Ultra-Wide Band (UWB) antenna offers coverage across a broad frequency spectrum while maintaining its power consumption at a relatively lower level. This enables UWB antenna to effectively contribute to variety of applications across a range of industries. This article aims to provide an overview of UWB antennas focusing on their functionality, applications, and associated advantages and challenges. Furthermore, it also explores key factors to consider when selecting a UWB antenna in order to serve as a guide to ensure the antenna’s optimal performance. Understanding UWB Technology: An Introduction Federal Communications Commission (FCC) defines Ultra-Wide Band (UWB) technology, as any wireless technology that occupies a bandwidth wider than 500 MHz or a fractional bandwidth greater than at least 20% of the carrier frequency. Typically ranging from 3.1 GHz to 10.6 GHz, UWB stands out from other similar technologies by its short pulse signal transmission capability. Due to this characteristic feature, UWB