The technology employs a resonance-based wireless power transfer system designed for implantable devices operating in freely moving subjects. The transmitter side features a hexagonally arranged array of primary coils tuned via capacitive elements to achieve a specific resonant frequency and Q‑factor. A seven-loop driver coil array, linked to an RF power amplifier, activates targeted coils based on tracking signals from digital cameras. On the receiver end, a compact composite coil—integrating two planar spiral sub-coils with one helical sub-coil—captures the magnetic fields, rectifies, and filters the energy to power the implanted device.
