A circuit that lets a radio send and receive data simultaneously over the same frequency could supercharge wireless data transfer. The circuit makes it possible for a radio to send and receive signals on the same channel simultaneously – something known as “full-duplex” communications. That should translate to a doubling of the rate at which information can be moved around wirelessly.
Today’s radios must send and receive at different times to avoid drowning out incoming signals with their own transmissions. As a smartphone accesses the Internet via a cell tower, for example, its radio flips back and forth between sending and receiving, similar way to the way two people having a conversation take turns to speak and listen.
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Circuit implementation of the non-reciprocal coupled-resonator loop at radio frequencies.
Nature Physics - Magnetic-free non-reciprocity and isolation based on parametrically modulated coupled-resonator loops
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Today’s radios must send and receive at different times to avoid drowning out incoming signals with their own transmissions. As a smartphone accesses the Internet via a cell tower, for example, its radio flips back and forth between sending and receiving, similar way to the way two people having a conversation take turns to speak and listen.
Circuit implementation of the non-reciprocal coupled-resonator loop at radio frequencies.
Nature Physics - Magnetic-free non-reciprocity and isolation based on parametrically modulated coupled-resonator loops
Read more »
