Title :
Novel measurement technique of WPT circuits using VNA and its data transformation into 0-ohm system
Author :
Ishida, Tetsuya ; Yamaguchi, Kazuya ; Ishizaki, Toshio ; Awai, Ikuo
Author_Institution :
Ryukoku Univ., Otsu, Japan
Abstract :
A measurement method for wireless power transfer (WPT) system with 0-ohm source impedance is shown. WPT systems are often designed by the BPF design theory and a vector network analyzer (VNA) is normally used for measurement. Here, some difficulty comes up for 0-ohm system that is common for high-efficient switching power sources. This paper describes the transmitted power and the transmission efficiency of 0-ohm system which are calculated by S parameters measured by VNA. The method is very simple and is applicable not only for 0-ohm system, but also for other impedance systems.
Keywords :
S-parameters; electric impedance; measurement systems; microwave power transmission; network analysers; 0-ohm source impedance; 0-ohm system; BPF design theory; S parameters; VNA; WPT circuits; data transformation; high-efficient switching power sources; impedance systems; measurement technique; power transmission; transmission efficiency; vector network analyzer; wireless power transfer system; Band pass filters; Couplings; Impedance; Power measurement; Resistance; Scattering parameters; Simulation; 0 ohm power source; F-parameter; transmission efficiency; transmitted power; wireless power transfer;
Conference_Titel :
Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications (IMWS), 2012 IEEE MTT-S International
Conference_Location :
Kyoto
Print_ISBN :
978-1-4673-1777-1
DOI :
10.1109/IMWS.2012.6215800
