Title :
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
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;
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
DOI :
10.1109/ICECS.2007.4511051
