{"title":"2kw, 250mhz带宽，Ku-BAND速调管放大器","authors":"M. Levin","doi":"10.1109/IEDM.1976.189065","DOIUrl":null,"url":null,"abstract":"The Varian VKU-7812 six-cavity klystron amplifier produces 2 kW of communications quality cw power at 20 percent efficiency with 30 dB gain over 250 MHz 1 dB bandwidth within the 14.0 to 14.5 GHz frequency band. This compact new tube employs permanent-magnet focusing and is entirely air cooled. The double-tuned, filter-loaded output circuit provides an interaction impedance of five to six thousand ohms over the bandpass. The microperveance 1.25, convergence 50 electron gun produces a high quality 0.03 inch diameter beam which is confined within the 0.05 inch tunnel by a pair of samarium cobalt radially magnetized magnets producing a main field of 5 kg. Intercavity drift lengths, R/Q and driver cavity loading were computer optimized for gain, bandwidth and efficiency with minimum magnet size, while also eliminating gain cancellations.","PeriodicalId":106190,"journal":{"name":"1976 International Electron Devices Meeting","volume":"60 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"2 kw, 250 MHz Bandwidth, Ku-BAND klystron amplifier\",\"authors\":\"M. Levin\",\"doi\":\"10.1109/IEDM.1976.189065\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The Varian VKU-7812 six-cavity klystron amplifier produces 2 kW of communications quality cw power at 20 percent efficiency with 30 dB gain over 250 MHz 1 dB bandwidth within the 14.0 to 14.5 GHz frequency band. This compact new tube employs permanent-magnet focusing and is entirely air cooled. The double-tuned, filter-loaded output circuit provides an interaction impedance of five to six thousand ohms over the bandpass. The microperveance 1.25, convergence 50 electron gun produces a high quality 0.03 inch diameter beam which is confined within the 0.05 inch tunnel by a pair of samarium cobalt radially magnetized magnets producing a main field of 5 kg. Intercavity drift lengths, R/Q and driver cavity loading were computer optimized for gain, bandwidth and efficiency with minimum magnet size, while also eliminating gain cancellations.\",\"PeriodicalId\":106190,\"journal\":{\"name\":\"1976 International Electron Devices Meeting\",\"volume\":\"60 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1976 International Electron Devices Meeting\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IEDM.1976.189065\",\"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.1976.189065","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The Varian VKU-7812 six-cavity klystron amplifier produces 2 kW of communications quality cw power at 20 percent efficiency with 30 dB gain over 250 MHz 1 dB bandwidth within the 14.0 to 14.5 GHz frequency band. This compact new tube employs permanent-magnet focusing and is entirely air cooled. The double-tuned, filter-loaded output circuit provides an interaction impedance of five to six thousand ohms over the bandpass. The microperveance 1.25, convergence 50 electron gun produces a high quality 0.03 inch diameter beam which is confined within the 0.05 inch tunnel by a pair of samarium cobalt radially magnetized magnets producing a main field of 5 kg. Intercavity drift lengths, R/Q and driver cavity loading were computer optimized for gain, bandwidth and efficiency with minimum magnet size, while also eliminating gain cancellations.
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