ULTRA-WIDEBAND (UWB) WIRELESS TECHNOLOGY FOR APPLICATION

Abstract: Ultra-wideband (UWB) transmission has recently received great attention in both academia and industry for applications in wireless communications. It was among the CNN’s top 10 technologies to watch in 2004. A UWB system is defined as any radio system that has a 10-dB bandwidth larger than 20% of its center frequency, or has a 10-dB bandwidth equal to or larger than 500 MHz, The recent approval of UWB technology by Federal Communications Commission (FCC) of the United States reserves the unlicensed frequency band between 3.1 and 10.6 GHz (7.5 GHz) for indoor UWB wireless communication systems. It is expected that many conventional principles and approaches used for short-range wireless communications will be reevaluated and a new industrial sector in short-range (e.g., 10 m) wireless communications with high data rate (e.g., 400 Mbps) will be formed. Further, industrial standards IEEE 802.15.3a (high data rate) and IEEE 802.15.4a (very low data rate) based on UWB technology have been introduced.