| 遗传算法优化设计超宽带天线 |
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| 引用本文： | 盛洁,杨雪霞,孙江涛.遗传算法优化设计超宽带天线[J].上海大学学报(自然科学版),2008,14(4):346-348. |
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| 作者姓名： | 盛洁 杨雪霞 孙江涛 |
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| 作者单位： | 上海大学 通信与信息工程学院，上海 200072 |
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| 基金项目： | 上海市重点学科建设项目 |
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| 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.
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| 关 键 词： | 超宽带天线 时域有限差分法（FDTD） 遗传算法 |
| 收稿时间： | 2007-06-06 |
Design of UWB Antenna Using Genetic Algorithm Optimization |
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| SHENG Jie,YANG Xue-xia,SUN Jiang-tao.Design of UWB Antenna Using Genetic Algorithm Optimization[J].Journal of Shanghai University(Natural Science),2008,14(4):346-348. |
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| Authors: | SHENG Jie YANG Xue-xia SUN Jiang-tao |
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| Institution: | School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China |
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| 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. |
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| Keywords: | finite-different time-domain (FDTD) ultra wide-band
(UWB) antenna genetic algorithm (GA) |
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