Title :
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
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;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751520
