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任意形状天线罩的快速分析
引用本文:郭景丽,李建瀛,刘其中. 任意形状天线罩的快速分析[J]. 电波科学学报, 2006, 21(2): 189-193
作者姓名:郭景丽  李建瀛  刘其中
作者单位:西安电子科技大学天线与微波技术国家重点实验室,陕西,西安,710071
摘    要:将自适应积分算法与体积分方程相结合分析任意形状天线罩对天线辐射特性的影响。将任意形状的天线罩剖分成四面体,基于体积分方程的自适应积分快速算法求出天线罩上的感应电流,即可求出天线-天线罩系统的总场。自适应积分快速算法的应用提高了矩量法的计算速度,并大大缩减了需要的存储量,从而使该方法可用于分析电尺寸较大的天线罩.最后,分别计算了球形、锥形天线罩存在时理想电振子阵列的辐射方向图。

关 键 词:天线罩 自适应积分算法 体积分方程 电磁散射
文章编号:1005-0388(2006)02-0189-05
收稿时间:2004-10-14
修稿时间:2004-10-14

Fast analysis of arbitrarily shaped dielectric radomes
GUO Jing-li,LI Jian-ying,LIU Qi-zhong. Fast analysis of arbitrarily shaped dielectric radomes[J]. Chinese Journal of Radio Science, 2006, 21(2): 189-193
Authors:GUO Jing-li  LI Jian-ying  LIU Qi-zhong
Abstract:The adaptive integral method (AIM) is combined with the volume integral equation (VIE) to analyze the radiation of the antenna with a arbitrary shaped radome. By employing the tetrahedron cells, the radome is modeled and the induced volume current is determined by the AIM based on VIE. The application of AIM reduces significantly the execution time and computer memory. Hence, the method presented in the paper can be applied to electrically large sized radomes. Finally, the radiation patterns of ideal dipole arrays in the presence of spherical and conical radomes are calculated.
Keywords:antenna radome   adaptive integral method   volume integral equation   electromagnetic scattering
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