{"title":"高关闭共振隔离的铁氧体调谐毫米波带通滤波器","authors":"D. Nicholson","doi":"10.1109/MWSYM.1988.22169","DOIUrl":null,"url":null,"abstract":"By combining four hexagonal ferrite spheres under the same magnet structure, magnetically tunable bandpass filters were built in waveguide yielding increased off-resonance isolation (ORI), while keeping insertion loss (IL) to a reasonable value. Examples of these filters for the 26.5-40-GHz, 33-50-GHz, 40-60-GHz, and 50-75-GHz ranges are presented with typical ORI above 70 dB and IL less than 13 dB for full band tuning. A performance summary for these four sphere waveguide filters is given showing the similar performance obtained in the different bands.<<ETX>>","PeriodicalId":339513,"journal":{"name":"1988., IEEE MTT-S International Microwave Symposium Digest","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"12","resultStr":"{\"title\":\"Ferrite tuned millimeter wave bandpass filters with high off resonance isolation\",\"authors\":\"D. Nicholson\",\"doi\":\"10.1109/MWSYM.1988.22169\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"By combining four hexagonal ferrite spheres under the same magnet structure, magnetically tunable bandpass filters were built in waveguide yielding increased off-resonance isolation (ORI), while keeping insertion loss (IL) to a reasonable value. Examples of these filters for the 26.5-40-GHz, 33-50-GHz, 40-60-GHz, and 50-75-GHz ranges are presented with typical ORI above 70 dB and IL less than 13 dB for full band tuning. A performance summary for these four sphere waveguide filters is given showing the similar performance obtained in the different bands.<<ETX>>\",\"PeriodicalId\":339513,\"journal\":{\"name\":\"1988., IEEE MTT-S International Microwave Symposium Digest\",\"volume\":\"41 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-05-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"12\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1988., IEEE MTT-S International Microwave Symposium Digest\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.1988.22169\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1988., IEEE MTT-S International Microwave Symposium Digest","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.1988.22169","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ferrite tuned millimeter wave bandpass filters with high off resonance isolation
By combining four hexagonal ferrite spheres under the same magnet structure, magnetically tunable bandpass filters were built in waveguide yielding increased off-resonance isolation (ORI), while keeping insertion loss (IL) to a reasonable value. Examples of these filters for the 26.5-40-GHz, 33-50-GHz, 40-60-GHz, and 50-75-GHz ranges are presented with typical ORI above 70 dB and IL less than 13 dB for full band tuning. A performance summary for these four sphere waveguide filters is given showing the similar performance obtained in the different bands.<>
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