-种新型吸收/透射宽带频率选择雷达天线罩的设计  

Design of a New type of Absorption/transmission Ultra-wideband Frequency Selective Rasorber

作　　者：李秋雨 林海[1] 武琰杰 熊杰 Li Qiuyu;Lin Hai;Wu Yanjie;Xiong Jie(Central China Normal University,Wuhan Hubei,430079)

机构地区：[1]华中师范大学,武汉430079

出　　处：《测控与通信》2024年第4期47-50,54,共5页

摘　　要：本文提出了1种新型吸收/透射宽带频率选择雷达天线罩(Absorptive/Transmissive Frequency Selective Rasorber,A/T-FSR),该A/T-FSR由有损层和无损层组成,有损层是由曲折线小型化交叉的偶极子构成,无损层为1个改进的十字环形缝隙单元。最终经过仿真优化,可知该A/T-FSR在3.46~7.68GHz的范围内有90%的吸波率,其相对带宽为75.8%,且在10.6GHz处的插入损耗为0.22dB。另外,对于TE和TM极化,所设计的A/T-FSR在0°~30°之间变化时有良好的角度稳定性。因此,本文所设计的A/T-FSR在电磁隐身技术和减小雷达截面领域有潜在的应用。This paper proposes a new type of absorptive/transmissive frequency selective rasorber(A/T-FSR).The A/T-FSR consists of a lossy layer and a lossless layer.The lossy layer is composed of the zigzag line is made up of miniaturized and crossed dipoles,and the lossless layer is an improved cross-shaped slot unit.Finally,through simulation and optimization,it can be seen the A/T-FSR has a 90%absorption rate in the range of 3.46GHz-7.68GHz,its relative bandwidth is 75.8%,and the insertion loss at 10.6GHz is 0.22dB.In addition,for TE and TM polarization,the designed A/T-FSR has good angular stability when it varies from 0°to 30°.Therefore,the A/T-FSR designed in this paper has potential applications in the field of electromagnetic stealth technology and radar cross-section reduction.

关 键 词：频率选择雷达天线罩 宽带吸收 电磁隐身 雷达散射截面 

分 类 号：TN9[电子电信—信息与通信工程]