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Water load for efficiently absorbing microwave energy

A technology that absorbs microwaves and water loads, and is applied in the direction of electrical components, antennas, etc.

Active Publication Date: 2021-03-16
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a water load that absorbs microwave energy efficiently in view of the above-mentioned shortcomings, and it is proposed to solve how to make the water load of the coolant maintain high-efficiency absorption of microwave energy in a wide range of flow rates and temperature ranges, and ensure safety. And other issues

Method used

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  • Water load for efficiently absorbing microwave energy
  • Water load for efficiently absorbing microwave energy
  • Water load for efficiently absorbing microwave energy

Examples

Experimental program
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Embodiment 1

[0021] See attached Figure 1~3 . A water load for efficiently absorbing microwave energy, including a waveguide section 21, a metal shell 1, a metamaterial structure layer 3 and a spiral slideway 16; the metal shell 1 is provided with a feed port 2; the feed port 2 is used to receive The waveguide section 21 inputs microwaves to the inside of the metal casing 1; the metal casing 1 is provided with a metamaterial structure layer 3; the center of the metamaterial structure layer 3 is provided with an accommodation space 4; The inner wall of the accommodation space 4 is a spiral slideway 16 extending in a spiral shape; the spiral slideway 16 is used to guide the flowing cooling liquid; the relative permittivity of the metamaterial structure layer 3 gradually increases from the outside to the inside, so that The microwaves refracted through the metamaterial structure layer 3 are collected in the accommodation space 4 . It can be seen from the above structure that the microwave ...

Embodiment 2

[0023] See attached Figure 1~3 . A water load for efficiently absorbing microwave energy, including a waveguide section 21, a metal shell 1, a metamaterial structure layer 3 and a spiral slideway 16; the metal shell 1 is provided with a feed port 2; the feed port 2 is used to receive The waveguide section 21 inputs microwaves to the inside of the metal casing 1; the metal casing 1 is provided with a metamaterial structure layer 3; the center of the metamaterial structure layer 3 is provided with an accommodation space 4; The inner wall of the accommodation space 4 is a spiral slideway 16 extending in a spiral shape; the spiral slideway 16 is used to guide the flowing cooling liquid; the relative permittivity of the metamaterial structure layer 3 gradually increases from the outside to the inside, so that The microwaves refracted through the metamaterial structure layer 3 are collected in the accommodation space 4 . It can be seen from the above structure that the microwave ...

Embodiment 3

[0026] See attached Figure 1~3 . A water load for efficiently absorbing microwave energy, including a waveguide section 21, a metal shell 1, a metamaterial structure layer 3 and a spiral slideway 16; the metal shell 1 is provided with a feed port 2; the feed port 2 is used to receive The waveguide section 21 inputs microwaves to the inside of the metal casing 1; the metal casing 1 is provided with a metamaterial structure layer 3; the center of the metamaterial structure layer 3 is provided with an accommodation space 4; The inner wall of the accommodation space 4 is a spiral slideway 16 extending in a spiral shape; the spiral slideway 16 is used to guide the flowing cooling liquid; the relative permittivity of the metamaterial structure layer 3 gradually increases from the outside to the inside, so that The microwaves refracted through the metamaterial structure layer 3 are collected in the accommodation space 4 . It can be seen from the above structure that the microwave ...

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Abstract

The invention discloses a water load capable of efficiently absorbing microwave energy, which belongs to the technical field of microwave application, and comprises a waveguide section, a metal shell,a metamaterial structure layer and a spiral slideway, the metal shell is provided with a feed port; the feed port is used for receiving microwaves input into the metal shell by the waveguide section;a metamaterial structure layer is arranged in the metal shell; an accommodating space is formed in the center of the metamaterial structure layer; a spiral slideway which spirally extends along the inner wall of the accommodating space is arranged in the accommodating space; the spiral slideway is used for guiding flowing cooling liquid; and the relative dielectric constants of the metamaterial structure layer are gradually increased from outside to inside, so that microwaves passing through the metamaterial structure layer are gathered in the accommodating space. According to the water loadcapable of efficiently absorbing the microwave energy, the microwave energy can be efficiently absorbed when the temperature of the cooling liquid rises, so that the water load can normally work in alarge-range flow speed and temperature interval of the cooling liquid.

Description

technical field [0001] The invention belongs to the field of microwave application technology, and in particular relates to a water load for efficiently absorbing microwave energy. Background technique [0002] In high-power microwave industrial application systems, there will be more or less reflections during microwave transmission. Therefore, circulators and water loads are often used in industrial applications to absorb microwaves to protect microwave sources. As a commonly used terminal matching load, the water load is mainly composed of a waveguide transmission section and a microwave absorption cavity section. The waveguide transmission section uses pins for impedance transformation to ensure that the load end matches the microwave transmission of the waveguide, and the cooling fluid flows in the absorption cavity. The water chamber is sealed with a sealing ring between the water chamber and the metal cavity. The microwaves transmitted in the waveguide are absorbed ...

Claims

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Application Information

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IPC IPC(8): H01Q17/00
CPCH01Q17/00
Inventor 朱铧丞杨阳
Owner SICHUAN UNIV
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