Abstract
The demand for wireless power transfer via magnetic resonance coupling is increasing. Magnetic resonance coupling is a new technology that achieves power transfers across a large air gap by using transmitting and receiving antennas. However, repeater antennas can enable power transmission across an even larger distance. These repeater antennas without cross coupling can be expressed as a T-type equivalent circuit. Equivalent circuits that include cross coupling and mutual inductance, which is related to the antenna position, have not been studied. In this paper, a novel way to represent a repeater antenna by an equivalent circuit and a way to determine the mutual inductance are proposed and verifi ed by performing an electromagnetic fi eld analysis and experiment.
| Original language | English |
|---|---|
| Pages (from-to) | 51-62 |
| Number of pages | 12 |
| Journal | Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi) |
| Volume | 183 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 15 Apr 2013 |
Keywords
- magnetic coupling
- repeater antenna
- resonance
- wireless power transfer