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| Content Provider | IET Digital Library |
|---|---|
| Author | Lu, Conghui Huang, Xiutao Rong, Cancan Hu, Zhaoyang Chen, Junfeng Tao, Xiong Wang, Shengming Wei, Bin Liu, Minghai |
| Abstract | The wireless power transfer (WPT) has attracted considerable attention due to its convenience and reliability. However, the electromagnetic leakage of WPT can be harmful to humans and environment. In order to meet safety requirements, electromagnetic leakage to the nearby transmission channel should be controlled below a certain level. Beyond ferrite and metallic shields, several researchers have proposed mu-near-zero metamaterial (MNZ MM). However, little work researches the application of MNZ MM in four-coil WPT systems. Here, the authors propose an optimised MNZ MM for shielding leaked electromagnetic field. Next, the authors setup a miniaturised WPT system loaded with MNZ slab at 13.56 MHz. It can serve as a frequency selector that reflected a specified frequency of 13.56 MHz, while allowing all other frequencies to pass undisturbed. As a result, the transmission efficiency is dramatically reduced at a 30 cm distance. The magnetic field magnitude of the receiver has been decreased. Obviously, the proposed MNZ MM has good performance in magnetic field shielding for WPT systems. |
| Starting Page | 1812 |
| Ending Page | 1815 |
| Page Count | 4 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 16, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8678 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-24 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
| Subject Keyword | Considerable Attention Distance 30.0 Cm Electromagnetic Compatibility Electromagnetic Field Electromagnetic Leakage Electromagnetic Metamaterials Ferrite Shields Four-coil WPT System Frequency 13.56 MHz Frequency Selector Inductive Power Transmission Interference Magnetic Field Magnitude Magnetic Field Shielding Magnetic Permeability Magnetic Shielding Metallic Shields Miniaturised WPT System MNZ Slab Mu-near-zero Metamaterial Optimised MNZ MM Specified Frequency Transmission Efficiency Wireless Power Transfer System Zero-permeability Metamaterial |
| Content Type | Text |
| Resource Type | Article |
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