Abstract
A novel electromagnetic bandgap (EBG) antenna has been designed, optimized, and analyzed using an efficient electromagnetic solver based on the moment method. Very good agreement between simulations and measurements in anechoic chamber has been obtained. Comparisons of the antenna with and without the EBG structure have been conducted to study its influence in terms of gain. This new EBG antenna is an excellent candidate for several applications due to its high gain and good polarization purity.
Highlights
Several applications of electromagnetic bandgap (EBG) materials, such as microwave filters, antennas, amplifiers, microstrip devices, ground plane structures, and base station antennas have been reported in the literature
The design, optimization, and analysis of a compact EBG antenna operating at 9 GHz have been presented in this paper
We have demonstrated that the effect of including the EBG structure is an enhancement in gain
Summary
Several applications of EBG materials, such as microwave filters, antennas, amplifiers, microstrip devices, ground plane structures, and base station antennas have been reported in the literature. On the other hand, [3] presents a resonator antenna that increases its gain and bandwidth with an EBG structure over the device It has been demonstrated [4] that the EBG materials are able to provide good results while reducing the size of some kinds of filters. The aim of this paper is to design a compact EBG antenna that provides a gain greater than 15.0 dBi and polarization purity greater than 40 dB while maintaining a very small size. To fulfill these requirements, the dimensions of the antenna were optimized by using a powerful electromagnetic solver
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