For those who believe wireless technology is the pinnacle of communication, think again. Scientists from Cornell University have created a new method that allows them to send and receive radio signals from a single chip — and it could forever change the world of wireless communication.
The major challenge with wireless technology comes from the difficulty of separating the bands. Our devices are designed to handle numerous different bands to support a plethora of different technology. Unfortunately, each one of these bands needs a filter in order to function properly. Separating all these different bands and signals adds up to a serious problem; at least it did until now.
The Cornell University scientists have worked out a way to separate the signals coming from all these wireless devices. Six transmitters are hooked together with an artificial transmission line. All of the subtransmitters are programmed to send signals at regular intervals. Their outputs are individually weighted and programmed to combine in such a way that they produce a radio frequency signal in the forward direction. As the signal moves forward it cancels out at the receive port. This allows the signals to be sent easily, with a minimum of fuss.
Each of the individual outputs can be programmed separately, allowing for simultaneous submission of frequencies. Additionally, the signal strength can be adjusted as needed for optimum effectiveness. The device cancels itself out at the end, reducing the need for a transmit signal. And as for all those bands usually needed? They’re adjusted digitally, making the device streamlined and simple.
Perhaps most impressive, the device works on a wide range of frequencies and is easily adaptable to whatever frequencies are available. In that way, it operates much like a broadband structure — only far more advanced and effective.
This device could dramatically change the way we view — and ultimately use — wireless technology. The latest updates would no longer require you to buy a whole new device. Instead, you could simply download upgrades and get back to your busy schedule.
To read the full paper, click here.
