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Narrow band Fabry-Perot based EBG bandpass filter

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2 Author(s)
M. F. Karim ; Institute for Infocomm Research (I2R), Singapore ; L. C. Ong

Narrow band Fabry-Perot (F-P) based electromagnetic bandgap (EBG) bandpass filter is designed, fabricated and measured. This narrow bandpass characteristic is due to the defect cavity formed in the bandgap structures by the insertion of a transmission line resonator in between the two bragg reflectors. The parametric analyses of the FP-EBG filter are investigated by considering; i) effect of EBG cells on Q factor and ii) change in the defect length and the slot dimension to influence the filter performance characteristics. The Fabry-Perot EBG filter is fabricated on silicon substrate using surface micromachining process. The measurement result of the F-P filter shows a 3dB bandwidth of around 250MHz with an insertion loss of 4dB.

Published in:

Communication Systems (ICCS), 2010 IEEE International Conference on

Date of Conference:

17-19 Nov. 2010