A Circularly-Polarized Metasurfaced Dipole Antenna with Wide Axial-Ratio Beamwidth and RCS Reduction Functions
A Circularly-Polarized Metasurfaced Dipole Antenna with Wide Axial-Ratio Beamwidth and RCS Reduction Functions
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DOI：
10.2528/pier15092401
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发表时间：
2015
影响因子：
6.7
通讯作者：
Chen Chen-Chen;Zhuo Li;Liangliang Liu;Jia Xu;P. Ning;Bing-zheng Xu;Xinlei Chen;C. Gu
中科院分区：
文献类型：
--
作者：
Chen Chen-Chen;Zhuo Li;Liangliang Liu;Jia Xu;P. Ning;Bing-zheng Xu;Xinlei Chen;C. Gu
提出并研究了一种具有宽轴比(AR)波束宽度和雷达截面(RCS)减小特性的新型圆极化金属面偶极子天线(MSDA)。这种天线是一个非常简单的半波长线性偶极子，正好位于一个准表面之上，它由9个双头箭头形单元组成，排列成3×3的布局。通过仔细选择介面的几何参数和调节偶极子到介面的距离，整个结构是一种具有RCS降低特性的圆极化天线。仿真结果表明，圆极化多天线天线在◦=0◦和φ=90◦平面上分别获得了410 MHz的工作带宽和123φ和90◦的宽波束宽度，在整个工作频段内最大可减小10.4dBRCS值。
A new circularly-polarized metasurfaced dipole antenna (MSDA) with wide axial-ratio (AR) beamwidth and radar cross section (RCS) reduction properties is proposed and studied in this paper. This antenna is a quite simple half-wavelength linear dipole right above a metasurface which consists of 9 double-head arrow-shaped unit cells arranged in a 3×3 layout. By cautiously choosing the geometrical parameters of the metasurface and tuning the distance between the dipole and the metasurface, the whole structure turns out to be a circularly-polarized antenna with RCS reduction feature. Simulation results show that the MSDA in circular polarization achieves an operating bandwidth of 410MHz and a wide AR beamwidth of 123◦ and 90◦ in φ = 0◦ and φ = 90◦ planes respectively, together with a maximum RCS reduction of 10.4 dB in the whole operating band.