上海大学学报(自然科学版)

• 通信与信息工程 • 上一篇    下一篇

遗传算法优化设计超宽带天线

盛洁,杨雪霞,孙江涛   

  1. 上海大学 通信与信息工程学院,上海 200072
  • 收稿日期:2007-06-06 修回日期:1900-01-01 出版日期:2008-08-27 发布日期:2008-08-27
  • 通讯作者: 杨雪霞

Design of UWB Antenna Using Genetic Algorithm Optimization

SHENG Jie,YANG Xue-xia,SUN Jiang-tao
  

  1. School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China
  • Received:2007-06-06 Revised:1900-01-01 Online:2008-08-27 Published:2008-08-27
  • Contact: YANG Xue-xia

摘要: 应用遗传算法优化设计一个满足超宽带频段的U型天线.该天线用阶梯结构改善U型天线的阻抗带宽,并以遗传算法与时域有限差分法(FDTD)相结合的方法进行优化,最终得到天线的尺寸.天线驻波比实测值在3.1~10.6 GHz频段内都小于2. E面、H面的仿真方向图表明该天线全向性能较好,仿真增益在3.3~6.0 dB范围内.

关键词: 超宽带天线, 时域有限差分法(FDTD), 遗传算法

Abstract: In this paper, the genetic algorithm (GA) optimization is applied to the design
of a U-type ultra wide-band (UWB) antenna. The ladder configuration is used to improve impedance bandwidth of the U type antenna. The genetic algorithm combined with finite-different time-domain (FDTD) is applied to optimize this antenna and get the antenna size. The measured VSWR is less than 2 from 3.1 GHz to 10.6 GHz. The designed antenna has a good radiation characteristic with the gain between 3.3~6.0 dB according to the simulation.

Key words: finite-different time-domain (FDTD), ultra wide-band
(UWB) antenna,
genetic algorithm (GA)

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