Customized pulses for UWB applications

A new method for generating customized microwave pulses is proposed and demonstrated in this work. The method employs tailored microstrip lines that have been designed using an exact analytical series solution of the synthesis problem derived from the coupled-mode theory. This solution allows the synthesis of waveguides and transmission lines with arbitrary impulse responses limited only by the principles of causality, passivity, and stability. Time-domain measurements are performed demonstrating the generation of two pulses that molds the incoming energy using microstrip circuits and satisfying pre-established ultra-wideband (UWB) mask requirements intended for broadband applications. Moreover, an approach to obtain a significantly more compact solution is included.