On the analysis of field-to-line coupling through apertures based on electromagnetic topology

In the proposed method, the key point is the aperture and field coupling node. The former is based on small aperture coupling theory, the latter is based on transmission line theory, and electromagnetic topology theory (EMT) is the leader to combine them together. EMT has the ability to simulate the response of inner circuits of electrically large complex system. The application of this theory could be on the subject of EMC, high power microwave (HPM), electromagnetic protection and the field of aircraft, automobile, etc. For the electrically large and arbitrary shaped aperture, there is no analytical expression. The only way is the use of numerical means. The following work will concentrate on it.