{"title":"一种低损耗高性能滤波器结构","authors":"P. Dufilié, J. Hode, J. Desbois","doi":"10.1109/ULTSYM.1988.49355","DOIUrl":null,"url":null,"abstract":"An improved structure for low loss, sharp cutoff, high-rejection filters has been developed. Center frequencies as high as 1500 MHz can be realized with standard optical processing techniques. Relative bandwidths of up to 0.67 K/sup 2/ are achievable. Data are presented for 900-MHz filters on 128 degrees YX-LiNbOI/sub 3/ and 950-MHz filters on 36 degrees YX-LiTaO/sub 3/ each having 3% and 1.6% relative bandwidths. 50-dB out-of-band rejection, and <6-dB insertion loss. By simple scaling of the designs to a 0.65- mu m minimum linewidth, a center frequency of 1.4 GHz can be achieved on LiNbO/sub 3/ and 1.5 GHz on LiTaO/sub 3/.<<ETX>>","PeriodicalId":263198,"journal":{"name":"IEEE 1988 Ultrasonics Symposium Proceedings.","volume":"81 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"14","resultStr":"{\"title\":\"A low loss high performance filter structure\",\"authors\":\"P. Dufilié, J. Hode, J. Desbois\",\"doi\":\"10.1109/ULTSYM.1988.49355\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An improved structure for low loss, sharp cutoff, high-rejection filters has been developed. Center frequencies as high as 1500 MHz can be realized with standard optical processing techniques. Relative bandwidths of up to 0.67 K/sup 2/ are achievable. Data are presented for 900-MHz filters on 128 degrees YX-LiNbOI/sub 3/ and 950-MHz filters on 36 degrees YX-LiTaO/sub 3/ each having 3% and 1.6% relative bandwidths. 50-dB out-of-band rejection, and <6-dB insertion loss. By simple scaling of the designs to a 0.65- mu m minimum linewidth, a center frequency of 1.4 GHz can be achieved on LiNbO/sub 3/ and 1.5 GHz on LiTaO/sub 3/.<<ETX>>\",\"PeriodicalId\":263198,\"journal\":{\"name\":\"IEEE 1988 Ultrasonics Symposium Proceedings.\",\"volume\":\"81 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-10-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"14\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE 1988 Ultrasonics Symposium Proceedings.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ULTSYM.1988.49355\",\"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 1988 Ultrasonics Symposium Proceedings.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ULTSYM.1988.49355","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An improved structure for low loss, sharp cutoff, high-rejection filters has been developed. Center frequencies as high as 1500 MHz can be realized with standard optical processing techniques. Relative bandwidths of up to 0.67 K/sup 2/ are achievable. Data are presented for 900-MHz filters on 128 degrees YX-LiNbOI/sub 3/ and 950-MHz filters on 36 degrees YX-LiTaO/sub 3/ each having 3% and 1.6% relative bandwidths. 50-dB out-of-band rejection, and <6-dB insertion loss. By simple scaling of the designs to a 0.65- mu m minimum linewidth, a center frequency of 1.4 GHz can be achieved on LiNbO/sub 3/ and 1.5 GHz on LiTaO/sub 3/.<>
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