| UHF截断单极子天线及其匹配网络设计 |
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| 引用本文： | 张俊睿,肖绍球,丁霄,唐明春,柏艳英.UHF截断单极子天线及其匹配网络设计[J].应用科学学报,2011,29(4):423-427. |
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| 作者姓名： | 张俊睿 肖绍球 丁霄 唐明春 柏艳英 |
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| 作者单位： | 电子科技大学物理电子学院，成都610054 |
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| 基金项目： | 国家自然科学基金(No.60872034,No.60971029); 教育部新世纪优秀人才计划基金(No.NCET070154); 国防预研基金(No.ZJ10DZ02111); 航空科技基金(No.20090180007)资助 |
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| 摘 要： | 设计了一个工作在UHF频段的宽带单极子天线. 先将单极子天线截为两段并串联起来，以改善天线频率高端的水平方向增益，然后利用无耗LC梯形宽带匹配网络在100?400 MHz对天线进行匹配. 用CST2009仿真软件得到优化的天线截断位置和匹配网络元件值等参数. 对加载匹配网络前后的截断天线反射系数进行了测试，结果与仿真结果吻合较好. 研究表明，加载匹配网络后的天线系统水平增益在100?350 MHz频段大于0 dBi，在350?400 MHz频段介于?7 ?0 dBi之间. 反射系数S11在100?400 MHz频段均小于10 dB，匹配网络效率超过60%.
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| 关 键 词： | 截断 宽带匹配网络 无耗 高水平增益 高效率 |
| 收稿时间： | 2010-11-24 |
| 修稿时间： | 2010-12-30 |
Design of UHF Truncated Monopole Antenna and Its Matching Network |
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| ZHANG Jun-rui,XIAO Shao-qiu,DING Xiao,TANG Ming-chun,BAI Yan-ying.Design of UHF Truncated Monopole Antenna and Its Matching Network[J].Journal of Applied Sciences,2011,29(4):423-427. |
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| Authors: | ZHANG Jun-rui XIAO Shao-qiu DING Xiao TANG Ming-chun BAI Yan-ying |
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| Institution: | School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | A broadband monopole antenna working in UHF band is designed.A monopole antenna is cut into two parts.They are connected in series.This step improves the horizontal gain in the upper part of the operating band.A lossless LC ladder is then used to match the antenna impedance from 100 MHz to 400 MHz. The truncating position and circuit element parameters in the matching network are obtained using CST2009 optimization.Reflection coefficients of the truncated antennas both with and without the matching network ... |
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| Keywords: | truncation broadband matching network lossless high horizontal gain high efficiency |
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