通过电磁场数值计算与仿真分析、评估通信天线大功率发射对艇上人员、装备的影响并及时采取防干扰措施,是潜艇总体电磁兼容性设计的重要内容之一.本文应用矩量法(MoM)对艇载通信天线电磁辐射特性进行研究.基于伽略金近似方法,采用分域基函数展开模式,建立艇载通信天线电磁辐射数值计算模型,求解得到振子天线的电流分布,并与实测结果相比较,具有较好的一致性.其仿真分析结果为潜艇总体电磁兼容性设计提供了很好的技术支持.%Through the electromagnetic field numerical calculation and simulation analysis,to assess the influences for personnel and equipment while communication antenna great power emisses, and to take measures to prevent interference timely, are the important contents of the overall electromagnetic compatibility design of submarine. The electromagnetic radiation of ship communication antenna is researched with Moment Method in this paper. Based on the Galerkin approximating method,the numerical calculating model for the electromagnetic radiation of ship communication antenna is formulated with the spreading pattern of the sub-domain's base function. Furthermore, the current distribution of dipole antenna is solved, which has the perfect coherence with those measured results. The results of simulation analysis in this paper provides technical support for the submarine overall electromagnetic compatibility design.
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