Omnidirectional Resonator in X-Y Plane Using a Crisscross Structure for Wireless Power Transfer
- Authors
- 김동건; 서철헌
- Issue Date
- Jul-2015
- Publisher
- 한국전자파학회
- Keywords
- Crisscross Structure; Omnidirectional Resonator in X-Y Plane; Resonant Coupling; Transfer Efficiency; Wireless Power Transfer.
- Citation
- Journal of Electromagnetic Engineering and Science, v.15, no.3, pp.194 - 198
- Journal Title
- Journal of Electromagnetic Engineering and Science
- Volume
- 15
- Number
- 3
- Start Page
- 194
- End Page
- 198
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/9360
- ISSN
- 2234-8409
- Abstract
- Magnetic resonant coupling is more efficient than inductive coupling for transferring power wirelessly over a distance. However, a conventional resonant wireless power transfer (WPT) system requires a transmitter and receiver pair in exactly coaxial positions. We propose a resonator that can serve as an omnidirectional WPT system. A magnetic field will be generated by the current flowed through the transmitter. This magnetic field radiates omnidirectionally in the x-y plane because of the crisscross structure characteristic of the transmitter. The proposed resonator is demonstrated by using a single port. To check the received S21 and transfer efficiency, we moved the receiver around the transmitter at different distances (50–350 mm). As a result, the transmission efficiency is found to be 48–54% at 200 mm.
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