Metamaterial-inspired resonator for a wireless power transfer system is proposed and studied numerically. The resonator consists of two orthogonal wire layers separated by a short distance. To reduce the resonant frequency from several hundreds of MHz it is placed in a background dielectric material with high permittivity. By tuning the permittivity of the background material, the radiation losses can be significantly reduced resulting in a high Q-factor of 900. The wireless power transfer efficiency greater than 80% from the wire resonator to a small loop receiver has been numerically demonstrated at the frequency of 19 MHz. The large area of the proposed resonator (50 cm 50 cm) offers a possibility to charge multiple receivers simultaneously.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - 1 Jan 2018|
|MoE publication type||A4 Article in a conference publication|
|Event||International Conference on Metamaterials and Nanophotonics - Sochi, Russian Federation|
Duration: 17 Sep 2018 → 21 Sep 2018
Conference number: 3