Title :
MEMS-switchable microwave bandpass filter
Author :
Ong, Cen ; Okoniewski, Michal
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB
Abstract :
A K-band to Ku-band switchable microstrip bandpass filter is designed and fabricated. The filter response is switched using MEMS cantilever capacitive switches. The filter design and fabrication procedures are briefly discussed. The measured filter achieves 36.2 % of frequency switching range and exhibits insertion losses of 0.6 and 1.0 dB at 21.85 and 15.15 GHz respectively. To the best of our knowledge, the reported filter has the best insertion loss characteristic of all MEMS tunable microwave filters to date. The 6.7 GHz switched frequency band is also the widest absolute frequency range for MEMS tunable filters reported to date.
Keywords :
band-pass filters; cantilevers; microstrip filters; microswitches; microwave filters; microwave switches; K-band filter; MEMS cantilever capacitive switches; MEMS tunable filters; absolute frequency range; fabrication procedures; filter design; frequency 15.15 GHz; frequency 21.85 GHz; frequency 6.7 GHz; frequency switching range; insertion losses; loss 0.6 dB; loss 1 dB; microwave filter; switchable microstrip bandpass filter; Band pass filters; Fabrication; Frequency measurement; Insertion loss; K-band; Loss measurement; Micromechanical devices; Microstrip filters; Microwave filters; Switches;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2008. MIKON 2008. 17th International Conference on
Conference_Location :
Wroclaw
Print_ISBN :
978-83-906662-8-0
