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Large-power waveguide load based on electromagnetic meta-material

An electromagnetic metamaterial, high-power technology, applied in waveguide-type devices, circuits, electrical components, etc., can solve the problems of affecting device performance, narrow absorption bandwidth, low absorption rate, etc., achieve light weight, reduce energy reflection, cost low effect

Inactive Publication Date: 2017-07-25
BEIJING INST OF RADIO MEASUREMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these materials have the disadvantages of high density, narrow absorption bandwidth, and low absorption rate, which affect the performance of the device.

Method used

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  • Large-power waveguide load based on electromagnetic meta-material
  • Large-power waveguide load based on electromagnetic meta-material
  • Large-power waveguide load based on electromagnetic meta-material

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Embodiment Construction

[0022] Hereinafter, the embodiments of the present invention will be described in detail with reference to the examples. The examples cited are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] Such as figure 1 with 2 As shown, a high-power waveguide load based on electromagnetic metamaterials includes a waveguide 1 for transmitting microwave signals and an absorber located in the waveguide 1. One end of the waveguide 1 is provided with an opening and one end is closed, and the opening is rectangular A flange 2 is installed at the end of the opening. The flange 2 is welded to the waveguide 1. The waveguide 1 has a V-shaped cavity 3, and the two sides of the V-shaped cavity 3 extend from the opening. The two broad sides extend toward the other end of the waveguide 1 and intersect with the end face of the other end of the waveguide 1, and the included angle of the V-shaped cavity 3 is θ, 0°<θ≤30°; the absorber is locate...

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Abstract

The invention relates to a large-power waveguide load based on an electromagnetic meta-material, and the waveguide load comprises a waveguide for transmitting a microwave signal, and also comprises an absorber which is located in the waveguide. One end of the waveguide is provided with an opening, and the other end of the waveguide is closed. One end with an opening is provided with a flange plate, and the interior of the waveguide is provided with a V-shaped cavity. Two sides surface of the V-shaped cavity respectively extend towards the other end of the waveguide from two opposite sides of the opening, and are intersected on the end face of the other end, wherein the inclined angle of the V-shaped cavity is theta which is greater than zero but not greater than 30 degrees. The absorber is located on an inner wall of the V-shaped cavity, and the absorber is made of a meta-material. According to the invention, the interior of the waveguide is provided with the V-shaped cavity, and the meta-material is welded on an inner wall of the V-shaped cavity in a mode of brazing, and serves as an absorption material, thereby reducing the size of the waveguide load, enabling the electromagnetic energy transmitted in the waveguide and the electromagnetic meta-material to be fully coupled and absorbed, and reducing the energy reflection.

Description

Technical field [0001] The invention relates to a waveguide load, in particular to a high-power waveguide load based on electromagnetic metamaterials. Background technique [0002] The waveguide load is a microwave component that is often used in the microwave field. The matched load is one of the most commonly used components. It is a single-port component that can absorb almost all input power. Generally, it consists of a section of waveguide and can absorb microwave power. It is composed of materials, which can absorb useless signals while achieving a traveling wave state in a certain part of the system. In communication systems and microwave measurement systems, it is often necessary to match the load to establish the traveling wave state of the system. There is also a mismatched load similar to the matched load structure, but with a slight change in size. It can absorb part of the microwave power and reflect part of the microwave power to make it mismatch with the original ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/26
CPCH01P1/264
Inventor 杨林明
Owner BEIJING INST OF RADIO MEASUREMENT
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