ATTENUATION AND VELOCITY OF SURFACE-WAVES ON A PIEZOELECTRIC SUBSTRATE COATED WITH ADMITTANCE FILMS

被引：1

作者：

SHIMIZU, Y

TERAZAKI, A

机构：

[1] Tokyo Institute of Technology, Oh-okayama, Meguro-ku, Tokyo

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 1979年 / 66卷 / 03期

关键词：

D O I：

10.1121/1.383684

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The effects of an admittance sheet upon the propagation of surface acoustic waves on a piezoelectric substrate are investigated. The quasistatic approximation and a very simple approximate formula are shown theoretically, and these are compared numerically with each other. It is found that the simple formula is in good agreement with the quasistatic approximation and with measured values. It is also shown that the attenuation constants become smaller when the capacitive susceptance of the sheet increases. © 1979, American Association of Physics Teachers. All rights reserved.

引用

页码：806 / 810

页数：5

共 9 条

[1] SIMPLE THEORY OF ACOUSTIC AMPLIFICATION [J].