A Mixed Ladder-Lattice Bulk Acoustic Wave Duplexer for W-CDMA Handsets

This paper presents the design of a novel antenna duplexer based on a mixed ladder lattice topology using advanced BAW SMR (Solidly mounted bulk acoustic wave Resonators) and IPD (integrated passive devices) technologies. The duplexer is designed for application on W-CDMA handsets (Tx: 1920-1980 MHz...

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Bibliographic Details
Main Authors: Shirakawa, Alexandre A., David, J.-B., Vincent, P., El Hassan, Moustapha, Kerherve, E., Cathelin, Andreia
Format: Conference Proceeding
Language:English
Subjects:
Acoustic waves
Design methodology
Insertion loss
Isolation technology
Multiaccess communication
Personal communication networks
Radio frequency
Resonator filters
Telephone sets
Topology
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Summary:This paper presents the design of a novel antenna duplexer based on a mixed ladder lattice topology using advanced BAW SMR (Solidly mounted bulk acoustic wave Resonators) and IPD (integrated passive devices) technologies. The duplexer is designed for application on W-CDMA handsets (Tx: 1920-1980 MHz, rx: 2110-2170 MHz). The design methodology and implementation issues are discussed. A combined electromagnetic acoustic analysis results in a maximum insertion loss of 1.75 dB and 2.3 for Tx and Rx paths. The Tx-RX rejection is better than 47/57 dB.
DOI:10.1109/ICECS.2007.4511051