Swedish and Italian scientists have developed a theory that states that multiple radio channels simultaneously over the same frequency transmitted could be. Lack of bandwidth would be a thing of the past.
The theory by Bo Thide, a scientist at the Swedish Institutet för Rymdfysik, who collaborated with Italian researchers of the university of Padova, is on a small scale already tested. With a light custom zendschotel were two signals on the same frequency sent. At a relatively modest distance of 442 metres were two standard receivers drawn up, that the signals had. According to Thide would be the technique the bandwidth within a frequency range vertien or vertwintigvoudigd can be and in the long term is almost infinite and can be expanded.
The theory behind the demonstration is a vortex: the electromagnetic waves of a signal in the experiment is not only a torque to the axis of the signal, but also the orbital momentum, like a helix. By radio signals as different interwoven helices to encode, the electromagnetic sprectrum is much better exploited than with a ‘straight waves’. Thide calls this double-encoded radio signals with a helix-momentum’ radio vortex.
In the experiment, the helices easily generated with a modified satellite dish. The vortex is excited by a slot in the dish to make and one edge a few inches to bend forward. In this way, two wi-fi signals simultaneously over a frequency of 2,414 GHz sent and received by two antennas. The technique, however, would not be limited to wi-fi signals, but also radio and tv signals, mobile phone signals and 3g communication would be of the increased bandwidth can take advantage of.
