Influence of Lossy Half-Space on Scattering Response from Nonlinearly Loaded Antenna using Genetic Algorithm

In this study, the effect of lossy ground on the scattering response from nonlinearly loaded antenna is investigated. To this end, at first a microwave equivalent circuit of the problem under consideration is proposed in the frequency domain. Then a hybrid model based on combining method of moments and genetic algorithm is used to compute the scattering response from nonlinearly loaded antenna over lossy ground. The achieved results show that increasing ground conductivity led to decreasing the magnitude of fundamental harmonies. In addition, the magnitude of some of mixing harmonies are increasing in despite of free space. Therefore, when the nonlinear antennas are located over lossy ground, the lossy effect should be considered.

کلیدواژه ها:

nonlinear antenna ، genetic algorithm ، lossy ground