一种新型超宽带紧耦合天线阵列设计
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(1. 海军航空工程学院电子信息工程系,山东 烟台 264001;2. 陆军航空兵学院,北京 101123)

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TN822

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Design of a Novel Ultra-Wideband Tightly Coupled Antenna Array
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(1. Department of Electronic and Information Engineering, NAAU, Yantai Shandong 264001, China;2. Army Aviation Academy, Beijing 100123, China)

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    摘要:

    针对紧耦合天线阵列(Tightly Coupled Array,TCA)安装于飞机、导弹、舰船等平台时接地板严重影响其阻抗带宽的问题,将栅格形阻性频率选择表面与交指型偶极子天线单元相结合,设计了一种新型多层结构的超宽带TCA。采用CST对加载与未加载栅格形阻性频率选择表面时TCA的性能进行了比较分析。结果表明:未加载时,受接地板影响其最佳阻抗带宽(VSWR<2)为[4.5∶1](2.1~9.5 GHz);加载后,TCA可克服接地板的影响,其阻抗带宽可达[10.4∶1](1.8~18.8 GHz)。

    Abstract:

    The impedance bandwidth of tightly coupled array (TCA) is greatly effected by the ground plane when it is installed on the platform of airplanes, missiles and naval ships. In view of this question, a novel ultra-wideband TCA with multilayer structure was designed by grid resistance frequency selective surface and interdigital dipole antenna. The performance of TCA with and without grid RFSS was compared by CST, the simulated result showed that the effect of ground plane was greatly restricted by loading a grid RFSS, the impedance bandwidth (VSWR<2) of TCA with grid RFSS was[10.4∶1] (1.8~18.8 GHz), while without grid RFSS the best bandwidth was [4.5∶1] (2.1~9.5 GHz).

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张君,胡志慧,曲洪东.一种新型超宽带紧耦合天线阵列设计[J].海军航空大学学报,2014,29(2):127-130
ZHANG Jun, HU Zhi-hui, QU Hong-dong. Design of a Novel Ultra-Wideband Tightly Coupled Antenna Array[J]. JOURNAL OF NAVAL AVIATION UNIVERSITY,2014,29(2):127-130

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  • 在线发布日期: 2015-04-28
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