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High-power microwave (HPM) medium window for improving vacuum side power capacity

A high-power microwave and power-capacity technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problem that the electric field polarization direction slot distribution cannot be determined.

Active Publication Date: 2014-11-05
NORTHWEST INST OF NUCLEAR TECH
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Problems solved by technology

However, in the edge region of the window face, that is, near the metal wall, TE 11 The electric fields of the modes are not parallel to each other, especially in circularly polarized TE 11 Under the action of electric field, the distribution of slots in the direction of electric field polarization cannot be determined

Method used

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  • High-power microwave (HPM) medium window for improving vacuum side power capacity
  • High-power microwave (HPM) medium window for improving vacuum side power capacity
  • High-power microwave (HPM) medium window for improving vacuum side power capacity

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Embodiment Construction

[0048] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0049] The invention provides a high-power microwave dielectric window which improves the power capacity of the vacuum side. The surface of the high-power microwave dielectric window is composed of several curved surface periodic structural units. In the present invention, the surface formed by the curved periodic structural unit is preferably a three-dimensional periodic function surface. The present invention constrains electrons in the functional structure through a three-dimensional periodic function surface, changes the trajectory, transit time and collision energy of the multiplied electrons, and uses microwaves (frequency f×10 9 Hz) The restoring force provided by ...

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Abstract

The invention belongs to the technical field of high-power microwave (HPM), and discloses an HPM medium window for improving vacuum side power capacity. The surface of the HPM medium window is composed of a plurality of curved surface periodic structure units. The medium window is provided with a three-dimensional periodic function surface which is like wavy ripples on the sea level. According to the principle of restraining multipactor, electrons are restrained in a unit function curved surface structure, the multipactor electron track and transit time are changed under the action of the restoring force provided by the microwave electric field force, and the impact energy of the electrons on a function curved surface lateral wall is reduced and made to be smaller than a first intersecting point of a quadratic yield curve. Meanwhile, the electron transit time is far shorter than a microwave half period, and therefore multipactor is restrained on the function curved surface lateral wall.

Description

technical field [0001] The invention relates to a high-power microwave dielectric window, in particular to a high-power microwave dielectric window which improves the power capacity of the vacuum side, and belongs to the technical field of high-power microwaves. Background technique [0002] High Power Microwave (HPM) refers to electromagnetic radiation with a peak power exceeding 100 MW and a frequency of 1 GHz to 300 GHz. HPM has very broad application prospects in scientific research, civil and national defense fields. [0003] In high-power microwave generating devices, the dielectric window is an indispensable and important component to ensure the vacuum environment required for microwave generation and to isolate the external atmosphere. With the improvement of peak power and pulse width of high-power microwave devices, especially the development of high-power and miniaturized microwave devices, the breakdown of the vacuum side of the dielectric window has become the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/08
Inventor 常超刘彦升黄文华李爽武晓龙郭乐田陈昌华
Owner NORTHWEST INST OF NUCLEAR TECH
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