5.8 GHz band high power rectenna with a monopole antenna on an artificial magnetic conductor

In this paper, the 5.8 GHz band high-power rectenna with the monopole antenna on the artificial magnetic conductor (AMC) substrate is demonstrated for the thinner equipment of wireless power transfer systems. The developed rectenna has thickness of 2 mm and can be put on a ground plane or a metal plate, because of the AMC effect. For high-power rectification of the GaAs double voltage rectifier MMIC, E-pHEMT gated anode diodes (GADs) are employed. Size of the developed rectenna is 15 mm x 17.2 mm x 2 mm. The measured rectification efficiency of 84.4 % at an input power of 1.51 W can be achieved.