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

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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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

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