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Scientists in the US have made a major advancement in wireless technology, developing a Wi-Fi chip that only needs one antenna, instead of two, for transmitting and receiving.
While this was possible before, the bottleneck with transmitting and receiving from the same antenna meant that each function had to take turns, which throttles the capacity by half. This new chip solves that limitation, and in doing so, doubles the capacity (and speed) of wireless signals with a single antenna.
The system, called full-duplex communications, involves having the wireless transmitter and receiver of a radio working at the same time at the same frequency.
Electrical engineers from Columbia University achieved this last year using two antennae, but now the same team has managed to develop an even smaller component that only requires one.
“The way I like to think about it is it’s like having a conversation between two people where both people can talk at the same time and still listen to what the other person is saying,” says lead researcher Harish Krishnaswamy in the video below.
Source http://www.sciencealert.com/this-new-wi-fi-chip-doubles-wireless-speed-from-a-single-antenna