Research of Broadband Coaxial-to-Rectangular Waveguide End Launcher Antenna Element

LIU Hao; LU Jia-guo; HUANG Nian-yun; FAN De-sen

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Research of Broadband Coaxial-to-Rectangular Waveguide End Launcher Antenna Element

更新时间：2025-07-16

- Research of Broadband Coaxial-to-Rectangular Waveguide End Launcher Antenna Element
- Acta Electronica Sinica Vol. 31, Issue 9, Pages: 1365-1367(2003)
- 作者机构：
  
  1. 中国科学技术大学,安徽,合肥,230027
  2. 中国电子科技集团第38所,安徽,合肥,230031
  3. 合肥工业大学,安徽,合肥,230001
  4. 中国科学技术大学安徽合肥,230027
  5. 中国电子科技集团第38所安徽合肥,230031
  6. 合肥工业大学安徽合肥,230001
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN95
- Published：2003
- 稿件说明：
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LIU Hao, LU Jia-guo, HUANG Nian-yun, et al. Research of Broadband Coaxial-to-Rectangular Waveguide End Launcher Antenna Element[J]. Acta Electronica Sinica, 2003, 31(9): 1365-1367.
DOI：

LIU Hao, LU Jia-guo, HUANG Nian-yun, et al. Research of Broadband Coaxial-to-Rectangular Waveguide End Launcher Antenna Element[J]. Acta Electronica Sinica, 2003, 31(9): 1365-1367. DOI：

摘要

端馈式同轴矩形波导作为同轴波导变换

前人已经作了很详细的分析计算.由于端馈式同轴矩形波导与自由空间匹配困难

它很少用作辐射天线单元.本文用环耦合法和FDTD法对这种三维非均匀天线单元结构的特性进行了深入的研究

不仅减少了计算时间和空间

而且提高了计算精确性

得到这种相控阵天线单元的辐射方向图和驻波特性曲线

并进行了实验验证

解决了端馈式同轴矩形波导与自由空间的匹配问题.研究表明该种相控阵天线单元具有带宽宽、大扫描角的特点

可以广泛的用于地面、机载和星载相控阵雷达或者通信系统.

Abstract

Coaxial-to-rectangular waveguide transition of end launcher has been analyzed and computed detailedly.But the coaxial-to-rectangular waveguide is rarely used as a radiation element for it is difficult to match with free space.This paper applies both loop coupling approach and FDTD method to analyze the three-dimension non-even antenna element

not only reduces computing time and volume

but also improves the accuracy

then gets the radiation pattern and VSWR characteristic figure

proves it with experiment

and solves the match problem of free space.The research proves that this phased array radar element has characters of broadband、big scanning angle

which can be used in ground、airborne and satellite phased array radar or communication system.

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