Abstract
A magnetic resonance wireless power transfer (MR-WPT) system with a reconfigurable planar receiver (Rx) to optimize transfer efficiency (TE) for laptop application has been investigated. The proposed MR-WPT system consists of a general four-coil system: A source coil and a transmitter Tx) coil in a Tx part and an Rx coil and a load coil in an Rx part. To enable performance comparison, the Rx coil uses either a rectangular loop resonator or a slit ground resonator (SGR) and both resonators are connected with a p-i-n diode to reconfigure and optimize the MR-WPT system's TE along the transfer distance between the Tx and Rx parts. Mobile devices, including laptops, need a ground plane for practical use; therefore, the Rx coil is replaced by only an SGR, which operates as both a resonator and a ground. This letter, experimentally and theoretically proves that a reconfigurable MR-WPT system with an SGR has sufficient efficiency without the ferrite sheet typically used in practical MR-WPT applications.
| Original language | English |
|---|---|
| Pages (from-to) | 269-271 |
| Number of pages | 3 |
| Journal | IEEE Microwave and Wireless Components Letters |
| Volume | 28 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2018 |
Keywords
- Laptop application
- magnetic resonance (MR)
- reconfigurable resonators
- transfer efficiency (TE)
- wireless power transfer (WPT)
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