This is the first time I hear about something like this. Very interesting.
"New Full Duplex Radio Chip Transmits and Receives Wireless Signals at Once"
New Full Duplex Radio Chip Transmits and Receives Wireless Signals at Once - IEEE Spectrum
"New Full Duplex Radio Chip Transmits and Receives Wireless Signals at Once"
New Full Duplex Radio Chip Transmits and Receives Wireless Signals at Once - IEEE Spectrum
"To achieve its efficiency, the new chip had to circumvent a longstanding principle called Lorentz Reciprocity, in which electromagnetic waves are thought to move along the same paths when traveling both backward and forward.
In the past, electrical engineers have bypassed reciprocity by designing elements called circulators built of magnetic materials. By applying a magnetic field, an engineer can disrupt reciprocity by permitting waves to flow only forward and not backward, which allows for the simultaneous transmission of two signals."