| 一种共面波导馈电的缝隙型超宽带天线 |
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| 引用本文： | 丁宇星,李洪飞,宗卫华,李山东.一种共面波导馈电的缝隙型超宽带天线[J].现代雷达,2019,41(5):58-62. |
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| 作者姓名： | 丁宇星 李洪飞 宗卫华 李山东 |
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| 作者单位： | 青岛大学电子信息学院,青岛大学电子信息学院,青岛大学电子信息学院,青岛大学物理科学学院 |
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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： | 针对超宽带通信系统,提出一种小型超宽带天线,可以应用于终端设备。天线类型为共面波导馈电的缝隙型,缝隙结构为一矩形与一圆形组合而成,馈电结构与缝隙结构相似。天线的面积为22 mm×27 mm,印刷在厚度为0. 5 mm的FR4衬底上. 通过软件仿真分析了天线的工作原理以及尺寸对带宽的影响,仿真结果显示天线的带宽在不同的衬底厚度下均能覆盖UWB频段。天线的测试带宽为2.4 GHz~14.4 GHz,在超宽带的工作频段内测试效率超过76% ,测试增益大于2.1 dBi。
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| 关 键 词： | 超宽带天线 共面波导天线 缝隙天线 平面天线 小型天线 |
A CPW-fed Slot Antenna for Ultra-wideband Applications |
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| DING Yuxing,LI Hongfei,ZONG Weihua and LI Shandong.A CPW-fed Slot Antenna for Ultra-wideband Applications[J].Modern Radar,2019,41(5):58-62. |
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| Authors: | DING Yuxing LI Hongfei ZONG Weihua and LI Shandong |
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| Affiliation: | School of Electronics and Information,Qingdao University,School of Electronics and Information,Qingdao University,School of Electronics and Information,Qingdao University and School of Physics Science, Qingdao University |
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| Abstract: | A compact ultra-wideband (UWB) antenna is proposed for UWB terminals. The antenna is of a printed slot antenna fed by a coplanar waveguide. The slot is composed of a rectangle connected to a circle. The feeding has a shape similar with the slot. The proposed antenna is printed on a 0. 5 mm thick FR4 substrate with size of 22 mm×27 mm. Antenna performance and influence of antenna dimension on bandwidth are simulated and analyzed. Simulation shows that the proposed antenna covers UWB band with changing of substrate thickness. The measured bandwidth of the proposed antenna is 2. 4 GHz~14. 4 GHz. The proposed antenna is with measured efficiency higher than 76% and gain higher than 2. 1 dBi at UWB band. |
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| Keywords: | ultra-wideband antenna coplanar waveguide antenna slot antenna planar antenna small antenna |
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