[IEEE 2018 26th International Conference on Software, Telecommunications and Computer Networks (SoftCOM) - Split, Croatia (2018.9.13-2018.9.15)] 2018 26th International Conference on Software, Telecommunications and Computer Networks (SoftCOM) - On the Frequency Domain Analysis of Straight Thin Wire Radiating Above a Lossy Half-Space : Pocklington equation versus Hallén equation revisited: 80th Anniversary of the Hallén Integral Equation