Extended Data Fig. 2: Characterization of the wireless power transfer performance.
From: A wireless and battery-less implant for multimodal closed-loop neuromodulation in small animals
a, A device mounted on an agarose gel rat model for measuring the effect of rat rearing angle on the wireless power transfer and device survival time. b, Experiment setup simulating the rearing of a rat at the corner of the cage. c, Experiment setup simulating the rearing of a rat at the center of the cage. d, The power received by the device at different heights and locations of the cage under an input RF power of 2 W. e, The power received by the device when the rat rears with different angles at the center and corner of the cage under an input RF power of 2 W. f, Device survival time (that is device working time before it loses power to support its operation) at different rat rearing angles. The device is started normally and then the rat holds a rearing angle for an extended period of time at the center and corner of the cage under an input RF power of 2 W. g, The power received by the device at different heights and locations of the cage under an input RF power of 6 W. h, The power received by the device when the rat rears with different angles at the center and corner of the cage under an input RF power of 6 W. i, Device survival time at different rat rearing angles under an input RF power of 6 W.
