Exploiting radar waveforms for wireless power transmission

In the wireless power transmission/transfer (WPT) research field, great efforts are currently being devoted to the design of specific types of waveforms which leads to high power conversion efficiencies. This is mainly achieved by using those communication signals with a large peak-to-average power ratio (PAPR). In this work, the exploitation of commonly-employed radar signals featuring this high PAPR characteristic is proposed for the first time for the WPT application. Experimental results are provided to demonstrate that the engineered approach outperforms conventional WPT schemes based on other classes of waveforms in terms of RF-to-DC power conversion efficiency.