PROPOSED UWB DEFINITION
ANY EMITTING DEVICE WHERE THE FRACTIONAL BANDWIDTH IS GREATER THAN 0.25 OR OCCUPIES 1.5 GHz* OR MORE OF SPECTRUM
THIS DEFINITION IS PROPOSED TO BE BASED ON THE -10 dB BANDWIDTH, MEASURED AFTER THE ANTENNA**, BECAUSE THESE DEVICES OPERATE SO CLOSE TO THE NOISE FLOOR
CENTER FREQUENCY IS THE AVERAGE OF THE UPPER AND LOWER -10 dB FREQUENCY POINTS
*The 1.5 GHz bandwidth floor would only apply where the center frequency is greater than 6 GHz.
**The antenna acts as a bandpass filter for UWB devices.