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• n  a circuit that feeds back some of the output to the input of a system

• feedback loop

News & Articles

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• World’s Smallest FM Radio Transmitter Built With Graphene, ‘First Step’ For Advancing Wireless Signal Processing [PHOTO]
  Placing a sheet of atom-thin graphene into a feedback circuit causes spontaneous self-oscillation that can be tuned to create frequency-modulated (FM) signals. Changyao Chen, Sunwoo Lee, Columbia University
  Nov. 20, 2013 - International Business Times