Power interference cancellation for dual-band transcutaneous bio-implant systems

摘要

An integrated circuit structure for a dual-band transcutaneous bio-implant system that can remove the problematic power interference coupled into the weak data telemetry signal is presented. The unwanted effect of coupled power interference is efficiently suppressed through a feedback cancellation that directly annihilates the interference with an optimally tuned fraction of the received power signal by the implanted power receiver.