Most commenters here are misunderstanding the paper. This is research on a wireless RF power transfer and low strength magnetic field sensing system for BCI sen

Most commenters here are misunderstanding the paper. This is research on a wireless RF power transfer and low strength magnetic field sensing system for BCI sensors. It is not about BCI sensors itself. This is about wireless power transfer and modulating the reflected signal to broadcast the sensor information. In other words your brain computer interface no longer needs a subdermal battery.