Stripline IGFET amplifier using charge carrier pulse - amplifies electromagnetic wave with steep leading edge

摘要

The stripline IGFET amplifier consists of an IGFET amplifier component and a stripline waveguide leading at an angle from source to drain such that the charge carrier wave travels with the velocity approximating the phase velocity of the electromagnetic wave at the place where the e.m. wave's leading edge appears. The charge carrier current pulse on the stripline amplifies the e.m. wave. This addition attempts to make this e.m. wave's (17) leading edge (20) as steep as possible. This it achieves by synchronising the charge wave (9) travelling from source (6) to drain (7) with the e.m. wave such that the front (15) of the charge wave coincides with the start (19) of the flat part (18) of the pulse of the e.m. wave.