{"title":"一种高效行波管，适用于l波段航空、海事和移动卫星通信系统","authors":"O. Sauseng, J. M. Johnston, C.M. Leigh","doi":"10.1109/AERO.1988.38662","DOIUrl":null,"url":null,"abstract":"An L-band space communications tube (8537H) has been developed that provides 80 to 100 W power with about 60% efficiency, while maintaining excellent phase-linearity characteristics. At saturation the differential phase shift is 35 degrees , while the AM/PM (amplitude modulation/pulse modulation) conversion factor is 3.5 degrees /dB at the 80-W power level. The third-order intermodulation distortion provides a C/I (carrier/intermodulation) value of 23 dB at 7-dB output power backoff level. The tube is relatively small in size and weight, with a tube length of 23.6 in, and a weight of only 5.75 lb. (2.6 kg). The tube has a very long life expectancy, estimated to 120000 hours (14 y).<<ETX>>","PeriodicalId":260452,"journal":{"name":"IEEE Digest on Aerospace Applications Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A high efficiency traveling-wave tube for L-band aeronautical, maritime, and mobile satellite communication systems\",\"authors\":\"O. Sauseng, J. M. Johnston, C.M. Leigh\",\"doi\":\"10.1109/AERO.1988.38662\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An L-band space communications tube (8537H) has been developed that provides 80 to 100 W power with about 60% efficiency, while maintaining excellent phase-linearity characteristics. At saturation the differential phase shift is 35 degrees , while the AM/PM (amplitude modulation/pulse modulation) conversion factor is 3.5 degrees /dB at the 80-W power level. The third-order intermodulation distortion provides a C/I (carrier/intermodulation) value of 23 dB at 7-dB output power backoff level. The tube is relatively small in size and weight, with a tube length of 23.6 in, and a weight of only 5.75 lb. (2.6 kg). The tube has a very long life expectancy, estimated to 120000 hours (14 y).<<ETX>>\",\"PeriodicalId\":260452,\"journal\":{\"name\":\"IEEE Digest on Aerospace Applications Conference\",\"volume\":\"15 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-02-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Digest on Aerospace Applications Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/AERO.1988.38662\",\"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 Digest on Aerospace Applications Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/AERO.1988.38662","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A high efficiency traveling-wave tube for L-band aeronautical, maritime, and mobile satellite communication systems
An L-band space communications tube (8537H) has been developed that provides 80 to 100 W power with about 60% efficiency, while maintaining excellent phase-linearity characteristics. At saturation the differential phase shift is 35 degrees , while the AM/PM (amplitude modulation/pulse modulation) conversion factor is 3.5 degrees /dB at the 80-W power level. The third-order intermodulation distortion provides a C/I (carrier/intermodulation) value of 23 dB at 7-dB output power backoff level. The tube is relatively small in size and weight, with a tube length of 23.6 in, and a weight of only 5.75 lb. (2.6 kg). The tube has a very long life expectancy, estimated to 120000 hours (14 y).<>
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