电阻率各向异性架设场地对水平天线的影响  

Radiation Intensity of Horizontal Wire Antennas Over Resistivity Anisotropic Earth

作　　者：谢慧[1] 万露 岳智彬 XIE Hui;WAN Lu;YUE Zhibin(College of Electronic Engineering,Naval University of Engineering,Wuhan 430033)

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《舰船电子工程》2024年第1期204-208,共5页Ship Electronic Engineering

摘　　要：论文研究了架设场地电导率各向异性,且呈现多维复杂结构时,对水平线天线辐射场的影响。根据可控源电磁法的正演算法提出了一种新的方法,通过引入一个复电导率将位移电流计算在内,使用基于规则六面体网格的矢量有限元法,实现了三维各向异性架设场地下,空间任意点的电磁响应数值模拟。通过设计一维电导率各向异性模型,对比了一维解析解算法与论文算法的计算结果,验证了论文方法的准确性。通过设计三维电导率异常体模型,计算了异常体相对于天线不同位置下的电场强度,指出靠近天线两端存在高电阻率异常体有利于水平线天线电磁辐射。In this paper,the influence of the multi-dimensional resistivity anisotropic earth on the radiant field excited by a horizontal wire antenna is studied.According to the forward algorithm of controlled source electromagnetic method,a new method is proposed.The displacement current is calculated by a complex conductivity.The vector finite element method based on regular hexa-hedron mesh is used to realize the numerical simulation of electromagnetic response at any point in space under three-dimensional anisotropic erection site.By designing a one-dimensional resistivity anisotropic model,the calculation results of the one-dimension-al analytical solution algorithm and the proposed algorithm are compared to verify the accuracy of the proposed method.By designing a three-dimensional resistivity anisotropic model,the electric field intensity excited by the antenna is calculated,when the abnor-mal body is in different positions.It is pointed out that the existence of high resistivity abnormal body near the two ends of the anten-na is beneficial to the electromagnetic radiation of the horizontal line antennas.

关 键 词：电阻率各向异性 水平线天线 三维 矢量有限元法 

分 类 号：TM15[电气工程—电工理论与新技术]