Ultra Wide Band's
Ultra-wideband is?a radio technology that can use a very low energy level for short-range, high-bandwidth communications over a large portion of the radio?
It transmits data across short distances and precisely determines location by measuring how long it takes for a radio pulse to travel between devices.?As the name suggests, it also uses a wider frequency. The frequency range of Ultra-wideband is between 3.1 and 10.6 GHz. There is one drawback which is its short range, but that doesn’t matter much when you have two devices that are in a room together.
UWB's low-power signals cause little interference with other radio transmissions and?can effectively measure distance with an accuracy up to 10 cm (3.9 inches).?Decawave’s UWB chip?promises accuracy?even up to 2 cm (0.78 inches) in indoor environments. To compare Wi-Fi and Bluetooth accuracy is only up to 1 meter (39 inches) provided there are no obstructions.
What is UWB range?
UWB can determine the relative position of other devices?in the line of sight even up to 200 meters (656 feet)?based on the IEEE 802.15.4a standard.
Samsung, Apple and Huawei, the world’s largest smartphone makers, are all involved in UWB projects including chip and antenna production, according to Solis. Apple, however, is the first to actually deploy it in a phone.