SHF/EHF field-to-wire coupling model

Method-of-moments calculations have provided a database for deriving an empirical algorithm to characterize SHF/EHF coupling. The data show that the maximum field-to-wire current coupled into a port saturates as a function of height above the ground plane and that the saturation level can be simply characterized. The most important parameter in determining the saturation current is the near-port termination impedance. A computationally efficient algorithm is derived and can be incorporated into electromagnetic-compatibility (EMC) surveying/culling tools such as the IEMCAP code. The algorithm has been verified by coupled current measurements in an anechoic chamber. Cable-grounding conditions, port-termination resistance, and cable transmission loss are treated as input parameters in the algorithm.