Loading…
Quasioptics for increasing the beam efficiency of wireless power transfer systems
The highest beam efficiency in a wireless power transfer (WPT) system that uses focusing components was 51%, using a ≈ 3 m diameter reflector for a transfer distance of 7.62 m . We have beaten that record, and present here a system that surpasses it by 25%. Using the quasioptical framework for reduc...
Saved in:
Published in: | Scientific reports 2022-12, Vol.12 (1), p.20894-20894, Article 20894 |
---|---|
Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | The highest beam efficiency in a wireless power transfer (WPT) system that uses focusing components was 51%, using a
≈
3
m
diameter reflector for a transfer distance of
7.62
m
. We have beaten that record, and present here a system that surpasses it by 25%. Using the quasioptical framework for reducing spillover losses in WPT, we present a double-reflector system that achieved a higher beam efficiency than the state-of-the-art. The transmitting and receiving antennas were 3D-printed conical smooth-walled horn antennas, specially designed for this purpose. The theoretical analysis enabled the design of a
5
m
system, whose energy focus location has been experimentally verified. Then, the complete system was experimented upon, enabling a high beam transfer efficiency of 63.75%. Additionally, the advantage of using quasioptics in radiative wireless power transfer applications is discussed, as well as the sensitivity of its systems. Finally, a comparison with the state-of-the-art is done by the proposal of new figures-of-merit, relating the systems’ physical dimensions and beam efficiency. This research is a paradigm shift by presenting a promising path for future WPT research through quasioptics, whose high efficiencies may enable commercial applications of this technology for solving power supply issues in our society. |
---|---|
ISSN: | 2045-2322 2045-2322 |
DOI: | 10.1038/s41598-022-25251-w |