{"title":"SAW滤波器的原位分析与优化","authors":"R. Cohn, R. Wagers","doi":"10.1109/ULTSYM.1985.198482","DOIUrl":null,"url":null,"abstract":"The sensitivity of a filter on (YZ) LiNbO3 to in situ perturbations of interdigitated transducer apodization is determined experimentally. From this data an optimal apodization is derived which reduces the filter sidelobe level. Results are shown in which a filter with a single apodized IDT is compensated to reduce sidelobes from -26 to -39 dB. For a filter with two apodized IDTs sidelobes have been reduced from -52 dB to -70 dB.","PeriodicalId":240321,"journal":{"name":"IEEE 1985 Ultrasonics Symposium","volume":"168 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"In Situ Analysis and Optimization of SAW Filters\",\"authors\":\"R. Cohn, R. Wagers\",\"doi\":\"10.1109/ULTSYM.1985.198482\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The sensitivity of a filter on (YZ) LiNbO3 to in situ perturbations of interdigitated transducer apodization is determined experimentally. From this data an optimal apodization is derived which reduces the filter sidelobe level. Results are shown in which a filter with a single apodized IDT is compensated to reduce sidelobes from -26 to -39 dB. For a filter with two apodized IDTs sidelobes have been reduced from -52 dB to -70 dB.\",\"PeriodicalId\":240321,\"journal\":{\"name\":\"IEEE 1985 Ultrasonics Symposium\",\"volume\":\"168 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE 1985 Ultrasonics Symposium\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ULTSYM.1985.198482\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 1985 Ultrasonics Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.1985.198482","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The sensitivity of a filter on (YZ) LiNbO3 to in situ perturbations of interdigitated transducer apodization is determined experimentally. From this data an optimal apodization is derived which reduces the filter sidelobe level. Results are shown in which a filter with a single apodized IDT is compensated to reduce sidelobes from -26 to -39 dB. For a filter with two apodized IDTs sidelobes have been reduced from -52 dB to -70 dB.
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