Simulation, design and test of a MOV pulse shaping device for high power microwave generators

This paper describes a metal oxide varistor (MOV) pulse shaping device, which is to be used for generating a flat-top voltage pulse for high power microwave devices. The MOV pulse-shaping device is attached to a coaxial pulse compression system. The pulse compression system consists of an inductive energy storage section, an exploding wire fuse and an output spark gap. The paper contains a detailed discussion of the pulse compression system followed by a description of the MOV pulse-shaping device. The MOV elements that are used for this pulse shaping application are the SIOV-E32VR602 type, made by Siemens.