Wave723 writes: A new chip by Columbia University researchers uses a circulator made of silicon transistors to reroute signals and avoid interference from a transmitter and receiver that share the same antenna. This technology instantly doubles data capacity and could eventually be built into smartphones and tablets. The chip enables them to work around the principle of Lorentz Reciprocity, in which electromagnetic waves are thought to always travel along the same path both forward and backward. Traditionally, electronic devices required two antennas — a transmitter and receiver — that took turns or operated on different frequencies in order to exchange signals.
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Original URL: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/6Sn3tOp-yqY/new-full-duplex-radio-chip-transmits-and-receives-wireless-signals-at-once