Integration of high-Q BAW resonators and filters above IC

A double-lattice BAW filter with balanced input and output is designed with a center frequency of 2.14GHz. The filter is integrated directly above a 0.25/spl mu/m BiCMOS RF IC. Insertion loss of -3dB and out-of-band rejection better than -50dB are achieved. An integrated LNA comprising two broadband...

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Bibliographic Details
Main Authors: Dubois, M.-A., Billard, C., Muller, C., Parat, G., Vincent, P.
Format: Conference Proceeding
Language:English
Subjects:
Attenuation
Band pass filters
BiCMOS integrated circuits
Film bulk acoustic resonators
Frequency
Insertion loss
Lattices
Multiaccess communication
Q factor
Resonator filters
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Description
Summary:A double-lattice BAW filter with balanced input and output is designed with a center frequency of 2.14GHz. The filter is integrated directly above a 0.25/spl mu/m BiCMOS RF IC. Insertion loss of -3dB and out-of-band rejection better than -50dB are achieved. An integrated LNA comprising two broadband amplifiers and one BAW filter is also presented.
ISSN:0193-6530
2376-8606
DOI:10.1109/ISSCC.2005.1494034