New Technology May Double Radio Frequency Data Capacity

Columbia engineers have invented a technology--full-duplex radio integrated circuits--that can be implemented in nanoscale CMOS to enable simultaneous transmission and reception at the same frequency in a wireless radio. Up to now, this has been thought to be impossible: transmitters and receivers either work at different times or at the same time but at different frequencies. Electrical Engineering Professor Harish Krishnaswamy's team is the first to demonstrate an IC that can accomplish this.

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