{"title":"低磁场工作下双频RBWO的设计与PIC仿真","authors":"V. Reddy, P. Verma, M. Thottappan","doi":"10.1109/WAMS54719.2022.9847781","DOIUrl":null,"url":null,"abstract":"A dual-band Relativistic Backward Wave Oscillator (RBWO) has been designed and simulated under the lowest magnetic field using a finite difference time domain (FDTD) based 3D electromagnetic code. The dual-band oscillations were obtained by cascading two slow-wave structures (SWS) with the same transverse dimensions separated by a drift section. To reflect the dual-band microwave of the backward TM01 mode into a forward TM01 wave towards the collector, a rectangular resonant reflector (RR) was used. The effect of cyclotron and Cerenkov absorption on the dual-band frequency generation and average RF output power was presented to identify the operating magnetic field. An average RF output power ∼275 MW was predicted at both ∼3.6 GHz and ∼4.5 GHz with a magnetic field of ∼0.25 T.","PeriodicalId":410781,"journal":{"name":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Design and PIC Simulation of Dual-band RBWO Under Low Magnetic Field Operation\",\"authors\":\"V. Reddy, P. Verma, M. Thottappan\",\"doi\":\"10.1109/WAMS54719.2022.9847781\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A dual-band Relativistic Backward Wave Oscillator (RBWO) has been designed and simulated under the lowest magnetic field using a finite difference time domain (FDTD) based 3D electromagnetic code. The dual-band oscillations were obtained by cascading two slow-wave structures (SWS) with the same transverse dimensions separated by a drift section. To reflect the dual-band microwave of the backward TM01 mode into a forward TM01 wave towards the collector, a rectangular resonant reflector (RR) was used. The effect of cyclotron and Cerenkov absorption on the dual-band frequency generation and average RF output power was presented to identify the operating magnetic field. An average RF output power ∼275 MW was predicted at both ∼3.6 GHz and ∼4.5 GHz with a magnetic field of ∼0.25 T.\",\"PeriodicalId\":410781,\"journal\":{\"name\":\"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)\",\"volume\":\"49 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/WAMS54719.2022.9847781\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WAMS54719.2022.9847781","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Design and PIC Simulation of Dual-band RBWO Under Low Magnetic Field Operation
A dual-band Relativistic Backward Wave Oscillator (RBWO) has been designed and simulated under the lowest magnetic field using a finite difference time domain (FDTD) based 3D electromagnetic code. The dual-band oscillations were obtained by cascading two slow-wave structures (SWS) with the same transverse dimensions separated by a drift section. To reflect the dual-band microwave of the backward TM01 mode into a forward TM01 wave towards the collector, a rectangular resonant reflector (RR) was used. The effect of cyclotron and Cerenkov absorption on the dual-band frequency generation and average RF output power was presented to identify the operating magnetic field. An average RF output power ∼275 MW was predicted at both ∼3.6 GHz and ∼4.5 GHz with a magnetic field of ∼0.25 T.
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