University of Toronto researchers have shown that metamaterial reflectors can direct light
Metamaterials are synthetic structuresconsisting of building blocks that are shorter than the wavelength of light, so they can manipulate those waves. The material of Canadian scientists consists of repeating elementary cells about 20 millimeters in size. They form a single homogeneous object - a metasurface. It can be used for long wavelengths of light, such as microwaves, which are used to carry cell phone signals or digital data.
New metamaterials allow you to direct andamplify incoming rays. It will be useful in many areas, from medical imaging and solar panels to satellite communications. By adding the ability to direct a reflected beam, the new intelligent metamaterials will speed up wireless connectivity.
Engineers have copied the brain's neural connections onto a chip to make it think like a human.
“In everyday experience, microwaves emitted fromtowers reach an endpoint, such as a modem, and then return back to the telecommunications station, the researchers note. - This is why when you are talking on a cell phone, do not speak or listen on the same channel. If you did this, the signals would interfere, and you would not be able to distinguish your voice from the voice of the interlocutor. "
5G networks use half duplex channelscommunication. The signals are at slightly different frequencies or at the same time at different times to avoid interference. The time delay is invisible to the user. In contrast, the new full duplex architecture spatially separates the forward and return paths within the same frequency, which doubles the system capacity.
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