物理学报Issue(23)：238401-1-238401-9,9.DOI:10.7498/aps.62.238401
高功率回旋振荡管Denisov型辐射器的研究
Stady on a high efficient Denisov-type launcher for high-power gyrotron oscillators
摘要
Abstract
In this paper, a high-efficiency Denisov-type launcher, a hardcore of quasi-optical mode converters in high-power gyrotron oscil-lators, is investigated. Based on integral expression of Bessel functions and geometric optics, the propagation of EM wave in circular waveguides, the syntheses of amplitude and phase of nine modes are analyzed in detail. A generalized method for designing the launch-er with a dimpled waveguide wall operating in different modes is demonstrated. This method shows how to select a set of appropriate coupled modes to synthesize the Gaussian-like distribution on the inner wall of the launcher. A program is developed and its accuracy is confirmed by a high-power gyrotron at 140 GHz, in TE28,8 mode theoretically. Numerical calculations show a good agreement with reported results.关键词
回旋管/准光辐射器/耦合模理论/模式变换Key words
gyrotron/quasi-optical launcher/coupled mode theory/mode transformation引用本文复制引用
王虎,沈文渊,耿志辉,徐寿喜,王斌,杜朝海,刘濮鲲..高功率回旋振荡管Denisov型辐射器的研究[J].物理学报,2013,(23):238401-1-238401-9,9.基金项目
国家自然科学基金(批准号:61072026,60971072,61102026,61072024)资助的课题.*Project supported by the National Natural Science Foundation of China (Grant Nos.61072026,60971072,61102026,61072024) （批准号:61072026,60971072,61102026,61072024）
