Optimal Design Of Three-Idt Type Saw Filter Using Local Search

Kiyoharu Tagawa,Kenji Tokunaga,Hiromasa Haneda,Tsutomu Igaki,Syunichi Seki

IECON-2002: PROCEEDINGS OF THE 2002 28TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, VOLS 1-4（2002）

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摘要

An optimal design approach for Surface Acoustic Wave (SAW) filters is presented. First of all, the structural design of a three-IDT type SAW filter, which consists of three interdigital transducers (IDT) and two reflectors, is formulated as a combinatorial optimization problem. In order to simulate the frequency response of the SAW filter, the least equivalent circuit model of IDT is employed. Then, a new local search technique based on the k-degree-neighborhood is proposed and applied to the optimization problem successfully. The proposed local search is applicable generally to the structural design of various SAW devices.

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关键词

optimal design,equivalent circuit,optimization problem,surface acoustic wave,frequency response,local search,equivalent circuits

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