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首页> 美国卫生研究院文献>Materials >Low Scattering Microstrip Antenna Based on Broadband Artificial Magnetic Conductor Structure
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Low Scattering Microstrip Antenna Based on Broadband Artificial Magnetic Conductor Structure

机译：基于宽带人工磁导体结构的低散射微带天线

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摘要

In this summary, we have suggested a new technique in which destructive interference principle is incorporated into a chessboard like a reflective screen, and the proposed antenna realizes a remarkable in-band and also out-of-band backscattered energy reduction by using a metasurface (MS). Two different MS unit cells are designed to provide the resonant frequency with a zero-degree reflection phase. Metasurface unit cells are configured in a chessboard-like reflector screen to achieve the reflection phase difference of 180° ± 37° over a broadband range of frequencies to redirect the scattering field into four quadrants. It is implemented to reduce the backscattered energy level of the microstrip antenna, which is based on destructive interference principle. The simulations indicate that the proposed antenna possesses significant backscattered energy reduction from 6 GHz to 16 GHz in both x– and y– polarization and also −10 dB backscattering reduction at antenna working band (7.4–7.8 GHz) is covered. Moreover, the radiation performance is preserved well and artificial magnetic conductor (AMC) unit cells work at different frequencies which are not influenced on the radiation properties. The bistatic performance of the antenna at different frequencies is also presented. Measurements and simulations of the fabricated design coincide well and the proposed design is verified and validated successfully.
机译：在本摘要中，我们提出了一种新技术，其中将破坏性干扰原理结合到象棋板（如反射屏）中，并且所提出的天线通过使用超颖表面实现了显着的带内和带外反向散射能量降低（多发性硬化症）。设计了两个不同的MS晶胞，以提供具有零度反射相位的谐振频率。超表面单位晶胞配置在类似棋chess的反射屏中，以在宽带频率范围内实现180°±37°的反射相位差，从而将散射场重定向到四个象限。它是基于相消干扰原理来降低微带天线的反向散射能级。仿真表明，所建议的天线在x和y极化方面均具有从6 GHz到16 GHz的显着反向散射能量降低，并且涵盖了天线工作频带（7.4–7.8 GHz）的-10 dB反向散射降低。此外，辐射性能得到很好的保留，并且人造磁导体（AMC）单位电池在不影响辐射性能的不同频率下工作。还介绍了天线在不同频率下的双基地性能。所制造的设计的测量和仿真吻合得很好，并且成功验证了所提出的设计。

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