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Journal of Zhejiang University SCIENCE A
ISSN 1673-565X(Print), 1862-1775(Online), Monthly
2001 Vol.2 No.4 P.395-400
USE OF SUPERPOSITION PRINCIPLE TO DERIVE A GENERAL MATHEMATICAL MODEL TO SIMULATE ONE-TO-ONE, ONE-TO-MULTI AND MULTI-TO-MULTI SAW FILTER DESIGNS
Abstract: This paper explains and summarizes a new attempt to derive a general mathematical model [GMM] to simulate surface acoustic wave (SAW) filters, using the superposition principle and delta function model. GMM can be used to simulate One-to-One, One-to-Multi and Multi-to-Multi SAW filter devices. The simulation program was written using MATLAB (the language of technical computing). Four-design structures (One-to-One, One-to-Two, One-to-Three and Ten-to-Ten) are selected to test the correctness of GMM. The frequency response of the simulation and test results are similar in center frequency and 3-dB bandwidth, but the insertion loss is different, because of some second order effects (Issa Haitham, 1999).
Key words: surface acoustic wave filter and interdigital transducer (IDT)
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Open peer comments: Debate/Discuss/Question/Opinion
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DOI:
10.1631/jzus.2001.0395
CLC number:
TN911
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Received:
2000-09-18
Revision Accepted:
2001-04-28
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