基于阻抗矩阵法的阵列天线互耦效应分析  

Analysis on Mutual Coupling Effect of Array Antenna Based on Impedance Matrix Idea

作　　者：杨峥峥[1] 宋文良 YANG Zheng-zheng;SONG Wen-liang(The 723 Institute of CSIC,Yangzhou 225101,China)

机构地区：[1]中国船舶重工集团公司第七二三研究所,江苏扬州225101

出　　处：《舰船电子对抗》2021年第4期53-56,共4页Shipboard Electronic Countermeasure

摘　　要：现代无线电设备越来越多地采用阵列天线,阵列天线是电磁领域研究的一大热点,而随着设备的小型化发展,阵列天线间的互耦影响不容忽视,直接关系到天线的性能,基于此,采用了矩量法这一电磁算法对阵列天线进行分析,将天线阵元之间的互耦影响用阻抗矩阵的形式表现出来,采用阻抗矩阵的思想对阵列天线的表面电流分布、阵列端阻抗、辐射方向图等方面进行分析,然后采用补偿矩阵的方式对互耦影响进行降低,数值结果表明计算结果良好,该研究对阵列天线的互耦抑制提供了依据。Array antennas are increasingly used in modern radio equipment.Array antennas are a hot spot in the field of electromagnetic research.With the development of equipment miniaturization,the influence of mutual coupling between array antennas cannot be ignored and is directly related to the performance of antenna.Therefore,this paper uses the method of moments(MOM)electromagnetic algorithm to analyze the array antenna,and expresses the mutual coupling effect between the antenna elements in the form of impedance matrix,and uses the idea of impedance matrix to analyze the surface current distribution of the array antenna,terminal impedance,radiation pattern and other aspects,then uses the compensation matrix mode to reduce the mutual coupling influence.The numerical results show that the calculation results are good.This study provides a basis for the mutual coupling suppression of array antenna.

关 键 词：矩量法 互耦 电磁耦合 阻抗矩阵 

分 类 号：TN821[电子电信—信息与通信工程]