【作者】 徐嘉彦； 汪敏； 江扬杰； 吴文；

【Author】 XU Jiayan;WANG Min;JIANG Yangjie;WU Wen;Key Laboratory of Near-Range RF Sensing ICs & Microsystems (Nanjing University of Science and Technology),Ministry of Educationn;

【机构】 南京理工大学近程射频感知芯片与微系统教育部重点实验室；

【摘要】 本文提出了一种采用单层基板复合型超表面上盖板的低雷达散射截面(RCS)的高增益Fabry-Peort谐振腔(FPC)天线。基板下方采用方形贴片频率选择表面实现谐振腔所需的反射幅相调控,上方加载由反射相位反相的金属圆环构建的棋盘式超表面实现散射对消,使得天线同时获得高增益和低RCS性能。实测结果表明,天线在10 GHz获得18.57 dBi的增益,同时在11.48 GHz～13.6 GHz内获得了10 dB以上的RCS缩减。更多还原

【Abstract】 A high-gain Fabry-Peort cavity(FPC) antenna with low radar cross section(RCS) is proposed with a single-substrate composite metasurface superstrate.A square patch frequency-selective surface is etched on the bottom layer to realize the reflection amplitude-phase control required by the resonator.On the top layer,a checkerboard metasurface constructed by two kinds of metal rings with reversed reflection phase is loaded to realize scattering cancellation,which makes the antenna obtain both high gain and low RCS performance.Measured results show that a gain of 18.57 dBi is obtained at 10 GHz,and the-10 dB RCS is achieved over 11.48 GHz～13.6 GHz.更多还原