中国物理B ›› 2014, Vol. 23 ›› Issue (5): 59201-059201.doi: 10.1088/1674-1056/23/5/059201

• GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS • 上一篇    下一篇

Improved method for analyzing quasi-optical launchers

吴泽威, 李浩, 徐建华, 李天明, 李家胤   

  1. School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2013-08-26 修回日期:2013-10-10 出版日期:2014-05-15 发布日期:2014-05-15

Improved method for analyzing quasi-optical launchers

Wu Ze-Wei (吴泽威), Li Hao (李浩), Xu Jian-Hua (徐建华), Li Tian-Ming (李天明), Li Jia-Yin (李家胤)   

  1. School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2013-08-26 Revised:2013-10-10 Online:2014-05-15 Published:2014-05-15
  • Contact: Wu Ze-Wei E-mail:wzw.198704@163.com
  • About author:92.60.Ta; 41.20.Jb; 42.25.Fx

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摘要： An improved method for analyzing the radiation characteristic of the quasi-optical launcher is presented. The launcher is decomposed into an open-ended waveguide and a helical cut according to the proposed method. The radiation from the open-ended waveguide is obtained by using the Stratton-Chu formulation. The helical cut's radiation is calculated based on its current distribution, gained by several iterative computations, which helps to improve the calculation accuracy since the diffraction effect introduced by the helical cut is considered during the calculation. The proposed method is used to study different launches, and the results are compared with the existing results. Good agreement is achieved between the results obtained from our proposed method and the reported results. The present results provide an alternative for analysis and synthesis of the optical-mode converter.

关键词: gyrotron, quasi-optical launcher, Stratton-Chu formulation

Abstract: An improved method for analyzing the radiation characteristic of the quasi-optical launcher is presented. The launcher is decomposed into an open-ended waveguide and a helical cut according to the proposed method. The radiation from the open-ended waveguide is obtained by using the Stratton-Chu formulation. The helical cut's radiation is calculated based on its current distribution, gained by several iterative computations, which helps to improve the calculation accuracy since the diffraction effect introduced by the helical cut is considered during the calculation. The proposed method is used to study different launches, and the results are compared with the existing results. Good agreement is achieved between the results obtained from our proposed method and the reported results. The present results provide an alternative for analysis and synthesis of the optical-mode converter.

Key words: gyrotron, quasi-optical launcher, Stratton-Chu formulation

中图分类号:  (Electromagnetic wave propagation)

  • 92.60.Ta
41.20.Jb (Electromagnetic wave propagation; radiowave propagation) 42.25.Fx (Diffraction and scattering)