Mid-Range Wireless Power Transfer at 100 MHz Using Magnetically Coupled Loop-Gap Resonators

@article{Roberts2021MidRangeWP,
  title={Mid-Range Wireless Power Transfer at 100 MHz Using Magnetically Coupled Loop-Gap Resonators},
  author={David M. Roberts and Aaron P. Clements and Rowan McDonald and Jake S. Bobowski and Thomas Johnson},
  journal={IEEE Transactions on Microwave Theory and Techniques},
  year={2021},
  volume={69},
  pages={3510-3527}
}
We describe efficient four-coil inductive power transfer (IPT) systems that operate at 100 MHz. The magnetically coupled transmitter and receiver were made from electrically small and high- ${Q}$ loop-gap resonators (LGRs). In contrast to the commonly used helical and spiral resonators, the LGR design has the distinct advantage that electric fields are strongly confined to the capacitive gap of the resonator. With negligible fringing electric fields in the surrounding space, the IPT system is… 

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