A Dual-Band MEMS Reconfigurable Filter for a Multi-Standard Radio Front-End

Author

Palego, Cristiano ; Pothier, Arnaud ; Crunteanu, Aurelian ; Blondy, Pierre

Author_Institution

Univ. de Limoges/CNRS, Limoges

fYear

2008

fDate

27-31 Oct. 2008

Firstpage

587

Lastpage

590

Abstract

A new kind of MEMS multi-standard filter has been developed and fabricated on quartz substrate. This device is optimized for dual-band operations in a radio front-end subsystem, switching between two very different standards: DCS1800 at 1.84 GHz with 4% fractional bandwidth (FBW), and WLAN at 5.2 GHz with 17% FBW. The original architecture based on hybrid lumped/distributed elements design and integrating MEMS controlled capacitor banks is first introduced. Hence, the measurement results are presented and discussed showing very good agreement with simulation results and enabling full validation of the principle.

Keywords

capacitors; digital communication; micromechanical devices; radio equipment; radiofrequency filters; wireless LAN; DCS1800 standard; WLAN; capacitor banks; dual-band MEMS reconfigurable filter; frequency 1.84 GHz; frequency 5.2 GHz; hybrid lumped-distributed elements design; multistandard radio front-end; quartz substrate; Bandwidth; Capacitance; Chromium; Coupling circuits; Dual band; Filters; Impedance; Insertion loss; Micromechanical devices; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. EuMC 2008. 38th European

Conference_Location

Amsterdam

Print_ISBN

978-2-87487-006-4

Type

conf

DOI

10.1109/EUMC.2008.4751520

Filename

4751520