Statistical characteristics of coupling effects for interconnected cavities based on random topology model

When the electromagnetic wave transports through apertures into the multi-port microwave chaotic cavities, random coupling model for apertures is derived to predict the statistical characteristics of the coupling voltage. And a complex calculation method, random topology model, which combines random coupling model and electromagnetic topology theory, is elaborated to determine the statistical characteristics of the coupling voltage and transmission coefficient for interconnected cavities. Results are of great interest in the analysis of the radiation coupling into the complex irregular chaotic cavities as well as the reverberation chambers.