An Investigation on ILCMS for Coupling of Fields Into a Generic Missile Body through Apertures

The conventional way of analysing electromagnetic coupling into cavities is by means of full-wave solvers based on techniques such as the finite difference time domain method, the method of moments and the transmission line matrix (TLM) method. However, these methods require considerable computing resources and time to reach a solution. Intermediate level circuit models (ILCMs) have been shown to be far more efficient than these conventional methods. They are simpler and quicker to formulate and require significantly less time to reach a solution than conventional methods. This paper is on investigations in the bid to realize intermediate level circuit models for coupling into the generic missile body through apertures. A model for coupling via small apertures that yields credible results is realized which is validated against TLM results for the same problem.