This design demonstrates a high data rate implantable antenna for cortical visual prosthesis, indicating potential improvements in visual aid technology.
Abstract A compact wideband high data rate implantable antenna is designed for cortical visual prosthesis devices. In order to achieve high data rate, a metamaterial array with negative permeability is formed by loading complementary open resonant rings to reduce the resonant frequency of the antenna and produce circular polarization characteristics. By introducing a zigzag structure around the radiation unit, the antenna size is reduced to 11 × 11 × 0.635 mm³ and the impedance matching is optimized. A complete antenna model is established, and the biocompatibility, radiation characteristics and safety of the antenna are evaluated. The performance of the antenna is tested in a saline solution simulating the characteristics of cerebrospinal fluid. The measured impedance bandwidth is 24.4%, the axial ratio bandwidth is 19.3%, the gain is -21.6 dBi, and the effective communication distance is 4.2 m. The designed antenna has wide working frequency band, small size, good electromagnetic compatibility and high data rate communication ability, and is the optimal design scheme for cortical visual prosthesis.
No takes yet. Share an insight, caveat, or question.
Ou et al. (2025) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: