Finite-Difference Time-Domain Approach to the Analysis of Transient Electromagnetic Fields of Tapered Slot Antennas

周权; 郭开周; 李学清

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Finite-Difference Time-Domain Approach to the Analysis of Transient Electromagnetic Fields of Tapered Slot Antennas

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- Finite-Difference Time-Domain Approach to the Analysis of Transient Electromagnetic Fields of Tapered Slot Antennas
- Acta Electronica Sinica Issue 3, (1995)
- 作者机构：
  
  西安瞬态光学技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN820
- Published：1995
- 稿件说明：
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[1]周权,郭开周,李学清.用时域有限差分法对缝隙渐变天线的瞬态电磁场分析[J].电子学报,1995(03):49-54.

周权, 郭开周, 李学清. Finite-Difference Time-Domain Approach to the Analysis of Transient Electromagnetic Fields of Tapered Slot Antennas[J]. Acta Electronica Sinica, 1995, (3).
[1]周权,郭开周,李学清.用时域有限差分法对缝隙渐变天线的瞬态电磁场分析[J].电子学报,1995(03):49-54. DOI：

周权, 郭开周, 李学清. Finite-Difference Time-Domain Approach to the Analysis of Transient Electromagnetic Fields of Tapered Slot Antennas[J]. Acta Electronica Sinica, 1995, (3). DOI：

摘要

本文用时域有限差分（ＦＤＴＤ）法分析缝隙渐变天线，分析中对天线缝隙边缘场和薄天线衬底采取了特殊的处理方法，求天线的远区辐射场采用了ＦＤＴＤ中近场到远场的变换方法．本文计算出的缝隙渐变天线的辐射方向图和远区辐射场与实验结果比较一致，本文给出了超短电磁脉冲在天线上传播和辐射过程的瞬态直观图象，同时还研究了这种天线衬底厚度、几何尺寸及介电常数对其辐射特性及频带的影响．

Abstract

The finite-difference time-domain（FDTD） method is used to analyze the tapered slot antennas in this paper

here both special methods of modeling the thin dielectric sheets and of calculating the fields on narrow slot or near slot edge of the antennas are employed. By means of transformation from near zone to far zone the transient radiation fields are calculated. And a set of computed radiation patterns and transient pulse wave forms of the tapered slot antennas are presented

they are in good agreement with the experimental results reported else-where. Transient pictures of both propagation on the antenna and radiation from the antenna are presented. And the effect of substrate thickness

geometry and dielectric constant on radiation properties and bandwidth of exponentially tapered slot antennas is studied also in this paper.

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