2010.5517736

Filename

5517736