Journal of the Korean Institute of Telematics and Electronics A (전자공학회논문지A)
- Volume 30A Issue 11
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- Pages.88-98
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- 1993
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- 1016-135X(pISSN)
The Analysis of SAW IDT Characteristics Using Quasi-Static Approximation
준정근사계산법을 이용한 탄성표면파 변환기의 특성 해석
Abstract
In this paper, the effective permittivity in the piezoelectric material is numerically obtained and greens function is derived from that. It is shown that the admittance and the transfer function of an interdigital transducer is represented by electrostatic charge distribution using Quasi-static approximation. To prove the validity of the quasi-static approximation, numerical results for the uniform IDT of a filter mounted on 128
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