Electromagnetic field coupling to buried wires: Comparison of frequency domain wire antenna and transmission line model

The paper deals with different frequency domain approaches for the analysis of electromagnetic field coupling to finite length buried wires based on the wire antenna theory, and the transmission line method (TLM). The wire antenna formulation deals with the corresponding Pocklington integro-differential equation, while the transmission line model uses the Telegrapher´s equations. The Pocklington equation is solved via the Galerkin-Bubnov scheme of the indirect boundary element method (GB-IBEM), while the transmission line equations are treated using the chain matrix method. Some illustrative numerical results for the frequency response of the buried conductor of finite length, obtained via different approaches, are presented in this paper.