| 加载辐射体异形机载天线的设计 |
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| 引用本文： | 张志端,李思敏,曹卫平,王定雄,孙成杰.加载辐射体异形机载天线的设计[J].无线电工程,2019(9):812-815. |
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| 作者姓名： | 张志端 李思敏 曹卫平 王定雄 孙成杰 |
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| 作者单位： | 1.桂林电子科技大学天线与射频研究中心 |
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| 基金项目： | 广西区教育厅研究生创新项目(YCSW2017138);广西无线宽带通信与信号处理主任基金项目(GXKL06170102) |
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| 摘 要： | 针对常规蝶形天线存在尺寸较大的问题,结合天线宽带加载技术,提出了一种实现机载蝶形天线宽频带和小型化的思路,设计了一种工作在200~400 MHz频段,在蝶形主辐射体侧边加载小辐射体的机载天线。采用FR4介质印制板对天线辐射体以及馈电巴伦制作,同时采用金属背腔,实现天线单向辐射特性。天线仿真与测试均可以达到较好的效果,该天线具有67%的相对带宽(VSWR≤2),增益≥4 d B。
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| 关 键 词： | 蝶形机载天线 宽带加载 小型化 馈电巴伦 |
Design on a Special Shaped Airborne Antenna for Loading Radiators |
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| ZHANG Zhiduan,LI Simin,CAO Weiping,WANG Dingxiong,SUN Chengjie.Design on a Special Shaped Airborne Antenna for Loading Radiators[J].Radio Engineering of China,2019(9):812-815. |
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| Authors: | ZHANG Zhiduan LI Simin CAO Weiping WANG Dingxiong SUN Chengjie |
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| Affiliation: | (Antenna and RF Research Center, Guilin University of Electronic Technology, Guilin 541004, China) |
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| Abstract: | The conventional bow-tie antenna is very large. In view of this point,a design idea of wideband and miniaturization of airborne bow-tie antenna is proposed combining with antenna broadband loading technology. An airborne bow-tie antenna with loading small radiators at the side of main radiator is designed,which operates at 200~400 MHz. The antenna radiator and the feed Barron are fabricated with FR4 media printed board,and the metal back cavity is used to achieve the unidirectional radiation characteristic. The experimental results agree well with simulation ones,the results show that the relative bandwidth (VSWR≤2) of the antenna reaches 67%,and the gain is ≥4 dB. |
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| Keywords: | airborne bow-tie antenna broadband loading miniaturization feeding balun |
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