| 一种双模圆极化贴片天线设计 |
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| 引用本文： | 郑宏兴,李智峰,李晶晶.一种双模圆极化贴片天线设计[J].天津工程师范学院学报,2011,21(4). |
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| 作者姓名： | 郑宏兴 李智峰 李晶晶 |
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| 作者单位： | 天津职业技术师范大学天线与微波技术研究所,天津,300222 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为满足卫星导航系统的要求，采用单点馈电叠层贴片技术，设计了一种双频圆极化宽波束天线；采用隐式的时域有限差分方法，对天线进行全波仿真，分析了影响匹配性能的结构参数，并通过在贴片的一组对边上开矩形缝隙，微调天线谐振频率，同时实现了阻抗带宽和轴比带宽相吻合；总结出改善天线双频匹配特性的方法，解决了双频段同时达到最佳匹配的问题。
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| 关 键 词： | 双频 圆极化 贴片天线 时域有限差分 |
Design of dual-band circular polarization patch antenna |
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| ZHENG Hong-xing,LI Zhi-feng,LI Jing-jing.Design of dual-band circular polarization patch antenna[J].Journal of Tianji University of Technology and Education,2011,21(4). |
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| Authors: | ZHENG Hong-xing LI Zhi-feng LI Jing-jing |
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| Institution: | ZHENG Hong-xing,LI Zhi-feng,LI Jing-jing(Institute of Antenna and Microwave Techniques,Tianjin University of Technology and Education,Tianjin 300222,China) |
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| Abstract: | To satisfy the satellite navigation system, a wide-beam antenna is designed with dual-frequency and circular polarization by using a single feeded two truncated patches. For these designing processes, an alternating- direction implicit finite-difference time-domain method has been used to simulate the antenna with full wave. The geomitrie parameters of the antenna is analyzed which effects the match properties. Two rectangular patches are slotted to tune the fequency, both impedance and axis-ratio bandwidth can be matched concurrence. Dualband matching performance has been realized at the same time. Three operational modes are studied, and methods improved the match properties of the dualband antenna have been concluded. The design parameters has been optimilized. |
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| Keywords: | dual-frequency circular polarization patch antenna finite-difference time-domain |
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