| Omnidirectional Resonator in X-Y Plane Using a Crisscross Structure for Wireless Power Transfer |
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Donggeon Kim1, Chulhun Seo2 |
1Department of Electronic Engineering, Soongsil University
2Soongsil University |
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| Abstract |
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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. |
| Key words:
Crisscross Structure, Omnidirectional Resonator in X-Y Plane, Resonant Coupling, Transfer Efficiency, Wireless Power Transfer |
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