| 一种可用于相控阵的双点馈多层圆极化微带天线 |
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| 引用本文： | 闫鹏,李阳,李振海,白旭东,金荣洪,耿军平,梁仙灵.一种可用于相控阵的双点馈多层圆极化微带天线[J].中国电子科学研究院学报,2012,7(1):76-80. |
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| 作者姓名： | 闫鹏 李阳 李振海 白旭东 金荣洪 耿军平 梁仙灵 |
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| 作者单位： | 上海交通大学现代天线研究中心,上海,200240 |
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| 基金项目： | "973"子课题，上海市自然科学基金，教育部博士点基金，国家科技重大专项，自然科学基金创新群体，教育部留学回国人员科研启动基金 |
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| 摘 要： | 设计出了一种双背馈空气夹层微带圆极化天线单元，该天线单元具有13％的阻抗带宽，最大辐射方向上轴比2．5dB。用该天线单元以顺序旋转的方式组成四元阵，再用八个该天线单元和两组一分八功分器组成八单元阵列，研究了该阵列天线圆极化波束分别指向天线阵法向和偏转30°时的辐射特性和极化特性。该天线单元组阵圆极化轴比特性好，易于实现波束扫描，适合用于有源相控阵系统。
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| 关 键 词： | 圆极化天线 轴比 旋转结构 波束扫描 |
A Dual-fed Multi-Layer Circularly-polarized Microstrip Antenna for Phased Array |
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| YAN Peng,LI Yang,LI Zhen-hai,BAI Xu-dong,JIN Rong-hong,GENG Jun-ping,LIANG Xian-ling.A Dual-fed Multi-Layer Circularly-polarized Microstrip Antenna for Phased Array[J].Journal of China Academy of Electronics and Information Technology,2012,7(1):76-80. |
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| Authors: | YAN Peng LI Yang LI Zhen-hai BAI Xu-dong JIN Rong-hong GENG Jun-ping LIANG Xian-ling |
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| Affiliation: | (Modern Antenna Research Center,Shanghai Jiao Tong University,Shanghai 200240,China) |
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| Abstract: | A planar dual-back-fed circularly-polarized microstrip antenna is proposed based on the air mi-crostrip structure.The element has 13% impedance bandwidth and the axial ratio of maximum radiation direction is 2.5 dB.Based on the element design,a rotationally symmetric four-element array is also de-signed.Furthermore,in order to verify the circularly-polarized beam scanning characteristics of antenna array,an eight-element array is composed by eight elements and two power splitters to realize the beam pointing to the normal direction and 30° deviation respectively.The antenna owns good circular polarization axial ratio and is easy for beam scanning,which is very suitable for the active phased array applications. |
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| Keywords: | circular polarization antenna axial ratio rotated structure beam scanning |
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