Potential space applications of two far-field and near-field WPT systems

In this presentation we discuss in details WPT systems solutions for potential space applications exploiting both near-field and far-field techniques. In particular a lightweight and low-power system, combining RF-ID and beam-forming technologies, is described in details able to selectively powering battery-less devices pervasively distributed in the ambient. This solution is presented as a feasible implementation of portable satellite environmental testing and monitoring, thus allowing sensors reading in locations difficult to access. Subsequently a contactless system for high-power transfer (of the order of kW) is proposed as a reliable wireless transition in rotating joints, to get rid of wires, for both power transmission and data communication. In both cases design issues and the adopted practical solutions are discussed based on a rigorous implementation of a circuit-level design of the entire system, combining nonlinear and electromagnetic simulation.