| 共面波导馈电的宽带矩形边蝶形缝隙天线 |
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| 引用本文： | 苏晓恩,薄亚明.共面波导馈电的宽带矩形边蝶形缝隙天线[J].江南大学学报(自然科学版),2005,4(5):465-468. |
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| 作者姓名： | 苏晓恩 薄亚明 |
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| 作者单位： | 江南大学,通信与控制工程学院,江苏,无锡,214122 |
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| 基金项目： | 教育部国际合作交流司留学回国人员科研启动基金项目（教外司留2001,498号）资助课题. |
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| 摘 要： | 为了展宽平面缝隙天线的带宽,设计了一种新型的共面波导馈电的宽带缝隙天线,并采用基于时域有限差分法的软件进行了分析.通过对天线尺寸参数进行优选,有效展宽了该缝隙天线的阻抗带宽,其-10 dB阻抗带宽可达67%.同时该天线在所计算的频带内,具有较稳定的方向图.另外还给出了该种天线与其它结构近似天线的比较数据.计算结果表明：采用这种新型天线结构和优选的尺寸参数,可以明显地展宽缝隙天线的带宽.
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| 关 键 词： | 缝隙天线 共面波导 阻抗带宽 |
| 文章编号： | 1671-7147（2005）05-0465-04 |
| 收稿时间： | 2004-10-09 |
| 修稿时间： | 2004-10-092004-11-12 |
A Broad-Band CPW-Fed Rectangular-Edged Bow-Tie Slot Antenna |
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| SU Xiao-en,BO Ya-ming.A Broad-Band CPW-Fed Rectangular-Edged Bow-Tie Slot Antenna[J].Journal of Southern Yangtze University:Natural Science Edition,2005,4(5):465-468. |
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| Authors: | SU Xiao-en BO Ya-ming |
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| Institution: | School of Communication and Control Engineering, Southern Yangtze University, Wuxi 214122, China |
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| Abstract: | In order to broaden the bandwidth of planar slot antennas, a novel CPW-fed slot antenna is presented and analysised with a software tool based on the finite difference time domain method in this paper. By optimizing the sizes of the proposed slot antenna, a -10dB impedance bandwidth of 67% can be obtained. It is shown from the numerical results that the proposed slot antenna has approximate constant radiation patterns within the bandwidth. The comparison results between this antenna and some other antennas with similar structureslare also presented. The numerical results demonstrate the advantages of the novel CPW-fed slot antenna. |
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| Keywords: | slot antenna coplanar waveguide(CPW) impedance bandwidth |
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