Analysis of a vertical, tubular cylinder which penetrates an air-dielectric interface and which is excited by an azimuthally symmetric source

A method of moments analysis of a hollow, tubular cylinder which perpendicularly penetrates an air-dielectric interface is carried out using a potentiallike formulation. Currents are excited on this cylinder by means of an azimuthally symmetric source. Since the thin-wire kernel is not used and real-axis integration of Sommerfeld integrands is employed, this analysis provides an independent check on the numerical electromagnetics code for the case of thin wires which perpendicularly penetrate an air-dielectric interface. Sample results are given for thin wires which penetrate an air-water interface.