A novel MEMS-based tunable dielectric resonator filter

Author

Huang, Fengxi ; Fouladi, Siamak ; Mansour, Raafat

Author_Institution

Center for Integrated RF Eng., Univ. of Waterloo, Waterloo, ON, Canada

fYear

2011

fDate

5-10 June 2011

Firstpage

1

Lastpage

4

Abstract

This paper presents the design and implementation of a new class of high-Q tunable dielectric resonator (DR) filters based on microelectromechanical systems (MEMS) switches. The use of MEMS switches results in the compact implementation of the proposed filter with near to zero DC power consumption for tuning and high tuning speed. The filter consists of two disk shape dielectric resonators with circular holes created in the center of each resonator. An initial prototype of the filter is assembled. The filter operates in TME mode at a center frequency of 4.8 GHz with a bandwidth of 21 MHz. Measurement results of this prototype demonstrate a tuning range of 160 MHz while the quality factor ranges from 1200-510 over the tuning range. The proposed tuning approach is applicable to other modes of dielectric resonator filters.

Keywords

dielectric resonator filters; microswitches; microwave filters; microwave resonators; DC power consumption; MEMS switches; MEMS-based tunable dielectric resonator filter; TME mode; bandwidth 21 MHz; circular holes; disk shape dielectric resonators; frequency 160 MHz; frequency 4.8 GHz; high-Q tunable dielectric resonator filters; microelectromechanical systems switches; quality factor; Dielectrics; Microswitches; Microwave filters; Resonant frequency; Resonator filters; Strips; Tuning; Dielectric resonator; MEMS switches; high quality factor; tunable filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International

Conference_Location

Baltimore, MD

ISSN

0149-645X

Print_ISBN

978-1-61284-754-2

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2011.5972865

Filename

5972865