Pulsed Power Magnification Using Multiple Wound Transmission Lines

In this paper, a method for energy compression is described in which regular storage elements are replaced by segments of transmission lines. The fundamental of this method is the direct proportion of the appearance time of a traveling voltage pulse on a channel to the electrical length of it. According to this fact, if power pulses are fed into a group of transmission lines of different lengths at proportional different times, they will reach the end points simultaneously and generate a higher output peak power, as a result of a rise either in voltage, current or a combination of both. This magnification is achieved by a suitable connection mode at the end points of the transmission lines. Main goal of this approach rather than its capability of operation in extremely high frequencies with short rise and fall times of rectangular pulses, is that the switching elements in the system need to tolerate a much lower peak power than the compressed power reached to the load Another main aspect that is taken into consideration is the presence of the shield cable impedance contributing to the lines power loss. The very well known method used for minimizing these losses is winding the transmission lines to increase the line shielding inductance if coaxial cables are used. Therefore, herein, circuit models are presented to assess theoretically the temporal response of the wound coaxial pulsers by using SPICE circuit simulator. Copyright (C) 2010 Praise Worthy Prize S.r.l. - All rights reserved.