Design of CMOS IR-UWB Transmitter with UWB Antenna

Abstract

Ultra-Wideband (UWB) communication has emerged as a high-potential wireless technology. Networks, detection and ranging, image processing and positioning systems all benefit greatly from it. Impulse radio ultra-wideband (IR-UWB) signals have a very wide transmission bandwidth and a very fast data throughput across short distances. The analysis and design of transmitter circuits and antennas for IR-UWB applications are discussed in this work. The circuits in concern are UWB signal generating circuits and UWB antenna, which work together to create entire UWB transmitter. This research focuses on UWB system that uses information-carrying ultra-short low-power pulses to transmit data using Gaussian monocycle pulse which is implemented in 90 nm CMOS technology and using Advanced Design System (ADS) software. The simulation shows 508 mV peak to peak pulse amplitude and the pulse width of 150 ps for the 1st derivative Gaussian monocycle pulse. Total power consumption of the transmitter circuit is also very low. The suggested IR-UWB transmitter offers an appealing technique of generating UWB signals for UWB communications and radar detection application.