Abstract
The performance of wireless power transfer system depends highly on antenna radiation efficiency, according to the theory. Practical problem of power transfer between electrically small antennas is their impedance match to standard transmission lines. This paper shows how the maximum power transfer efficiency can be reached with new design approach at 10 MHz. Various helical antenna designs are investigated and compared. A combination of two methods is proposed for increasing the radiation efficiency and the input resistance of spherical helical antenna. The results show that it is possible to achieve significantly higher power transfer efficiency at 10 MHz than in the reported literature. The wireless power transfer system consisted of two four-arm spherical helical antennas with k <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">res</sub> a = 0.064, can achieve maximum power transfer efficiency of 95 percent at 2 m.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.