ANALYSIS OF ELECTROMAGNETIC RADIATION WITH AN ELECTRIC DIPOLE ABOVE LOSSY GROUND USING COMPLEX IMAGE THEORY

摘要

This paper introduces a version of Discrete Complex Images Method (DCIM), to evaluate the Sommerfeld integrals arising in the problem of a dipole above and within lossy ground. The spectral domain Green's function is accurately approximated by a finite series of exponential functions. By use of the GPOF algorithm and extensive numerical iteration and through the Sommerfeld equality, the Sommerfeld integrals can be analytically evaluated into simple closed forms of spatial complex images. Numerical results show that for any parameters of the lossy ground, the near and far region electromagnetic radiation field approaches the precision of the results of Sommerfeld numerical solution.