Comparison of antennas for Radio Frequency Energy Harvesting in 0.2–2.4 GHz range

Broadband Radio Frequency Energy Harvesting is a lucrative area of research nowadays. In this paper, we analyze various antennas for Radio Frequency Energy Harvesting in terms of broadband gain, return loss and packing conformality. Use of hexagonal spiral antenna which can provide excellent broadband characteristics without putting any bound on packing conformality is particularly emphasized. Analysis is based on simulation of various antennas using Method of Moments in IE3D Software.