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New Wireless Data Transmission Can Send Contents of a Conventional DVD in Under 10 Seconds

E band transmitters with parabolic antenna. The installed integrated circuits achieve particularly high performance.
Fraunhofer Institute for Applied Solid State Physics / © Photo: Jörg Eisenbeis, KIT
With a data rate of 6 Gigabit per second over a distance of 37 kilometers, a collaborative project in Germany including researchers from the University of Stuttgart and the Fraunhofer Institute for Applied Solid State Physics IAF, has exceeded "the state of the art by a factor of 10" — equivalent to transmitting the contents of a conventional DVD in under ten seconds.

"The extremely high data rates of 6 Gbit/s was achieved by the group through efficient transmitters and receivers at a radio frequency of 71 — 76 GHz in the so-called E band, regulated for terrestrial and satellite broadcasting. Only in this frequency range of millimeter waves are the required high effective bandwidths available. Only here can the enormous data rates be realized. A further difficulty is the weake­ning of the signals over larger dis­tances."

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