Compact Nanosecond Pulse Generator Based on Distributed Inductive Energy Storage of Twisted Pair Wire

High-voltage nanosecond pulse generators with compactness and repetition frequency have become a vital demand in some fields. In this article, the principle of inductive energy storage (IES) is applied to twisted pair wire (TPW), which serves as an energy storage unit for generating nanosecond pulse. As a kind of transmission line, the electromagnetic field constraint of TPW is realized by twisting, so it has greater bent flexibility than a coaxial transmission line, which makes it possess higher 3-D space utilization. Furthermore, an isolated superposition device (ISD) based on TPW is proposed for modular stacking. The inductive isolation effect between adjacent modules produced by ISD can ensure a more efficient power superimposition. Their parameter selection methods are studied and the components are developed accordingly. The application of TPW and ISD with small volumes makes it easy to achieve a compact pulse generator. Experiments of single-module circuits and multimodule superposition are carried out to verify the feasibility. Finally, a compact ten-stage high-voltage nanosecond pulse generator prototype is built, with a voltage amplitude of 10 kV and pulsewidth of 10.6 ns. It can operate at a repetition frequency of 200 kHz.