Germany develops new high-speed wireless devices

Germany develops new high-speed wireless devices Karlsruhe Institute of Technology in Germany has developed a new wireless wide area network technology that has broken the fastest WiFi network speed record. Its fast download speed allows users 1 km away to download 40 GB per second. This is equivalent to 10 high-definition movies with duration of 2 hours each.

This technology uses frequencies up to 240 GHz (normal WiFi is usually 2.4 GHz or 5 GHz and 4G LTE frequencies are generally below 2.6 GHz). In order to deal with this high frequency, Karlsruhe Institute of Technology independently developed new hardware. Friends who are familiar with the radio know that the higher the frequency, the higher the transmission speed and the shorter the wavelength. However, the higher the frequency, the smaller the size of the antenna. Because the smaller the antenna is, the shorter wavelength (higher frequency) signal can be collected. Therefore, the chip size they developed must be very small, only a few millimeters!

In general, at high frequencies, water vapor in the air causes signal attenuation, but 240 GHz seems to be the least interfered with. In addition, since the transmission distance of such a device is much wider than that of an ordinary WiFi router, the device should be suitable for applications in rural areas where the deployment of optical fibers is inconvenient.

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