UWB (Ultra Wide Band) came about because of a simple fact: all electrical appliances generate electromagnetic radiation, even when they are not meant to. If this radiation is too powerful, it can interfere with radio communications. That is why you have to switch off your computers and DVD players during airplane take off and landing. Before electronic devices can be retailed, manufacturers must demonstrate to regulatory bodies that their product does not emit radiation beyond certain power levels. Since many devices produce this low power radiation, it was decided to authorize intentional broadcast across a wide band of frequencies at low power levels.
In a nutshell: you can broadcast across as much of the spectrum as you like, but only with low power.
In practice, standard bodies allocate bands that are 500MHz or 1GHz wide. These bands are granted in the range of 3.1GHz to 10.6GHz. They are called channels and are numbered from X to Y. Our chips can use any of these channels to perform distance measurements in full compliance with both American and European standards.
Ultra Wide Band has many uses:
- It is ideal for distance measurement because it deals with very short pulses which enable precise time and distance assessment.
- It is very robust and noise immune because it uses such a wide spectrum that interference by narrow band systems do not affect its performance.
- It consumes very little power because the transmission strength in ultra-wide band has a low regulatory limit.
- It has built-in scalability and the communication link can be adjusted in terms of data bandwidth, sensitivity, recurrence, etc.