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1 Tbps or higher wireless data antenna

13.03.2013

The graphene antenna, which was developed by American scientists, is capable of providing wireless data transfer rates of 1 Tbps and higher and can be used at distances up to 1 m, as well as for data transmission between elements of the same crystal or printed circuit board. Scientists at the Georgia Institute of Technology have designed a graphene wireless antenna that can provide wireless data transfer rates of more than a terabit per second, that is, capable of transmitting several HD-resolution films per second, reports Technology Review.

"This is incredible speed. Today, it takes hours to copy data from one computer to another. New technology can reduce the procedure to a few seconds," commented Ian Akyildiz, head of the technology laboratory at Georgia Institute of Technology wireless connection. However, a graphene antenna is able to provide the specified speed at a short distance - only about 1 m. The smaller the distance, the higher the speed can be. The researchers calculated that at a distance of several centimeters, in theory, speeds of up to 100 Tbps can be achieved.

Graphene is a two-dimensional lattice of carbon atoms that has a honeycomb structure. Electrons in such a lattice move almost without resistance - 50-500 times faster than in a semiconductor. This material is considered promising for the creation of next-generation electronic components. To create an antenna, according to the team of researchers, graphene must be shaped into narrow strips with a width of 10 to 100 nm and a length of 1 micron, which will allow data transmission at the terahertz frequency. Electromagnetic waves at the terahertz frequency will lead to the emergence of plasmonic waves - the oscillation of atoms on the surface of graphene strips - which will allow data to be transmitted and received.

Graphene antennas can also be used to link nanoscale components on the same semiconductor, not just to link two systems. "The graphene antenna can be made much smaller than a conventional wire antenna. It can be a micrometer or a few nanometers in size. The bottom line is that such an antenna can be placed in very small objects," explained Phaedon Avouris, IBM Fellow Emeritus, who leads research in nanotechnology at the IBM Research Laboratory in New York. However, before creating such an antenna, scientists have to solve many problems. "The antenna cannot work on its own. It depends on a lot of other components - such as generators and detectors, amplifiers and filters. All of them must be created on the same scale and made to work at the same speeds in order to get a complete device," - the researchers explained.

A group of scientists from the Georgia Institute of Technology intends to create a prototype antenna within a year, and then add other components to it. The work is scheduled to be published in the IEEE Journal of Selected Areas in Communication in 2013.

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