Time-based RF showers for energy-aware power transmission

This paper proposes a review of the use of time-based arrays as RF energy providers in those wireless applications where an energy-aware transmission is of key importance. The higher simplicity and versatility of time-modulated arrays (TMAs) with respect to other modern radiating systems is deeply discussed: in particular, the multi-harmonic radiation capability of TMA is efficiently deployed in the smart wireless power transfer procedure. This two-step procedure is demonstrated through a 2.45 GHz 8-monopole planar array, by resorting to a rigorous co-simulation approach: it combines the Harmonic Balance technique, for the accurate description of the nonlinear switches, with the full-wave analysis of the array and its feeding network.