A Rectenna Design Based on Circularly Polarized Differential Antenna and Class-F Rectifier

A rectenna design based on truncated corner circularly polarized patch antenna with a dual out-of-phase feed is proposed in the presented work. Moreover, the axial ratio and realization of other fundamental characteristics of the antenna are studied using parametric analysis and optimized for 2.45 GHz. The proposed rectenna design utilizes a dual port differential feed rectifier that is connected directly to differential antenna minimizing loss in interconnects. The designed rectifier here is chosen as a class-F rectifier due to its inherent harmonic suppression property, its efficiency and converted power are simulated and analyzed. Finally, proposed dual feed antenna has been simulated with the designed rectifier circuit using circuit simulation method and obtained results are presented. The study concluded that the proposed rectenna arrangement is suitable for a medium power range WPT system.