Design of an ultra-wideband waveform shaping network using an analog microwave differentiator array fed by a Gaussian pulse signal

We propose a new method for the generation of ultra-wideband (UWB) signals which uses as much bandwidth as possible to maximize the emitted power. This method is different from the filtering approach which may be simple to generate UWB signals but lacks the capability of precisely shape and position UWB signal energy in the frequency spectrum. In our approach, we feed a Gaussian pulse into an analog microwave differentiator array, then, the outputs are combined by a suitably designed power combiner after appropriate signal amplifications and/or attenuations. Because the n-th order derivative of a Gaussian pulse moves the energy concentration part to a higher frequency band as n increases, we use this property to design the desired pulse whose energy is distributed at the desired frequency band to meet some specific regularity in UWB applications.