Proposal of new EBG ground planes in the electric size reduction design of planar antennas

A proposal is presented for new electromagnetic bandgap (EBG) ground planes in the design of planar antennas with reduced electrical size. Based on the concept of incident and reflected waves (wave concept iterative process $WCIP method) the scattering coefficients are obtained for each ground plane model. The iterative procedure applies the fast modal transform (FMT) to change the analysis between the spatial and spectral domains. The simulation results are compared with measurements and show good agreement. In the analysis of antenna resonance frequency, a reduction in antenna dimensions can be obtained. The decrease in operating resonance frequency is one of the goals in compact transmitter/receiver development.