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A tunable asymmetric notch filter using RFMEMS

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4 Author(s)
De Luis, J.R. ; University of California Irvine, United States ; Morris, A.S. ; Gu, Q. ; De Flaviis, F.

In this paper, a single pole single zero asymmetric notch filter using RF micro electromechanical tunable capacitors is presented. The high Q value of the tunable capacitors enables this filter to achieve 25.5dB rejection with less than 1.2dB insertion loss over a 5MHz signal bandwidth. This tunable filter is designed to suppress transmission leakage in the IMT Band I (1.92–1.98GHz) band for handset WCDMA receivers. It also can serve as a component in handset tunable duplexers.

Published in:

Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International

Date of Conference:

23-28 May 2010

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