{"title":"前向注入宽带行波放大器的分析","authors":"D. Dialetis, L. Barnett, K. Chu","doi":"10.1109/irmm.1983.9126466","DOIUrl":null,"url":null,"abstract":"Theoretical results will be presented for a wideband forward injection gyrotron traveling wave amplifier. The wideband frequency spectrum is obtained by employing a weakly tapered external magnetic field which is set above exact grazing. Operation at such magnetic fields has been demonstrated by initial experimental observations. It will be shown that, in spite of a large launching loss over the whole frequency region, it is possible to obtain significant gain over a broad bandwidth. Also, it will be shown that the absolute instability, that usually occurs in the gyrotron traveling wave amplifier, can be avoided by operating at a high beam voltage. Finally, results on the effect of temperature on the performance of the device will be presented.","PeriodicalId":314918,"journal":{"name":"1983 Eighth International Conference on Infrared and Millimeter Waves","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of a forward injection wideband traveling wave amplifier\",\"authors\":\"D. Dialetis, L. Barnett, K. Chu\",\"doi\":\"10.1109/irmm.1983.9126466\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Theoretical results will be presented for a wideband forward injection gyrotron traveling wave amplifier. The wideband frequency spectrum is obtained by employing a weakly tapered external magnetic field which is set above exact grazing. Operation at such magnetic fields has been demonstrated by initial experimental observations. It will be shown that, in spite of a large launching loss over the whole frequency region, it is possible to obtain significant gain over a broad bandwidth. Also, it will be shown that the absolute instability, that usually occurs in the gyrotron traveling wave amplifier, can be avoided by operating at a high beam voltage. Finally, results on the effect of temperature on the performance of the device will be presented.\",\"PeriodicalId\":314918,\"journal\":{\"name\":\"1983 Eighth International Conference on Infrared and Millimeter Waves\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1983-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1983 Eighth International Conference on Infrared and Millimeter Waves\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/irmm.1983.9126466\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1983 Eighth International Conference on Infrared and Millimeter Waves","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/irmm.1983.9126466","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Analysis of a forward injection wideband traveling wave amplifier
Theoretical results will be presented for a wideband forward injection gyrotron traveling wave amplifier. The wideband frequency spectrum is obtained by employing a weakly tapered external magnetic field which is set above exact grazing. Operation at such magnetic fields has been demonstrated by initial experimental observations. It will be shown that, in spite of a large launching loss over the whole frequency region, it is possible to obtain significant gain over a broad bandwidth. Also, it will be shown that the absolute instability, that usually occurs in the gyrotron traveling wave amplifier, can be avoided by operating at a high beam voltage. Finally, results on the effect of temperature on the performance of the device will be presented.
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