frequency-diverse arrays design and control for accurate wireless power transmission

The frequency diversity of the antennas in the radiating system is a powerful strategy, that can lead a big improvement on wireless power transmission applications, but its characterization is merely theoretical in the literature. This work offers a deep and critical numerical analysis of frequency-diverse arrays and shows the advantages of the family with logarithmic distribution of the frequency for radio-frequency energy focusing goals. For the first time, these systems are analyzed through a Harmonic Balance-based simulation combined with the full-wave description of the array made of eight planar monopoles: the rigorous results confirm the potentialities of these complex radiating systems, in particular show how the time-dependency of the radiating mechanism can be favorably deployed. For the first time, an example of practical implementation of an FDA prototype using the SDR technology offered by the Zynq Ultrascale+ RFSoC ZCU111 Evaluation Kit for generation and control of the signals for each radiating element is also given in this work.