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Ultra Wideband (UWB) - Wireless Technologies

Updated on May 18, 2010

Ultra Wideband

Ultra Wideband (UWB) is a radio technology that can be used at very low energy levels for high bandwidth communications in a short range. Technically speaking, it is a technology for transmitting information over a large bandwidth and this allows it to carry data rates of Gigabytes per second. It is feared that the the Ultra Wideband transmission may cause interference because it has such a wide bandwidth.

UWB Technologies

There are two Ultra Wideband technologies:

  • Direct sequence ultra wideband technology(DS UWB)
  • Multiband OFDM UWB

Direct sequence ultra wideband technology(DS UWB)
It is often referred to as an impulse, baseband or zero carrier technology. It sends Gaussian shaped pulses which are low-powered ones and are coherently received at the receiver end.

Multiband OFDM UWB
It is a form of UWB technology that is different in approach to DS UWB. It transmits data over multiple carriers spaced apart at precise frequencies, simultaneously. Fast Fourier Transform algorithms are used for capturing energy in a multi-path environment and this provide 100 percent efficiency.


UWB allows people go wireless in their lives in many ways like:

  • Videos recorded on digital camcorder can be played on HDTV without connecting wires.
  • Digital pictures can be transferred to photo printers without using the cables.
  • Similarly, speakers can be connected to the portable MP3 players without having to deal with wires.

In future, this technology is going to free many people from wires. Points given above are just a few examples of how it will allow us to remove wires in a short range and UWB will be adding much more functionality in future.

Technical Details & Stats

Frequency: Ultra Wideband transmissions can legally operate at a range of 3.1 GHz to 10.6 GHz

Range: About 10 meters

Power Consumption: Very low, less than 0.5 milliwatts

Data Transfer: Very high data rate

(This information may vary as UWB technology is not formally launched for public till now.)


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    • Ultimate Hubber profile image

      Ultimate Hubber 7 years ago

      Are you? What devices?

      Thank you for stopping by SMS!

    • save my system profile image

      save my system 7 years ago from United Kingdom - London

      Well written Hub and very informative as well. We are using many devices running on this technologies but do not know exactly technology behind it.