Mathematical Modeling of Peaking Switch

Abstract

Marx generator followed by a coaxial peaking stage can act as a high-power impulse source. Peaking stage consists of a peaking capacitor followed by a pressurized spark gap. This has been used in many civil and military applications, which includes pulsed radar to detect buried mines or buried people, the electromagnetic compatibility of electronic equipment, food irradiation etc [1]-[5]. A spark gap switch design with repetition rate of 1-1000 pps and average power up to 10 kW is discussed by Winands et. Al. [6]. Switch is being designd to obtain spherical launching waves for an impulse radiating antenna is explained by Serhat Altunc et al [7]. An empirical formula for the breakdown field strength for a high- pressure SF6- gas filled spark gap switch is being developed by H. Rahaman et al [8]. Dr. Carl. E. Baum implemented a high voltage switch with very low-rise time output pulse using an array of smaller voltage switches [9]. An empirical scaling relationship between the mean electric field and the breakdown time has been developed in [10]-[12]. The limit of spark gap technology for ultrafast switching is explored by T. H. Martin et al [11]. Rise time in pico second (100 ps domain) pulse is generated through a high-pressure mm spark gaps [13]-[17]. Pulse- charged spark gap based on GaAs semiconductor photoconductive switches are explained by Ming XU et al [18].