Broadband Energy Harvesting Metasurface Covering WiFi band with Wide-Angle Incidence

A broadband energy harvesting electromagnetic energy metasurface with wide-angle incidence characteristic is proposed in this paper. The structure consists of four quarter metal rings plus H-shaped metal patches. The lumped elements are placed on the surface of the metasurface Enables efficient broadband harvesting of energy at 2.45 GHz and 5.8 GHz frequency points. And the bandwidth with an efficiency of more than 90% reaches 2.6 GHz, and the bandwidth with an efficiency of more than 80% reaches 3.43 GHz. The relative bandwidth with an energy harvesting efficiency of more than 80% is 83.67%, and with an energy harvesting efficiency of more than 90% is 65.64%.