应用电磁拓扑方法求解孔线耦合的瞬态响应

针对电磁脉冲通过开有小孔的腔体内多导体传输线相耦合问题提出了其电磁拓扑模型,首先利用电磁拓扑理论,建立电磁拓扑图和电磁交互序列图,然后利用等效原理将孔等效为偶极子源并作为腔体内的激励源,经过超矢量积分变换后计算线上的等效分布源,最后给出了感应电压和电场屏蔽效能的仿真结果,并验证了模型的有效性.

Transient Response of Aperture and Lines Coupling Solved by Using Electromagnetic Topology Method

An electromagnetic topology (EMT) model is presented to solve the problem of electromagnetic pulse (EMP) coupling through an aperture to multi-conductor transmission lines inside cavity. The topological diagram and the interaction sequence diagram of the proposed model are constructed by using EMT theory. The aperture is replaced by the equivalent electric and magnetic dipoles sources which can be exciting sources inside cavity, the equivalent distribution sources on multi-conductor transmission lines are computed by the supermatrix integral transform. The simulation results of incident voltage and electric field shielding effectiveness (FSE) indicate the validity of the proposed model.