Title :
Bandwidth and central frequency control on tunable bandpass filter by using MEMS cantilevers
Author :
Fourn, Erwan ; Quendo, C. ; Rius, E. ; Pothier, A. ; Blondy, P. ; Champeaux, C. ; Orlianges, J.C. ; Catherinot, A. ; Tanne, G. ; Person, C. ; Huret, F.
Author_Institution :
LEST, CNRS, Brest, France
Abstract :
This paper deals with a tunable bandpass filter topology which controls independently and simultaneously both the central frequency and bandwidth. This tunable filter results from the association of MEMS cantilevers, used as variable capacitors, with an original passive topology. The latter is based on dual behavior resonators (DBRs), each of them is constituted of low- and high-frequency open-ended stubs. The associated filter electrical response is characterized by tunable frequency transmission zeros. A millimeter bandpass filter with central frequency and relative bandwidth tunability of about 10 and 75%, respectively, is presented.
Keywords :
band-pass filters; capacitors; circuit simulation; circuit tuning; electrostatic actuators; millimetre wave filters; resonator filters; 29.5 to 32.4 GHz; 3.6 dB; DBR; circuit simulation; dual behavior resonators; electrostatically actuated MEMS cantilevers; low/high-frequency open-ended stubs; mm-wave tunable bandpass filter topology; passive filter topology; relative bandwidth tunability; tunable bandpass filter bandwidth/central frequency control; tunable frequency transmission zeros; variable capacitors; Band pass filters; Bandwidth; Capacitors; Centralized control; Filtering theory; Frequency control; Micromechanical devices; Passive filters; Resonator filters; Topology;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1210991
