北京航空航天大学学报 ›› 2008, Vol. 34 ›› Issue (09): 1109-1112.

• 论文 • 上一篇    下一篇

短毫米波段波纹喇叭天线的新工艺

白冰,苗俊刚,崔延军   

  1. 北京航空航天大学 电子信息工程学院, 北京 100191
  • 收稿日期:2007-09-24 出版日期:2008-09-30 发布日期:2010-09-17
  • 作者简介:白 冰(1982-),男,山东泰安人,硕士生,baibing_2005@163.com.
  • 基金资助:

    国家自然科学基金资助项目(40476061);教育部"新世纪优秀人才支持计划"资助项目

Novel technique to manufacture short millimeter wave band corrugated horn antenna

Bai Bing, Miao Jungang, Cui Yanjun   

  1. School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2007-09-24 Online:2008-09-30 Published:2010-09-17

摘要: 由于传统的机械加工精度的限制,在短毫米波段准光网络中,用作高斯馈源的波纹喇叭天线的设计加工成为难题.根据用户对高斯波束的参数要求提出了波纹喇叭天线的尺寸设计方案,采用了一种节约计算资源的模式匹配算法对包含大量波纹周期的波纹喇叭天线进行数值预测.针对短毫米波段波纹喇叭天线物理尺寸小、加工难度大的问题,提出了"迭片套装"法的加工工艺,即通过加工一系列圆环状波纹片和合理的工装结构而组装成完整的波纹喇叭天线.采用此工艺分别加工了工作在5mm和3mm波段的波纹喇叭天线,对其电性能进行了测试,并与数值计算结果进行了对比.

Abstract: In short-millimeter band quasi-optical network, it is a difficult problem to design and manufacture corrugated horn antennas acting as Gaussian feeds because of the accuracy of classical manufacture methods. The dimension design methods for corrugated horns were presented in term of the expected Gaussian beam parameters. The mode-matching (MM) method was carried out to numerically predict the performance of corrugated horns comprising large numbers of corrugation ridges and slots. A novel method was proposed to overcome the manufacture difficulties in short millimeter-wave band. The solution is to make the horn in a number of separate sections (either slot or ridge ring) and join them together with appropriate configuration. Two corrugated horns working respectively at 5mm and 3mm bands were realized in this technique. Finally, the performance of the two antennas was measured and the results were compared with the numerical data.

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