Title :
A high-efficiency wireless power transmission circuit using coaxial resonators welded on a substrate
Author :
Zhang, Rongting ; Lin, X.Q. ; Li, Cong ; Cheng, Fan-Tien ; Fan, Y.
Author_Institution :
EHF Key Lab. of Fundamental Sci., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, a high-efficiency wireless power transmission (WPT) circuit for 15.22 MHz based on strongly coupled magnetic resonances is proposed using a new structure of coaxial resonators. The coaxial resonators are manufactured on a substrate. It has the advantages of compactness, ease of fabrication, high efficiency and low cost. The detail structure of the resonators and experimental results are presented. When it is a short-distance application, the efficiency of the circuit can be very high (91.62%) and when the distance increases to 1.5 times of the diameter (18 cm), still there is an efficiency of 52.48%.
Keywords :
circuit resonance; coaxial cables; coaxial waveguides; magnetic resonance; resonators; substrate integrated waveguides; welding; WPT; coaxial resonators; compactness advantage; ease-of-fabrication; frequency 15.22 MHz; high-efficiency wireless power transmission circuit; strongly coupled magnetic resonances; substrate; Antenna measurements; Coils; Copper; Educational institutions; Magnetic resonance; Substrates; Transmitters;
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2013
Conference_Location :
Chengdu
DOI :
10.1109/CSQRWC.2013.6657365
