High gain array antenna using the high-order mode for wireless power transfer applications

초록

The proposed array antenna element consists of a rectangular patch with four shorting pins, an extended cavity, and a superstrate. The four shorting pins allow high-order mode operation, which can enhance the bore-sight gain. The mutual coupling strength between adjacent elements is minimized due to the extended cavity structure. In addition, the superstrate can enhance the bore-sight gain using the Fabry-perot structure. The proposed array antenna shows the simulated and measured maximum gains of 25.2 dBi and 24.2 dBi in the zx-plane, 25.6 dBi and 24.5 dBi in the zy-plane at 5.8 GHz. The simulated and measured transmission efficiencies are 7% and 6% at 0.8 m.

키워드