| 超宽带TEM天线的数值模拟 |
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| 引用本文： | 王建国,田春明,刘小龙,葛德彪.超宽带TEM天线的数值模拟[J].强激光与粒子束,2001,13(4):493-497. |
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| 作者姓名： | 王建国 田春明 刘小龙 葛德彪 |
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| 作者单位： | 1．西北核技术研究所，陕西 西安 710024；2. 西安电子科技大学物理系，陕西 西安，710071 |
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| 基金项目： | 国家 8 63高功率微波技术领域资助项目 ( 863 -4 10 -7) |
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| 摘 要： | 用数值方法研究了超宽带电磁脉冲源经同轴型传输线输出到TEM天线上的发射问题。TEM喇叭天线的前端是平行板传输线。用时域有限差分方法模拟了超宽带电磁脉冲在平行板传输线和TEM波喇叭中的传输，给出了天线的输入阻抗和电压驻波比随频率的变化关系、天线的辐射场分布以及天线辐射的能量方向图等。
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| 关 键 词： | 超宽带 TEM天线 输入阻抗 时域有限差分 方向图 |
| 文章编号： | 1001-4322(2001)04-0493-05 |
| 收稿时间： | 2001/3/15 |
| 修稿时间： | 2001年3月15日 |
Numerical simulations of ultrawide band TEM antennas |
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| WANG Jian guo ,TIAN Chun ming ,LIU Xiao long ,GE De biao.Numerical simulations of ultrawide band TEM antennas[J].High Power Laser and Particle Beams,2001,13(4):493-497. |
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| Authors: | WANG Jian guo TIAN Chun ming LIU Xiao long GE De biao |
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| Institution: | 1.Northwest Institute of Nuclear Technology，P.O.Box 69-15, Xi’an 710024, China,China;2. Department of Physics, Xidian University, Xi’an 710071, China |
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| Abstract: | This paper presents numerical ly the radiation processes of the ultrawide band electromagnetic pulse emi tted from the TEM antenna fed through the coaxial transmission line. The front end of the TEM horn antenna is a parallel plate transmission line. The finite difference time domain method is adopted t o simulate the processes of transmission in the parallel plate transmission line and TEM horn. For the TEM horn, this paper presents the input impedance and voltage standing wave ratio as a function of frequencies. The radiated field dis tribution and energy pattern are also provided. |
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| Keywords: | ultrawide band TEM antenna in put impedance finite difference time domain pattern |
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