Optimized Ultra-Wideband Radiation of Dipole Antennas With Triangle Driving Pulses

This paper addresses optimization of transient radiation from dipole antennas in terms of minimized pulse extent in time or flat power spectral density. The former is a typical requirement for high-range-resolution radars while the latter can meet the Federal Communication Commission (FCC) regulations on spectrum usage. Recent needs and advances in ultra-wideband (UWB) signal processing, target identification, remote and subsurface sensing, reach-frequency tagging, secure communication, and others stimulate a variety of diverse studies in transient and broadband electromagnetics, including pulsed antennas. These generic problems have been widely explored through full-wave numerical analysis, theoretical and asymptotic approaches, nonlinear optimization methods combined with full-wave electromagnetic solvers, the E- and K-pulse signal processing techniques, and other fashions.