物理学报Issue(23)：237302-1-237302-7,7.DOI:10.7498/aps.62.237302
Ku/Ka波段双通带频率选择表面雷达罩设计研究
Design and study on the dual-band radome with FSS operation at Ku-/Ka-band
摘要
Abstract
In order to meet the multi-band and integration requirements of the communication apparatus, the coupling and resonance mecha-nism can be exploited to design a frequency selective surface (FSS), with two pass-bands at Ku-band and Ka-band, which is composed of three metallic layers and fabricated on a flat substrate equivalent to a solid wall radome or an A-sandwiched radome. According to the physical structure of the FSS, an equivalent circuit model is established to analyze the filtering mechanism, and the transmission characteristics of the radomes with FSS are obtained by using a full-wave analysis software. The first pass-band at Ku-band with miniaturization property can be achieved by coupling the electric and magnetic field of the three surfaces, while the second pass-band at Ka-band can be achieved by the resonance of the square loop slots embedded in the capacitive surfaces. The transmissions of the solid wall radome and A-sandwiched radome with FSS are 89%and 94.7%at Ku-band, and 88.2%and 93.7%at Ka-band, respectively. When the incident angle is varied from normal to 60◦, the frequency response characteristics of the two pass-bands are stable. Finally, the experimental results of the prototype with a solid substrate measured in free-space environment are in good agreement with the simulated values. The proposed radome structure with FSS, which is based on the coupling and resonance mechanism, can achieve two stable pass-bands at Ku-/Ka-band. This may provide some theoretical and experimental assistance for the study of the multi-band and wide band spacing FSS.关键词
雷达罩/频率选择表面(FSS)/双通带Key words
radome/frequency selective surfaces (FSS)/dual-band引用本文复制引用
王秀芝,高劲松,徐念喜..Ku/Ka波段双通带频率选择表面雷达罩设计研究[J].物理学报,2013,(23):237302-1-237302-7,7.基金项目
春光机所创新三期工程项目(批准号:093Y32J090)资助的课题.*Project supported by the Third Innovation of CIOMP (Grant No.093Y32J090) （批准号:093Y32J090）
