D. Reddy, B. Gowrish, V. K. Velidi, A. Subramanyam, V. Srinivasan, Y. Mehta
{"title":"空间应用折叠波导空腔滤波器中的虚负耦合","authors":"D. Reddy, B. Gowrish, V. K. Velidi, A. Subramanyam, V. Srinivasan, Y. Mehta","doi":"10.1109/IMARC.2015.7411373","DOIUrl":null,"url":null,"abstract":"This paper describes the design of a folded rectangular waveguide cavity band pass filter, incorporating virtual negative coupling (VNC) by means of circular iris, at X-band. Thus, the filter is robust from mechanical aspects, and hence apt for space application. The filter realized at 8310 MHz with 1.2 percent fractional bandwidth, has a sharp roll-off due to VNC. As a result, rejection better than 40 dBc is achieved at just 100 MHz offset from band centre. Compared to traditional all pole filter, introduction of VNC has resulted in around 20% size reduction.","PeriodicalId":307742,"journal":{"name":"2015 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"155 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Virtual negative coupling in folded waveguide cavity filter for space applications\",\"authors\":\"D. Reddy, B. Gowrish, V. K. Velidi, A. Subramanyam, V. Srinivasan, Y. Mehta\",\"doi\":\"10.1109/IMARC.2015.7411373\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper describes the design of a folded rectangular waveguide cavity band pass filter, incorporating virtual negative coupling (VNC) by means of circular iris, at X-band. Thus, the filter is robust from mechanical aspects, and hence apt for space application. The filter realized at 8310 MHz with 1.2 percent fractional bandwidth, has a sharp roll-off due to VNC. As a result, rejection better than 40 dBc is achieved at just 100 MHz offset from band centre. Compared to traditional all pole filter, introduction of VNC has resulted in around 20% size reduction.\",\"PeriodicalId\":307742,\"journal\":{\"name\":\"2015 IEEE MTT-S International Microwave and RF Conference (IMaRC)\",\"volume\":\"155 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE MTT-S International Microwave and RF Conference (IMaRC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IMARC.2015.7411373\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE MTT-S International Microwave and RF Conference (IMaRC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IMARC.2015.7411373","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Virtual negative coupling in folded waveguide cavity filter for space applications
This paper describes the design of a folded rectangular waveguide cavity band pass filter, incorporating virtual negative coupling (VNC) by means of circular iris, at X-band. Thus, the filter is robust from mechanical aspects, and hence apt for space application. The filter realized at 8310 MHz with 1.2 percent fractional bandwidth, has a sharp roll-off due to VNC. As a result, rejection better than 40 dBc is achieved at just 100 MHz offset from band centre. Compared to traditional all pole filter, introduction of VNC has resulted in around 20% size reduction.
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