Fast switch and Blumlein line integrated high-pressure subnanosecond impulse source

Abstract

The invention relates to fast switch and Blumlein line integrated high-pressure subnanosecond impulse source belonging to the technical field of impulse power. The impulse source comprises a main impulse switch, a Blumlein line, a fast switch, a transmission line and a matching load, wherein the fast switch 5 is positioned in the Blumlein line part; the other end of the transmission line is connected with the matching load 6; and radial sealing structures are adopted in the directions of the inner diameter and the outer diameter of an insulating separator 4 of an internal barrel of the Blumlein line so as to generate air-liquid separation. According to the subnanosecond impulse source disclosed by the invention, the fast switch 5 is moved to be arranged at the output end of the Blumlein line part from the inside of the impulse source transmission line, so that the number of insulated parts in the impulse source is reduced, and the structure is relatively compact; simultaneously, the air pressure in the fast switch 5 is equal to that in the main impulse switch 1, when the pressure in the impulse source is balanced, the stress on an insulating separator 2 and the insulating separator 4 of the main impulse switch can be reduced, and the reliability of the impulse source is improved; and finally the shape of output impulses of the impulse source is changed, and the similarly square high-pressure subnanosecond impulse output can be obtained from the matching load.

Description

Technical field [0001] The invention relates to a high-voltage sub-nanosecond pulse source integrated with a fast switch and a Blumlein line, which realizes the compact structure of the high-voltage sub-nanosecond pulse source and the change of the output pulse shape, and obtains an approximately rectangular high-power sub-nanosecond pulse on a matching load. A nanosecond pulse output belongs to the technical field of pulse power. Background technique [0002] In the 1960s, J.C.Martin of the United Kingdom used A.D.Blumlein's dual transmission line technology on radar pulse modulators in pulse power technology, and successfully developed the world's first high-voltage nanosecond pulse source, creating a breakthrough in pulse power technology. new era. People call this kind of double transmission line Blumlein line. Compared with single transmission line, its advantage is that under the condition of complete impedance matching, the output voltage is equal to the charging vol...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing Blumlein type high-voltage sub-nanosecond pulse source has a large volume and the shape of the output pulse is a Gaussian pulse, the present invention proposes a high-voltage sub-nanosecond pulse source integrating a fast switch and a Blumlein line

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