Theoretical and experimental study of superhigh electromechanical coupling surface acoustic wave propagation in KNbO3 single crystal

被引：115

作者：

Yamanouchi, K

Odagawa, H

Kojima, T

Matsumura, T

机构：

[1] Res. Inst. of Elec. Communication, Tohoku University, Aobaku, Sendai 980, 2-1-1, Katahira

来源：

ELECTRONICS LETTERS | 1997年 / 33卷 / 03期

关键词：

surface acoustic wave devices; piezoelectric devices;

D O I：

10.1049/el:19970145

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The propagation characteristics of surface acoustic waves (SAWs) and piezoelectric leaky surface waves in single crystal KNbO3 were investigated theoretically and experimentally. The results show that the electromechanical coupling coefficient of the surface wave propagating along the X-axis of the rotated Y-cut plane is very large, K-2 = 0.53, compared to K-2 of 0.055 for LiNbO3.

引用

页码：193 / 194

页数：2

共 3 条

[1] A METHOD FOR ESTIMATING OPTIMAL CRYSTAL CUTS AND PROPAGATION DIRECTIONS FOR EXCITATION OF PIEZOELECTRIC SURFACE WAVES [J].