Ultra-wide band radio: introducing a new technology

UWB (ultra wide band) signaling is the modern art of reusing previously allocated RF bands by hiding signals under the noise floor. Government regulators are testing UWB emissions to ensure that adequate protection exists to current users of the communications bands, and are on the brink of authorizing its use. Technology basics for short-pulse time coded UWB and for a direct sequence UWB approach are described, and applications of UWB devices are presented. Commercial and government uses of UWB are described. Short pulse low power techniques have enabled practical through-the wall radars, centimeter precision 3D positioning and communications capabilities at high data rates.