基于双共聚焦腔的0.33太赫兹二次谐波回旋管仿真

2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI:10.1109/IVEC45766.2020.9520443

Xiaotong Guan, W. Fu, Jiayi Zhang, Dun Lu, Xiangliang Zheng, Yang Yan

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引用次数: 1

摘要

共焦圆柱波导具有功率容量大、模密度低等优点，为设计高次谐波太赫兹回旋管提供了有利条件。以提高准光回旋管的波束相互作用效率为出发点，提出了一种基于双共聚焦波导的新型回旋管波束相互作用结构，并进行了理论分析。设计了一种基于双共焦腔的0.33太赫兹二次谐波回旋管振荡器，并用PIC代码进行了仿真。结果表明，双共聚焦腔能够提高准光回旋管的输出功率和相互作用效率。并结合仿真结果对双共聚焦波导的模式特性进行了研究。

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Simulation of a 0.33-THz Second Harmonic Gyrotron Based on Double Confocal Cavity

Confocal cylindrical waveguide performs many good characters, such as big power capacity and low mode density, which are good for designing high harmonic terahertz gyrotron. Motivated by improving beam-wave interaction efficiency of quasi-optical gyrotron, a novel gyrotron beam-wave interaction structure based on double confocal waveguide has been proposed and theoretically analyzed in this paper. A 0.33 THz second harmonic gyrotron oscillator based on double confocal cavity has been designed and simulated by PIC code. It is indicated that double confocal cavity is able to enhance the output power and the interaction efficiency of quasi-optical gyrotron. Besides, the mode characteristic of double confocal waveguide is investigated with the simulation results.

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来源期刊

2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)

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