摘要
阵列天线表面电流的数值分析具有重要的实用价值.该文用电场积分方程和矩量法相结合分析了对偶极子天线的表面电流分布,其中将线天线模拟为带状线,天线表面采用平面三角形进行剖分,RWG基函数作为电流展开函数.对于均匀线阵,由于阵元之间存在着电磁耦合,使得当入射波方向改变时各阵元电流的变化不同.仿真得到了其变化情况,为以后进一步研究互耦问题有一定的指导意义.
The numerical analysis of surface current distribution of array antenna is very significant to practical applications. In the article, the surface current distribution of dipole antenna was analyzed by using electric field integral equation （EFIE） and the method of moment （MoM）. With this method, the wire antenna was modeled as a thin strip, the surface of antenna was partitioned with planar triangular patches and the RWG basis function was taken as the current expansion function. For uniform linear array, because of the effects of mutual coupling between array elements, the current in each array element varies with the change of orientation of the incident wave. The simulation obtains the law of change of surface currents, offering a helpful tool for further study.
出处
《应用科技》
CAS
2007年第11期39-42,共4页
Applied Science and Technology
