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http://dx.doi.org/10.4313/JKEM.2003.16.7.647

Optimal Design and Experiment of One Chip Type SAW Duplexers using Micro_Strip Line Lumped Elements  

이승희 (경북대학교 센서공학과)
노용래 (경북대학교 기계공학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.16, no.7, 2003 , pp. 647-655 More about this Journal
Abstract
Commonly used SAW duplexers have a difficulty on manufacture so that a transmission line is printed on the package or an LTCC multi-layer is needed because a quarter-wave transmission line which is a kind of an isolation network is applied to the SAW duplexers. In this study, new structures of one chip type SAW duplexers are proposed. In the proposed structure, Tx and Rx SAW ladder filters and isolation networks are located on a single 36LiTaO$_3$ piezoelectric substrate. The manufacture process is very simple than commonly used product. It is possible to improve tile performance by means of optimizing the micro-strip line lumped elements. It is easy to integrate and modulate with other surrounding components. The optimal design techniques can be applied to other kind of multi-port devices.
Keywords
SAW duplexer; Micro-strip line; Isolation network; Optimal design;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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