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中文摘要：
设计了一种同时具备高增益和宽带低散射特征的波导缝隙天线．将蚀刻有互补开口谐振环的方形贴片人工磁导体正交布阵得到宽带低雷达截面积（RCS）反射屏并以之代替原天线的全金属反射板，通过优化反射屏的加载方式，在展宽天线工作频带、提高天线增益的同时，实现了宽频域范围内天线鼻锥方向RCS减缩．实测结果表明：加载低RCS反射屏的缝隙天线工作带宽增加了100MHz，前向增益提高了3．2dB，在5．52-6．63GHz范围内RCS减缩量达10dB以上，减缩带宽达到20％．
英文摘要：
A novel design for high gain and low radar cross section （RCS） waveguide slot antenna is proposed. Low RCS screen composed of orthogonal array of complementary split ring resonator etched square patch artificial magnetic conductor （CSRR-AMC） is exploited on the antenna for radiation improvement and broadband RCS reduction. Measured results demonstrate that the operating bandwidth is increased by 100 MHz and the gain is enhanced by 3.2 dB with the proposed structure. Meanwhile, 10 dB RCS reduction is achieved over the range of 5.52--6.63 GHz, implying 20% relative bandwidth.
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High Impedance Ground Plane (HIGP) incorporated with resistance for Radar Cross Section (RCS) reduct
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