Rigorous treatment of leaky SAW's and new equivalent circuit representation for interdigital transducers

被引：11

作者：

Hikita, M

Isobe, A

Sumioka, A

Matsuura, N

Okazaki, K

机构：

[1] HITACHI DENNSHI LTD, KOGANEI, TOKYO 184, JAPAN

[2] HITACHI LTD, YOKOHAMA WORKS, YOKOHAMA, KANAGAWA 244, JAPAN

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 1996年 / 43卷 / 03期

关键词：

D O I：

10.1109/58.489408

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Leaky surface acoustic wave (SAW) interdigital transducers (IDT's) formed on 36 degrees YX-LiTaO3 and 41 degrees and 64 degrees YX-LiNbO3 are theoretically analyzed, and a new equivalent circuit representation is proposed. The influence of the attenuation constant due to leakage as well as conductance caused by bulkwave radiation are taken into account in this paper. A new treatment based on an integral equation approach provides all circuit parameters. Fundamental experiments show fairly good agreement between theoretical and experimental results, confirming that this treatment provides very accurate tools for designing leaky-SAW devices.

引用

页码：482 / 490

页数：9

共 23 条

[1] APPLICATION OF MICROWAVE CONCEPTS TO THEORY OF ACOUSTIC FIELDS AND WAVES IN SOLIDS [J].