A New Approach to Characterize High Power Electromagnetic Waves Following Apertures Interactions

Summary form only given. External high power electromagnetic sources are threats to electrical systems used in both commercial and defense applications. Such an interaction with a very large electrical system can be simulated through a modular technique known as electromagnetic topology (EMT) that requires volume decomposition. In our presentation, we have demonstrated an improved electromagnetic EMT based simulation approach by integrating a transmission line matrix method to the topological simulation technique. This approach allows for the use of the topological code for fields propagations between electrical systems through mediums other than hard-wire cables. An array of cable network is created by the integration of the sub-network matrices based on the TLM network. The agreement of the simulated results with FDTD analysis validates the topological approach to simulation through volume decomposition. Analysis also shows that the aperture size affects field propagation and penetration, thus influencing both the field characteristics and frequency spectral components of the incident pulse