Multiband rectenna for microwave applications

This paper reports recent results obtained in the Ku and K bands by using a multiband rectenna. The targeted application is the electromagnetic harvesting of the spill-over losses of microwave antennas for powering autonomous wireless sensors used for satellite health monitoring. The experimental results demonstrate that this compact rectenna can harvest efficiently the incident electromagnetic energy at three different frequencies that roughly correspond to the resonant frequencies of the used cross dipoles antenna array.