{"title":"非均匀阶跃阻抗波纹波导低通滤波器","authors":"R. Levy","doi":"10.1109/MWSYM.2005.1616537","DOIUrl":null,"url":null,"abstract":"Previous work on homogeneous stepped-impedance corrugated filters has been extended to the general inhomogeneous structure, where the waveguide broad dimension is varied in addition to the narrow dimension. It is then possible to design waveguide lowpass filters with specified stopbands free of spurious mode propagation to give rejection levels as high as 100 dB. Additionally, control over the lower cut-off frequency and the ability to match down almost to this frequency facilitates the design of compact waveguide bandpass filters having very broad bandwidths.","PeriodicalId":13133,"journal":{"name":"IEEE MTT-S International Microwave Symposium Digest, 2005.","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Inhomogeneous Stepped-Impedance Corrugated Waveguide Low-Pass Filters\",\"authors\":\"R. Levy\",\"doi\":\"10.1109/MWSYM.2005.1616537\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Previous work on homogeneous stepped-impedance corrugated filters has been extended to the general inhomogeneous structure, where the waveguide broad dimension is varied in addition to the narrow dimension. It is then possible to design waveguide lowpass filters with specified stopbands free of spurious mode propagation to give rejection levels as high as 100 dB. Additionally, control over the lower cut-off frequency and the ability to match down almost to this frequency facilitates the design of compact waveguide bandpass filters having very broad bandwidths.\",\"PeriodicalId\":13133,\"journal\":{\"name\":\"IEEE MTT-S International Microwave Symposium Digest, 2005.\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2005-06-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE MTT-S International Microwave Symposium Digest, 2005.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.2005.1616537\",\"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 MTT-S International Microwave Symposium Digest, 2005.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2005.1616537","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Previous work on homogeneous stepped-impedance corrugated filters has been extended to the general inhomogeneous structure, where the waveguide broad dimension is varied in addition to the narrow dimension. It is then possible to design waveguide lowpass filters with specified stopbands free of spurious mode propagation to give rejection levels as high as 100 dB. Additionally, control over the lower cut-off frequency and the ability to match down almost to this frequency facilitates the design of compact waveguide bandpass filters having very broad bandwidths.
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