A statistical model for the excitation of cavities through apertures

TL;DR

This paper introduces a statistical model combining deterministic and probabilistic approaches to predict electromagnetic coupling through apertures into irregular enclosures, useful for designing and analyzing complex electromagnetic environments.

Contribution

It presents a unified statistical framework using random matrix theory to model aperture coupling, bridging existing deterministic and statistical methods.

Findings

Universal behavior of transmitted power identified

Monte Carlo simulations effectively predict coupling

Model applicable to irregular enclosures and chambers

Abstract

In this paper, a statistical model for the coupling of electromagnetic radiation into enclosures through apertures is presented. The model gives a unified picture bridging deterministic theories of aperture radiation, and statistical models necessary for capturing the properties of irregular shaped enclosures. A Monte Carlo technique based on random matrix theory is used to predict and study the power transmitted through the aperture into the enclosure. Universal behavior of the net power entering the aperture is found. Results are of interest for predicting the coupling of external radiation through openings in irregular enclosures and reverberation chambers.