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双共焦波导回旋行波管高频结构的电磁特性研究(英文)

发布时间:2021-12-02 03:58
  研究了双共焦波导回旋行波管高频结构的电磁特性。根据惠根斯原理的光衍射理论,分析得出双共焦波导中的两类本征模式(叠加模和环形模)对应的截止频率和场分布情况。理论分析结果与商用仿真软件CST的仿真结果一致。其中用作回旋行波管工作模式的"反相叠加TE06模"的损耗明显小于其他模式,这种不同模式损耗不同的特性将有效抑制竞争模式带来的寄生振荡。双共焦波导的模式密度略大于传统单共焦波导的模式密度,但是明显小于圆波导的模式密度,因此双共焦波导适合用作回旋行波管的高频结构。 

【文章来源】:红外与毫米波学报. 2020,39(05)北大核心EISCICSCD

【文章页数】:6 页

【部分图文】:

双共焦波导回旋行波管高频结构的电磁特性研究(英文)


图3单共焦波导横截面几何结构图??

波导,构型,两类模式,环形


tions,?as?shown?in?Fig.?2(b).??(a)??(b)??Fig.?2?The?diagram?of?the?modes?in?a?double?confocal?wave???guide?(a)?Superposition?mode:?(b)?Ring?mode??图2双共焦波导中两类模式的构成形式(a)叠加模的构型;??(b)环形模的构型??Fig.?1?3-D?configuration?of?a?double?confocal?waveguide??图1双共焦波导的3维结构??In?order?to?utilize?a?double?confocal?waveguide?as?a??beam-wave?interaction?structure?in?a?gyro-TWT,?it?is?nec???essary?to?make?clear?the?eigenmodes?and?their?corre???sponding?electromagnetic?(EM)?characteristics?in?a?dou???ble?confocal?waveguide.?In?this?paper,?the?EM?character???istics?of?a?doul)le?confocal?waveguide?for?a?gyro-TWT?will??be?investigated?in?details.?The?rest?of?this?paper?is?orga???nized?as?following.?The?investigation?on?eigenmodes?in?a??double

两类模式,构型,波导,形式


he?consecutive?reflection?of?the??field?among?four?mirrors?in?clockwise?or?counterclockwise??directions,?as?shown?in?Fig.?2(b).??(a)??(b)??Fig.?2?The?diagram?of?the?modes?in?a?double?confocal?wave???guide?(a)?Superposition?mode:?(b)?Ring?mode??图2双共焦波导中两类模式的构成形式(a)叠加模的构型;??(b)环形模的构型??Fig.?1?3-D?configuration?of?a?double?confocal?waveguide??图1双共焦波导的3维结构??In?order?to?utilize?a?double?confocal?waveguide?as?a??beam-wave?interaction?structure?in?a?gyro-TWT,?it?is?nec???essary?to?make?clear?the?eigenmodes?and?their?corre???sponding?electromagnetic?(EM)?characteristics?in?a?dou???ble?confocal?waveguide.?In?this?paper,?the?EM?character???istics?of?a?doul)le?confocal?waveguide?for?a?gyro-TWT?will??be?investigated?in?details.


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