A 2.45 GHz dielectric resonator rectenna for wireless power transmission

This paper presents a compact rectenna for wireless power transmission. In the rectenna design, a RDRA is fed by a micro-strip line and the resonator is placed above a RT 5880 substrate. The stub covered by the DRA is optimized to adjust the antenna performance. In addition, the antenna is simulated, fabricated and measured. Furthermore, a rectifying circuit is connected to the DRA, and the results show that the rectenna can achieve the highest conversion efficiency of 60% at 2.45 GHz with the power density of 0.2 mW/cm
²
.