Thermal Analysis of Electron Gun for Terahertz Traveling Wave Tubes Based on L-BFGS Algorithm

被引：3

作者：

Ou, Yue ^{[1
]}

Liu, Wenxin ^{[1
]}

Yang, Long Long ^{[1
]}

Zhao, Zhengyuan ^{[1
]}

Wei, Yanyu ^{[2
]}

Yang, Ziqiang ^{[2
]}

机构：

[1] Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100000, Peoples R China

[2] Sch UESTC, Chengdu 610054, Peoples R China

来源：

2020 IEEE MTT-S INTERNATIONAL CONFERENCE ON NUMERICAL ELECTROMAGNETIC AND MULTIPHYSICS MODELING AND OPTIMIZATION (NEMO 2020) | 2020年

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

L-BFGS algorithm; Electron Gun; Thermal Simulation; Traveling-wave Tube (TWT);

D O I：

10.1109/NEMO49486.2020.9343503

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this article, we propose a classical optimization algorithm named L-BFGS to simulate the thermal behavior of electron gun for terahertz traveling-wave tubes. The L-BFGS algorithm, as a variation of Quasi-Newton optimization method, expert in dealing with the unconstrained optimization problems while keeping the stability of the calculation. Efficiency and accuracy of L-BFGS algorithm are verified by modeling the thermal behavior of an actual electron gun on MATLAB platform successfully with no breakdown. According to the simulation results, this method performs better than some reference methods in teens of computational memory usage and time cost. Our numerical conclusions indicate that it is promising for thermal analysis of electron gun, which would be useful for researchers during the design phase.

引用

页数：4

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