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TECHNICAL PAPERS

A One-Dimensional Theory for the Analysis of Strip Surface Acoustic Waveguides

[+] Author and Article Information
Shi Chen

 Xi’an Jiaotong University, Xi’an 710049, China; School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, Chinachenshi@snnu.edu.cn

Tiantong Tang, Zhaohong Wang

 Xi’an Jiatong University, Xian 710049, China

J. Appl. Mech 74(5), 1006-1010 (Feb 01, 2007) (5 pages) doi:10.1115/1.2723815 History: Received August 24, 2006; Revised February 01, 2007

In this paper, an effective and new one-dimensional theory for the analysis of strip surface acoustic waveguides is presented. Compared with the known methods, a prominent advantage of this method proposed in this paper is that all the field variables can be calculated.

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Copyright © 2007 by American Society of Mechanical Engineers
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Figures

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Figure 1

A section of a strip surface acoustic waveguide

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Figure 2

The relationship between the phase velocity of SAWs and the thickness–frequency product in a SiO2∕Si structure, where the film SiO2 is infinite in the x2 and x3 directions

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Figure 3

The eigenmodes in the strip waveguide (SiO2∕Si) structure, where the thickness of the film SiO2 is h=0.25μm, and the frequency of waves is f=ω∕2π=0.17GHz

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Figure 4

The relative amplitude of u1 of the first mode, where h=0.25μm, w=120μm, and f=0.17GHz

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Figure 5

The relative amplitude of u2 of the first mode, where h=0.25μm, w=120μm, and f=0.17GHz

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Figure 6

The relative amplitude of u1 of the second mode, where h=0.25μm, w=120μm, and f=0.17GHz

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Figure 7

The relative amplitude of u2 of the second mode, where h=0.25μm, w=120μm, and f=0.17GHz

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