一种基于超材料的谐波抑制天线罩  

A Novel Harmonic Suppressing Radome Based on Metamaterial

作　　者：王立超[1] 张强[1,2] 刘志惠 李洋[1] WANG Li-chao;ZHANG Qiang;LIU Zhi.hui;LI Yang(The 14th Institute of China Electronics Technology Group Corporation, Nanjing 210039, China;National Key Laboratory of Antenna and Microwave Technology, Nanjing 210039, China)

机构地区：[1]中国电子科技集团公司第十四研究所,南京210039 [2]天线与微波技术重点实验室,南京210039

出　　处：《微波学报》2018年第3期6-9,20,共5页Journal of Microwaves

摘　　要：设计了一种基于超材料结构的前置谐波抑制单元天线罩,该天线罩采用多层互补型亚波长单元结构,在一个天线单元的有限尺寸范围内排列更多的周期单元,减小边缘效应的影响,天线罩总厚度小于5 mm,通过PMI泡沫与喇叭天线连接。采用激光刻蚀工艺制备了不同尺寸的两种试验件,并进行了超材料的传输系数测试以及带罩天线阵谐波抑制性能测试,结果表明,所设计的超材料谐波抑制天线罩具有带内0.3 dB的插损,二次谐波20 dB和三次谐波30 dB的抑制能力。In this paper, a novel harmonic suppression unit radome based on metamaterial is designed. The radome consists of a multi-layer structure. For arranging more periodic units in the limited size range of an antenna unit to reduce the influence of the edge effect, a complementary subwavelength unit is designed. The total thickness of the radome is less than 5 mm, and is connected by the PMI foam with horn antenna. With laser ablation technology two kinds of radome were fabricated. The transmission coefficient test and the harmonic suppression test of the array antenna array are carried out. The results show that the radome has the insertion loss of 0.3 dB in band, the suppression of the second harmonic 20 dB and the suppression of the third harmonic 30 dB.

关 键 词：超材料 天线罩 谐波抑制 电磁兼容 

分 类 号：TN820.81[电子电信—信息与通信工程]