The book provides an overview of the methods, analysis and practice of impulse and ultrawideband (UWB) systems. It can function as a practical guide on how to build antennas and radio hardware for high-power impulse signals, as it explains the scattering of ultrawideband electromagnetic pulses by conducting and dielectric objects, propagation, electromagnetic theory and actual practical systems. It also contains problem sets and details on models of signals and their spectral characteristics.