{"title":"High precision simulation of broadband SAW filters","authors":"G. Visintini, R. Ganss-Puchstein, C. Ruppel","doi":"10.1109/ULTSYM.1988.49334","DOIUrl":null,"url":null,"abstract":"A full two-dimensional simulation model for broadband SAW (surface acoustic wave) filter has been developed using the technique of modular modeling. The model takes into account the second-order effects caused by wave diffraction and refraction, two-dimensional static charge distribution, metal resistance, and external load impedances. The angular spectrum formalism is generalized to allow the description of all effects mentioned. The simulation of a LZ LiNbO/sub 3/ filter with an aperture of 80 lambda and a relative bandwidth of 41% shows an excellent agreement with the measurement. The agreement in the passband is better than 0.1 dB, and the stopband approximation is also shown to be excellent.<<ETX>>","PeriodicalId":263198,"journal":{"name":"IEEE 1988 Ultrasonics Symposium Proceedings.","volume":"250 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"13","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 1988 Ultrasonics Symposium Proceedings.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.1988.49334","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 13
Abstract
A full two-dimensional simulation model for broadband SAW (surface acoustic wave) filter has been developed using the technique of modular modeling. The model takes into account the second-order effects caused by wave diffraction and refraction, two-dimensional static charge distribution, metal resistance, and external load impedances. The angular spectrum formalism is generalized to allow the description of all effects mentioned. The simulation of a LZ LiNbO/sub 3/ filter with an aperture of 80 lambda and a relative bandwidth of 41% shows an excellent agreement with the measurement. The agreement in the passband is better than 0.1 dB, and the stopband approximation is also shown to be excellent.<>
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