An electromagnetic model for multiconductor connectors

The authors present an analysis that gives insight into the mechanism of how electromagnetic energy originating inside an MTL (multiconductor transmission line) network couples through a connection into the external region. The slot admittance can be replaced by the low-frequency admittance of the connector, which can be measured. The problem is formulated for a uniform MTL containing N lines inside a shield. The problem is solved essentially by treating the slot as a thick aperture in the shield. Two coupled integral equations are obtained for the equivalent surface magnetic currents by enforcing the boundary condition that tangential H is continuous across the aperture surfaces. The coupled integral equations are solved by the method of moments, and an equivalent network representation is realized. As a particular example, a circular cylindrical MTL is considered. >