UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

基于时域有限差分的微放电仿真算法 = Multipactor simulation algorithm based on finite difference in time domain

Zhang, J; You, J; Wang, H; Li, Y; Cui, W; Cui, T; (2017) 基于时域有限差分的微放电仿真算法 = Multipactor simulation algorithm based on finite difference in time domain. Zhongguo Kongjian Kexue Jishu = Chinese Space Science and Technology , 37 (2) pp. 89-95. 10.16708/j.cnki.1000-758X.2017.0036. Green open access

[thumbnail of 2018 Multipactor simulation algorithm based on finite difference in time domain.pdf] Text
2018 Multipactor simulation algorithm based on finite difference in time domain.pdf - Published Version

Download (5MB)

Abstract

为克服传统微放电阈值预测方法建模粗糙、精度低的缺点,提高阀值预测精度和效率,研 究了基于时域有限差分的精确微放电阀值预测算法。基于时域有限差分算法和粒子追踪算法,通过 时空网格自洽互耦实现复杂结构微波器件微放电阈值准确计算。其中,共形和并行算法是提高微放 电仿真精度和效率的关键。文章基于空间蛙跳策略实现了基于时域有限差分的微放电仿真算法,利 用算法分析了典型微波器件的微放电阈值,仿真与实验结果吻合良好,误差小于0灡3dB;同时,并 行效率最高可达83%,验证了算法的准确性和高效性。/ Traditional multipactor prediction method based on plane approximation is fast but inaccurate, which cannot meet the electrical performance design requirements when devices become more and more complex. The finite difference time domain algorithm is one of the most popular methods in the computational electromagnetics. The particle tracing algorithm is a numerical method based on the Newton's force law. The two algorithms can be self-consistently combined by the discrete mesh in both time and space domains, which can be used to predict the multipactor breakdown threshold. In addition, the conformal and parallelizing technologies were well studied. Multipactor breakdown of classic microwave device was analyzed by the developed algorithm. The error is 0.3 dB compared with the experiments and the maximum parallel efficiency is 83%, which demonstrate the accuracy and efficiency of the algorithm.

Type: Article
Title: 基于时域有限差分的微放电仿真算法 = Multipactor simulation algorithm based on finite difference in time domain
Open access status: An open access version is available from UCL Discovery
DOI: 10.16708/j.cnki.1000-758X.2017.0036
Publisher version: http://zgkj.cast.cn/EN/abstract/abstract10992.shtm...
Language: Chinese
Additional information: © 2017, Editorial Office of Journal of Chinese Space Science and Technology. All right reserved. This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: 时域有限差分;粒子追踪;微放电;共形;并行 / finite difference time domain; particle tracing; multipactor; conformal; parallelization
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10058983
Downloads since deposit
156Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item