利用低轮廓EBG减小贴片天线的RCS及增益增强

2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE) Pub Date : 2018-12-01 DOI:10.1109/ISAPE.2018.8634341

Zi-Jian Han, Wei Song, Yulong Zhu, X. Sheng

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引用次数: 4

摘要

为了减小贴片天线的雷达截面(RCS)，提高增益，提出了一种新型的低姿态EBG。该天线在轴视处具有较低的x极化和y极化散射性能。与传统采用棋盘状结构设计的低RCS反射器不同，该设计利用了一维(1-D)周期超表面，所需的超材料单元较少。全波仿真结果表明，该方法在11.2GHz时可将RCS降低13dB以上。除RCS降低外，在天线工作频带10.55GHz到12GHz范围内，宽带增益明显提高(12.9%)。

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RCS Reduction and Gain Enhancement for Patch Antenna by Using Low Profile EBG

A novel low profile EBG is proposed to reduce the radar cross section (RCS) and enhance the gain for patch antenna. The proposed antenna shows low scattering performance for both x- and y-polarization at boresight. Different with conventional low RCS reflector designed by using chessboard-like structure, this design makes use of one-dimensional (1-D) periodic metasurface and need fewer metamaterial cells. Full wave simulation results show that RCS can be reduced more than 13dB at 11.2GHz by the proposed slotted EBG. Except for the RCS reduction, the broadside gain can be obviously enhanced over the antenna operating frequency bandwidth from 10.55GHz to 12GHz (12.9%).

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2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

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