Pulse-forming line with reentry structure

Abstract

The invention belongs to the technical field of pulse power, relates to a pulse-forming line with a reentry structure and aims at reducing the axial length of the pulse-forming line. The pulse-forming line comprises three parts, namely a reentry forming line segment, a switching segment and a load segment. Three coaxial cylinders and an insulating medium of the reentry forming line segment form two pulse-forming lines; in other words, an outer line and an inner line are equal in electrical length and wave impedance; the matching impedance of the load is equal to the sum of the impedances of the outer line and the inner line. The pulse-forming line with the reentry structure has the beneficial effect that the output pulse width of the pulse-forming line with the reentry structure adopted is twice the output pulse width of a traditional pulse-forming line under the condition of the same axial length.

Description

Technical field [0001] The invention belongs to the technical field of pulse power, and relates to a pulse forming line with a re-entry structure, and the output pulse width can reach twice the traditional pulse forming line under the same length condition. Background technique [0002] Pulsed power technology is an emerging science and technology that studies the storage of energy for a relatively long period of time, then undergoes rapid compression, conversion, and finally release to the load. The research object is that the voltage is 10 4 ~10 7 V, current 10 3 ~10 7 Ampere, pulse width 10 -5 ~10 -10 Second, pulse power is greater than 10 6 Generation and application of W high-power pulses. [0003] In the pulse power device, if you want to obtain a high-voltage pulse with a fast leading edge and a flat top, a pulse forming line is generally required. Depending on the structure, there are coaxial lines, strip lines, etc., and the available pulse width and pulse forming line The...

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Problems solved by technology

When the pulse forming line is filled with high-voltage insulating gas or transformer oil, the ratio of the output pulse width to the length of the pulse forming line is 6.7ns / m and 10ns / m respectively. If it is required to output a high-voltage pulse with a pulse width of 100ns, pulse forming is required. The line lengths are 10m and 15m respectively, the system is huge and the project is very difficult

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