Software for a multilayered surface acoustic wave device based on the finite element method and coupling-of-modes theory

被引：4
|
作者：
Koshiba, M
Shichishima, N
Ohbuchi, K
Tsuji, Y
机构：
[1] SAPPORO SCH ARTS,SAPPORO,HOKKAIDO 005,JAPAN
[2] HOKKAIDO INST TECHNOL,DEPT APPL ELECT,SAPPORO,HOKKAIDO 006,JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1997年 / 36卷 / 5B期
关键词：
surface acoustic wave; computer-aided design; finite element method; coupling-of-modes theory; high frequency SAW filter;
D O I：
10.1143/JJAP.36.3060
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A software package that provides an interactive and graphical environment for the design and modeling of multilayered surface acoustic wave (SAW) devices is described. The software is based on the finite element method (FEM) and the coupling-of-modes theory (COM). FEM is used to calculate the dispersion diagram of an infinite periodic array and the capacitance of one pair of interdigital transducers (IDTs). COM parameters are then determined using these calculated data. As a result of COM calculations, a CI-port circuit representation is obtained for basic device elements such as IDTs, grating or IDT reflectors and delay lines. The frequency response of SAW devices composed of these elements can be systematically evaluated by cascading the (6-port; circuits. As an example, a high frequency SAW filter with a ZnO/diamond/Si structure is designed.
引用
收藏
页码：3060 / 3063
页数：4
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