Comparative Study of Antenna in RF -Energy Harvesting

Various antenna maps made of rectennas that serve a variety of purposes, have been proposed in recent years for use in Radio Frequency Energy Harvesters (RFEH). Because of their low profile, planar structure, and low weight, microstrip patch antennas are the most commonly used antenna. Except for variations in the general map out modelled for various reasons, conventional patch antennas are circular and rectangular in shape. This paper deals with the clarification and consultation of various map out sets from the point of miniaturization, fated-tolerant, and harmonic rejections, with a focus on the various procedures approved to achieve a condense rectenna, frequency, and polarization selectivity. It is extremely advantageous to increase the proportion of energy obtained by harvesting technologies. Multiple energy harvesting antennas are required for a given area or space.