Low-impedance high-voltage coaxial cable

Abstract

The invention relates to a low-impedance high-voltage coaxial cable belonging to the technical field of pulse power. The invention is composed of N metal inner conductors, N inner insulating layers, a metal outer conductor, an outer insulating layer and metal connectors; N is more than or equal to 2; the N metal inner conductors and the N inner insulating layers form N high voltage wires; the N high voltage wires are arranged into n layers in the outer insulating layer; n is more than or equal to 2; the N inner insulating layers are mutually independent; the N metal inner conductors are respectively connected parallelly at two ends through two metal connectors so as to form the inner conductor of the low-impedance high-voltage coaxial cable; the N mutually independent inner insulating layers form the inner insulating layer of the low-impedance high-voltage coaxial cable; the outer insulating layer and the metal outer conductor are taken as the outer insulating layer and the outer conductor of the low-impedance high-voltage coaxial cable. Because the N high-voltage wires are connected parallelly, the impedance and the usage amount of the metal inner conductor are reduced, the problem of high turn radius resulted from directly increasing the diameters of the inner conductor and the outer conductor in the traditional low-impedance high-voltage coaxial cable is solved.

Description

technical field [0001] The invention relates to a low-impedance high-voltage coaxial cable, in particular to a low-impedance coaxial cable with high voltage and small turning radius, which belongs to the technical field of pulse power and is mainly used for pulse signal transmission and high-voltage square wave pulse generation. Background technique [0002] In the field of pulse power technology, high-voltage coaxial cables can be used to transmit high-voltage pulses, and can also be used as pulse-forming lines to generate high-voltage square wave pulses. After decades of development, the working voltage of high-voltage coaxial cables has increased from tens of kilovolts to hundreds of kilovolts, and has been used in various types of pulse power devices, such as transmission line transformers and solid-state pulse modulators. However, as the high-voltage coaxial cables for these devices, there are currently problems such as high impedance and large turning radius, which mak...

AI Technical Summary

Problems solved by technology

In order to ensure a certain working voltage and reduce the impedance, it is necessary to increase the diameters of the metal inner conductor, inner insulating layer and metal outer conductor at the same time, resulting in a larger volume of high-voltage coaxial cables and a larger turning radius [Chen Guoping, Luo Yikun , "Preparation of Low Impedance Coaxial Cable and Test Method for Adjustable Resistance", Digital Communication, 2014, Vol.41, No.6, pp.1-2]

[0004] The low-impedance high-voltage coaxial cables on the market generally have the problem of large diameter and large turning radius, which cannot meet the needs of compact high-power pulse power devices. Therefore, it is necessary to look for low-impedance high-voltage coaxial cables with small diameters and small turning radius Significant to the compactness of high-power pulsed power devices

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