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The Clever Circuit That Doubles Bandwidth

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Radio prototype

This benchtop prototype of a new radio doubles capacity on cellular or Wi-Fi frequencies by generating signals that cancel so-called "self-interference."

Credit: Steven Hong

A startup spun out of Stanford says it has solved an age-old problem in radio communications with a new circuit and algorithm that allow data to be sent and received on the same radio frequency—thus doubling wireless capacity, at least in theory.

From Technology Review
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