Enhancement of Gain and Reduction of Backward Radiation Using Metasurface Antenna for Energy Harvesting Applications

Abstract

A reflective metasurface technique is used to enhance the gain and reduction of backward radiation of an antenna. A normal metal slots is placed around the radiating patch to get the improved gain. Another metasurface antenna is placed with 10mm Gap from the radiating antenna to get the high radiation and enhanced directivity. A partial ground and line feeding with the conventional coplanar wave guide technique is used to improve the over all result. A rectifier circuit has been designed to harvest the electromagnetic energy to convert the DC output power. In the proposed model 8.1dB of Gain and -13.1dB of backward radiation with 2.82V of DC output power has been observed. The entire simulation and measurements has been done on HFSS and ADS software.