Wideband RCS Reduction of a Microstrip Antenna Using Artificial Magnetic Conductor Structures
Wideband RCS Reduction of a Microstrip Antenna Using Artificial Magnetic Conductor Structures
复制标题
使用人造磁导体结构减少微带天线的宽带 RCS
DOI：
10.1109/lawp.2015.2413456
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发表时间：
2015-01-01
影响因子：
4.2
通讯作者：
Yang, Huanhuan
中科院分区：
文献类型：
--
作者：
Zheng, Yuejun;Gao, Jun;Yang, Huanhuan
提出了一种在宽频带内减小微带天线雷达散射截面的设计方法。首先，设计了两种不同的人工磁导体（AMC）单元，以在宽带频率范围内获得180度（+/-30度）的反射相位差。然后，将两个AMC单元构成棋盘形布局，并将其应用于微带天线的RCS减缩。仿真结果表明，该天线在8.0 GHz~20.0 GHz范围内对两个极化方向都有显著的RCS减缩效果，并覆盖了原天线的工作频段。最大衰减为31.9 dB。此外，天线的辐射性能得到了很好的保持。制作的样机的测量结果与模拟结果吻合良好。
A design approach aimed at reducing the radar cross section (RCS) of microstrip antenna in wide frequency band is proposed. First, two different artificial magnetic conductor (AMC) unit cells are designed to obtain 180 degrees (+/- 30 degrees) reflection phase difference over broadband frequency range. Then, chessboard configuration is structured with the two AMC unit cells and is applied to a microstrip antenna for RCS reduction. The simulated results indicate that the proposed antenna possesses remarkable RCS reduction from 8.0 GHz to 20.0 GHz for both polarizations, covering the working band of the original antenna. The maximum reduction is 31.9 dB. Moreover, the radiation performance of the antenna has been well kept. Measured results of the fabricated prototype are in good agreement with the simulations.