{"title":"介质支撑的v波段双片束行波管菱形弯曲线慢波结构","authors":"Yuxin Wang, Yang Dong, Shaomeng Wang, Y. Gong","doi":"10.1109/piers55526.2022.9793127","DOIUrl":null,"url":null,"abstract":"A novel dual-beam rhombus-shaped meander line slow wave structure (DS-RSML SWS) is proposed in this paper, which is suitable for low-voltage operation and device miniaturization. The planar SWS is supported by two dielectric rods from both sides, making it suitable for dual-beam operation. The high frequency and transmission characteristics of the SWS are investigated. The input-output couplers connect the SWS with the standard waveguide by adopting step waveguide. The backward-wave oscillation is effectively suppressed by negative pitch tapering. Particle-in-cell (PIC) simulation results show that the output power of the rhombus-shaped SWS can reach 83 W at 58 GHz, under the conditions of a dual-sheet beam (7.7kV, 0.1 A) and input power of 0.1 W, with gain and electron efficiency of 29 dB and 10.8%, respectively.","PeriodicalId":422383,"journal":{"name":"2022 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dielectric-supported Rhombus-shaped Meander-line Slow-wave Structure for a V-band Dual-sheet Beam Traveling Wave Tube\",\"authors\":\"Yuxin Wang, Yang Dong, Shaomeng Wang, Y. Gong\",\"doi\":\"10.1109/piers55526.2022.9793127\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A novel dual-beam rhombus-shaped meander line slow wave structure (DS-RSML SWS) is proposed in this paper, which is suitable for low-voltage operation and device miniaturization. The planar SWS is supported by two dielectric rods from both sides, making it suitable for dual-beam operation. The high frequency and transmission characteristics of the SWS are investigated. The input-output couplers connect the SWS with the standard waveguide by adopting step waveguide. The backward-wave oscillation is effectively suppressed by negative pitch tapering. Particle-in-cell (PIC) simulation results show that the output power of the rhombus-shaped SWS can reach 83 W at 58 GHz, under the conditions of a dual-sheet beam (7.7kV, 0.1 A) and input power of 0.1 W, with gain and electron efficiency of 29 dB and 10.8%, respectively.\",\"PeriodicalId\":422383,\"journal\":{\"name\":\"2022 Photonics & Electromagnetics Research Symposium (PIERS)\",\"volume\":\"2 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-04-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2022 Photonics & Electromagnetics Research Symposium (PIERS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/piers55526.2022.9793127\",\"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 Photonics & Electromagnetics Research Symposium (PIERS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/piers55526.2022.9793127","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Dielectric-supported Rhombus-shaped Meander-line Slow-wave Structure for a V-band Dual-sheet Beam Traveling Wave Tube
A novel dual-beam rhombus-shaped meander line slow wave structure (DS-RSML SWS) is proposed in this paper, which is suitable for low-voltage operation and device miniaturization. The planar SWS is supported by two dielectric rods from both sides, making it suitable for dual-beam operation. The high frequency and transmission characteristics of the SWS are investigated. The input-output couplers connect the SWS with the standard waveguide by adopting step waveguide. The backward-wave oscillation is effectively suppressed by negative pitch tapering. Particle-in-cell (PIC) simulation results show that the output power of the rhombus-shaped SWS can reach 83 W at 58 GHz, under the conditions of a dual-sheet beam (7.7kV, 0.1 A) and input power of 0.1 W, with gain and electron efficiency of 29 dB and 10.8%, respectively.
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