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

Author

Shirakawa, A.A. ; El Hassan, Moustapha ; Cathelin, A.

Author_Institution

Jean-Baptiste David & Pierre Vincent, Grenoble

fYear

2007

fDate

11-14 Dec. 2007

Firstpage

554

Lastpage

557

Abstract

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.

Keywords

acoustic resonators; bulk acoustic wave devices; code division multiple access; mobile radio; BAW SMR; W-CDMA handsets; antenna duplexer; combined electromagnetic acoustic analysis; frequency 1920 MHz to 1980 MHz; frequency 2110 MHz to 2170 MHz; integrated passive devices technologies; loss 1.75 dB; loss 2.3 dB; mixed ladder lattice topology; mixed ladder-lattice bulk acoustic wave duplexer; solidly mounted bulk acoustic wave resonators; Acoustic waves; Design methodology; Insertion loss; Isolation technology; Multiaccess communication; Personal communication networks; Radio frequency; Resonator filters; Telephone sets; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2007. ICECS 2007. 14th IEEE International Conference on

Conference_Location

Marrakech

Print_ISBN

978-1-4244-1377-5

Electronic_ISBN

978-1-4244-1378-2

Type

conf

DOI

10.1109/ICECS.2007.4511051

Filename

4511051