A dual-axis wide-angle rectenna using a triple-feed array antenna

This paper proposes a new planar rectenna which provides dual-axis wide-angle reception. An in-phase/anti-phase triple-feed array antenna is employed to obtain high gain but prevent gain degradation due to main-beam misalignment. The proposed rectenna separately rectifies the in-phase and anti-phase components of the received RF waves in a simple structure by effectively using two types of magic-Ts. The performance of the proposed rectenna is experimentally evaluated. Better than 100-mV open-circuit DC voltages are obtained at 0.05-W/m² RF power density over the wide reception angle from −30° to 30° in both E- and H-plane when rectifying diodes are connected in parallel.