【作者】 陈瑞洁； 相征； 李毅； 任鹏；

【Author】 CHEN Ruijie;XIANG Zheng;Li Yi;REN Peng;School of Communication Engineering,Xidian University;

【机构】 西安电子科技大学；

【摘要】 本文提出了一种新型吸波透波一体化的频率选择表面(Frequency Selective Surface,FSS)。通过有耗环状FSS和无耗带通FSS的级联,实现对不同频率(波长)电磁波的调控。上层有耗FSS由三个变形的八边形环状结构相互嵌套形成,并加载贴片电阻;下层带通FSS由两个尺寸相近的耶路撒冷型结构交错排列构成,且采用互补结构,以增加透波窗口的带宽,降低中心频点的插入损耗。全波仿真表明,该结构在1.1 GHz～1.3 GHz有一个传输窗口,最低插损仅为0.71 dB,且从0.57 GHz到2.55 GHz,反射系数可降至-6 dB以下。同时,该结构具有良好的角度稳定性和极化稳定性。更多还原

【Abstract】 A new frequency selective rasorber(FSR) is proposed in this paper.By the cascade of lossy ring frequency selective surface(FSS) and lossless band-pass FSS,the electromagnetic wave with different frequencies can be controlled.The upper lossy FSS consists of three deformed octagonal rings nested into each other and loaded with patch resistor.The lower band-pass FSS is composed of two Jerusalem cross of similar size,and a complimentary structure is adopted to increase the bandwidth of the transmission window and reduce the insertion loss of the central frequency.Full-wave simulation results show that the proposed structure has a transmission window of 3 dB at 1.1 GHz～1.3 GHz,and the minimum insertion loss is only 0.71 dB.The reflection coefficient can be reduced to below-6 dB from 0.57 GHz to 2.55 GHz.In addition,the proposed structure is polarization-insensitive and angularly stable.更多还原