Ultra-wideband (UWB), short-pulse (SP) electromagnetics are now being used for an increasingly wide variety of applications, including collision avoidance radar, concealed object detection, and communications. Notable progress in UWB and SP technologies has been achieved by investigations of their theoretical bases and improvements in solid-state manufacturing, computers, and digitizers. UWB radar systems are also being used for mine clearing, oil pipeline inspections, archeology, geology, and electronic effects testing. This book 'Ultrawideband Short-Pulse Radio Systems' provides a comprehensive treatment of the methods, analysis, and practice of impulse and ultrawideband (UWB) systems. It presents key insight into cutting edge information on impulse and short-pulse wireless engineering together with practical guidance on how to build antennas and radio hardware for high-power impulse signals. During the last decade, there has been much progress on UWB technologies. To understand the behavior of UWB signals, the UWB propagation channel is measured and characterized. Different channel models for practical UWB systems have been proposed in multipath environments. Since UWB signals potentially have high resolution in ranging, the different UWB ranging systems, in multipath environments, have been investigated. It includes contributions from world-wide researchers and authors on electromagnetic theory, time-domain computational techniques, modeling, antennas, pulsed-power, UWB interactions, radar systems, UWB communications, and broadband systems and components.This book serves as an up to date guide for advanced graduate students, practitioners, and scientists working in these applications areas.