一种可用于卫星导航抗干扰天线的降耦方法  

A method to reduce the coupling for satellite navigation anti-jamming antennas

作　　者：傅随道 曹振新[1] 汤湘伟 闫双山 FU Suidao;CAO Zhenxin;TANG Xiangwei;YAN Shuangshan(State Key Laboratory of Millimeter Waves,Southeast University,Nanjing Jiangsu 210096,China;CETC Yangzhou Baojun Radio Factory,CETC,Yangzhou Jiangsu 225003,China)

机构地区：[1]东南大学毫米波国家重点实验室,江苏南京210096 [2]中国电科中电科技扬州宝军电子有限公司,江苏扬州225003

出　　处：《太赫兹科学与电子信息学报》2018年第5期781-785,共5页Journal of Terahertz Science and Electronic Information Technology

基　　金：国家自然科学基金资助项目(61471117)

摘　　要：针对基于功率倒置算法的空时自适应抗干扰技术中天线阵元间互耦误差严重恶化算法性能这一问题,分析比较了目前常见的应对解决方案,并提出一种新的可用于抗干扰卫星导航终端的天线阵列降耦方法。该方法通过在卫星导航抗干扰天线阵列中加载电磁谐振吸波器,降低天线阵元间互耦。实验数据表明,利用该方法可以使阵元间互耦降低10dB,使抗干扰接收机最大抑制干信比提升5 dB。The mutual coupling between the antenna elements based on the Power Inversion(PI)algorithm deteriorates the performance of the space-time adaptive anti-jamming.Common solutions to solve the problem are analyzed and compared.A new method which can be applied to reduce the coupling in the anti-jamming satellite navigation positioning between the antenna elements is proposed.The method reduces the mutual coupling between the antenna elements by loading the electromagnetic resonance absorber in the satellite navigation anti-jamming antenna array.The experimental data show that the method can reduce the mutual coupling between the arrays by 10 dB,and therefore the anti-jamming receiver can suppress the maximum Jamming-to-Signal ratio by 5 dB.

关 键 词：卫星导航 空时自适应处理 阵元互耦 完美吸收器 

分 类 号：TN967.1[电子电信—信号与信息处理]