Measurements for Wireless Power Transfer by Using NanoVNA

This paper suggests the use of Nano VNAs (Vector Network Analyzers) as a practical and cost-effective alternative to standard VNAs for the characterization of WPT links operating at low frequencies. Experimental data for a link operating at 7 MHz are reported and compared with those obtained through a standard VNA, thus demonstrating the good accuracy achievable with Nano VNAs.