C. Baik, S. Jeon, D. Kim, G. Park, N. Sato, K. Yokoo
{"title":"两级锥形陀螺行波管放大器的三次谐波倍频","authors":"C. Baik, S. Jeon, D. Kim, G. Park, N. Sato, K. Yokoo","doi":"10.1109/IVELEC.2004.1316196","DOIUrl":null,"url":null,"abstract":"The third harmonic frequency multiplication is experimentally verified using a two-stage tapered gyrotron traveling-wave tube amplifier in low-power operation. The third harmonic frequency multiplication is predicted and investigated using a self-consistent large-signal theory and a particle-in-cell code simulation. Both results show a good agreement in frequency multiplication and power amplification. The interaction between a 30 kV axis-encircling electron beam with a drive signal in the tapered waveguide of the input stage modulates the electron beam at the fundamental cyclotron harmonic, then the third harmonic component of the modulated beam current is chosen to be extracted in the tapered output stage. In the proof-of-principle experiment, X-band drive signals from 10.6 to 12 GHz are multiplied by three times to be Ka-band output frequencies from 31.8 to 36 GHz, showing consistent results with theoretical predictions when a 30 kV, 160 mA electron beam is used.","PeriodicalId":283559,"journal":{"name":"Fifth IEEE International Vacuum Electronics Conference (IEEE Cat. No.04EX786)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Third harmonic frequency multiplication of a two-stage tapered gyro-TWT amplifier\",\"authors\":\"C. Baik, S. Jeon, D. Kim, G. Park, N. Sato, K. Yokoo\",\"doi\":\"10.1109/IVELEC.2004.1316196\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The third harmonic frequency multiplication is experimentally verified using a two-stage tapered gyrotron traveling-wave tube amplifier in low-power operation. The third harmonic frequency multiplication is predicted and investigated using a self-consistent large-signal theory and a particle-in-cell code simulation. Both results show a good agreement in frequency multiplication and power amplification. The interaction between a 30 kV axis-encircling electron beam with a drive signal in the tapered waveguide of the input stage modulates the electron beam at the fundamental cyclotron harmonic, then the third harmonic component of the modulated beam current is chosen to be extracted in the tapered output stage. In the proof-of-principle experiment, X-band drive signals from 10.6 to 12 GHz are multiplied by three times to be Ka-band output frequencies from 31.8 to 36 GHz, showing consistent results with theoretical predictions when a 30 kV, 160 mA electron beam is used.\",\"PeriodicalId\":283559,\"journal\":{\"name\":\"Fifth IEEE International Vacuum Electronics Conference (IEEE Cat. No.04EX786)\",\"volume\":\"13 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-04-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fifth IEEE International Vacuum Electronics Conference (IEEE Cat. No.04EX786)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IVELEC.2004.1316196\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fifth IEEE International Vacuum Electronics Conference (IEEE Cat. No.04EX786)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IVELEC.2004.1316196","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Third harmonic frequency multiplication of a two-stage tapered gyro-TWT amplifier
The third harmonic frequency multiplication is experimentally verified using a two-stage tapered gyrotron traveling-wave tube amplifier in low-power operation. The third harmonic frequency multiplication is predicted and investigated using a self-consistent large-signal theory and a particle-in-cell code simulation. Both results show a good agreement in frequency multiplication and power amplification. The interaction between a 30 kV axis-encircling electron beam with a drive signal in the tapered waveguide of the input stage modulates the electron beam at the fundamental cyclotron harmonic, then the third harmonic component of the modulated beam current is chosen to be extracted in the tapered output stage. In the proof-of-principle experiment, X-band drive signals from 10.6 to 12 GHz are multiplied by three times to be Ka-band output frequencies from 31.8 to 36 GHz, showing consistent results with theoretical predictions when a 30 kV, 160 mA electron beam is used.
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