Dual-polarization metasurface for microwave energy harvesting

In this paper, we proposed a reconfigurable metasurface for microwave energy harvesting. Based on the different diode states, the proposed metasurface can capture x-polarized or y-polarized incident electromagnetic (EM) wave. The energy collector consists of cross-patch, F4B substrate, a pair of pin diodes, DC line, and a coaxial port loaded with a combination of matched resistors to the input impedance of the analog load or rectifier. The simulation results show that the proposed resonator can capture x-polarized or y-polarized EM wave with high energy capture efficiency at the normal incident frequency of 7.11 GHz.