SMR-BAW duplexer for W-CDMA application

作者：Kerherve Eric^*; David Jean Baptiste; Shirakawa Alexandre A; El Hassan Moustapha; Baraka Kamal; Vincent Pierre; Cathelin Andreia

来源：Analog Integrated Circuits and Signal Processing, 2010, 64(1): 23-38.

DOI：10.1007/s10470-009-9356-0

• W-CDMA duplexer
• Solidly mounted resonator
• Bulk acoustic wave
• Design methodology
• Assembly
• Integrated passive device
• Lattice filter
• Ladder filter

This paper presents the design of a novel antenna duplexer based on a mixed ladder lattice topology using advanced Solidly Mounted Resonator-Bulk Acoustic Wave (SMR-BAW) and Integrated Passive Device (IPD) 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 and 2.3 dB for Tx and Rx paths. The Tx-Rx isolation is better than 47/57 dB. The assembly of both Rx and Tx filters on the IPD will be discussed, as well as the simulated and measurement results.

• 出版日期2010-7
• 单位中国地震局