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A tunable bandpass BAW-filter architecture and its application to WCDMA filter

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6 Author(s)
Carpentier, J.F. ; STMicroelectron., Central R&D, Crolles, France ; Tilhac, C. ; Caruyer, G. ; Dumont, F.
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We present a tunable bandpass BAW-filter based in a first step on a hybrid integration concept to demonstrate the validity of our architecture and to evaluate the potential of such filters. The filter consists of two cascaded lattices incorporating four BAW resonators, coupled with high-Q inductors and wide tuning range active varactors. The simulated results show that it is possible to compensate ±1% deviation on the filter center frequency. The prototype is currently in manufacturing and the experimental results are available for the conference.

Published in:

Microwave Symposium Digest, 2005 IEEE MTT-S International

Date of Conference:

12-17 June 2005