中国物理B ›› 2017, Vol. 26 ›› Issue (7): 74101-074101.doi: 10.1088/1674-1056/26/7/074101

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Asymmetrical mirror optimization for a 140 GHz TE22, 6 quasi-optical mode converter system

Dong Xia(夏冬), Ming Jin(金铭), Ming Bai(白明)   

  1. 1 School of Electronics and Information Engineering, Beihang University, Beijing 100191, China;
    2 Institute of Remote Sensing and Digital Earth, State Key Laboratory of Remote Sensing, Beijing 100101, China
  • 收稿日期:2016-11-11 修回日期:2017-03-29 出版日期:2017-07-05 发布日期:2017-07-05
  • 通讯作者: Ming Bai E-mail:mbai@buaa.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No.61671032).

Asymmetrical mirror optimization for a 140 GHz TE22, 6 quasi-optical mode converter system

Dong Xia(夏冬)1, Ming Jin(金铭)1,2, Ming Bai(白明)1   

  1. 1 School of Electronics and Information Engineering, Beihang University, Beijing 100191, China;
    2 Institute of Remote Sensing and Digital Earth, State Key Laboratory of Remote Sensing, Beijing 100101, China
  • Received:2016-11-11 Revised:2017-03-29 Online:2017-07-05 Published:2017-07-05
  • Contact: Ming Bai E-mail:mbai@buaa.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No.61671032).

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摘要： We introduce an asymmetrical mirror design to a 140 GHz TE22,6 quasi-optical (QO) mode converter system to correct the asymmetry of the beam's field distribution caused by the Denisov launcher. By such optimization, the output beam with better symmetrical distribution is obtained at the system's output window. Based on the calculated results, the QO mode converter system's performance is already satisfying without iterative phase correction. Scalar and vector correlation coefficients between the output beam and the fundamental Gaussian beam are respectively 98.4% and 93.0%, while the total power transmission efficiency of the converter system is 94.4%. The assistance of optical ray tracing to the design of such QO mode converters is introduced and discussed as well.

关键词: asymmetrical mirror design, optical ray tracing, quasi-optical mode converter

Abstract: We introduce an asymmetrical mirror design to a 140 GHz TE22,6 quasi-optical (QO) mode converter system to correct the asymmetry of the beam's field distribution caused by the Denisov launcher. By such optimization, the output beam with better symmetrical distribution is obtained at the system's output window. Based on the calculated results, the QO mode converter system's performance is already satisfying without iterative phase correction. Scalar and vector correlation coefficients between the output beam and the fundamental Gaussian beam are respectively 98.4% and 93.0%, while the total power transmission efficiency of the converter system is 94.4%. The assistance of optical ray tracing to the design of such QO mode converters is introduced and discussed as well.

Key words: asymmetrical mirror design, optical ray tracing, quasi-optical mode converter

中图分类号:  (Electromagnetic wave propagation; radiowave propagation)

  • 41.20.Jb
42.15.Dp (Wave fronts and ray tracing)