{"title":"s波段300kW T.W.T.","authors":"P. A. Davis","doi":"10.1109/IEDM.1976.189031","DOIUrl":null,"url":null,"abstract":"This paper describes the development of a high power, grid pulsed T.W.T. being developed for a mobile radar system requiring high efficiency, minimum size and weight. The T.W.T. uses a single section cloverleaf r.f. structure giving good pushing and linearity performance for pulse compression systems and is novel in having a compact P.P.M. focussing system incorporated in the structure. It will be capable of a minimum peak power of 300kW and saturated gain of 20dB in a 9% 1 dB bandwidth. Efficiency should be at least 45% mid-band using collector depression and a frequency dependent velocity taper. The first tubes produced over 300kW with 90% beam transmission when 40% collector depression was used.","PeriodicalId":106190,"journal":{"name":"1976 International Electron Devices Meeting","volume":"169 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"S-band 300kW T.W.T.\",\"authors\":\"P. A. Davis\",\"doi\":\"10.1109/IEDM.1976.189031\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper describes the development of a high power, grid pulsed T.W.T. being developed for a mobile radar system requiring high efficiency, minimum size and weight. The T.W.T. uses a single section cloverleaf r.f. structure giving good pushing and linearity performance for pulse compression systems and is novel in having a compact P.P.M. focussing system incorporated in the structure. It will be capable of a minimum peak power of 300kW and saturated gain of 20dB in a 9% 1 dB bandwidth. Efficiency should be at least 45% mid-band using collector depression and a frequency dependent velocity taper. The first tubes produced over 300kW with 90% beam transmission when 40% collector depression was used.\",\"PeriodicalId\":106190,\"journal\":{\"name\":\"1976 International Electron Devices Meeting\",\"volume\":\"169 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1976 International Electron Devices Meeting\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IEDM.1976.189031\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1976 International Electron Devices Meeting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IEDM.1976.189031","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
This paper describes the development of a high power, grid pulsed T.W.T. being developed for a mobile radar system requiring high efficiency, minimum size and weight. The T.W.T. uses a single section cloverleaf r.f. structure giving good pushing and linearity performance for pulse compression systems and is novel in having a compact P.P.M. focussing system incorporated in the structure. It will be capable of a minimum peak power of 300kW and saturated gain of 20dB in a 9% 1 dB bandwidth. Efficiency should be at least 45% mid-band using collector depression and a frequency dependent velocity taper. The first tubes produced over 300kW with 90% beam transmission when 40% collector depression was used.
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