Circuit-Level Modeling and Simulation of Wireless Sensing and Energy Harvesting With Hybrid Magnetoelectric Antennas for Implantable Neural Devices

A magnetoelectric antenna (ME) can exhibit the dual capabilities of wireless energy harvesting and sensing at different frequencies. In this article, a behavioral circuit model for hybrid ME antennas is described to emulate radio frequency (RF) operations during simulations. The work interfaced with CMOS harvester chip towards goal developing communication link fully integrated implantable devices. One role system receive pulse-modulated power from nearby transmitter, another sense transmit low-magnitude neural signals. measurements reported in paper are first results that demonstrate simultaneous low-frequency magnetic high-frequency two frequencies one dual-mode antenna. proposed be utilized design optimizations circuits. Measurements were performed validate transfer an having 2.57 GHz resonance connected designed 65nm technology. Furthermore, enables concurrent using carrier signal matches second 63.63 MHz mode. test platform has been developed evaluation as tool implant design, prototype was provide experimental transmission magnetically modulated action potential waveforms.