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Fabrication method of bendable metal dielectric hollow core terahertz waveguide

A metal dielectric and terahertz technology, applied in the field of terahertz waveguide preparation, can solve the problems of poor metal bonding and hard texture, and achieve broad application prospects, good bending performance, and low THz transmission loss.

Active Publication Date: 2021-10-15
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there have been many literature reports that the corresponding metal dielectric waveguide has been prepared by chemical liquid deposition coating method. However, the effect of growing a dielectric layer on the inner surface of the metal coating restricts its THz transmission performance to a certain extent. Disadvantages of chemical liquid deposition coatings on non-metallic surfaces. Common polystyrene (PS), polytetrafluoroethylene (PTFE), polycarbonate (PC), etc. have problems such as poor bonding with metals and hard texture. It can be seen that how to choose a suitable substrate and adopt a suitable process to make a hollow-core terahertz waveguide that is bendable, low-loss and excellent in transmission performance will appear to be very necessary.

Method used

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  • Fabrication method of bendable metal dielectric hollow core terahertz waveguide
  • Fabrication method of bendable metal dielectric hollow core terahertz waveguide
  • Fabrication method of bendable metal dielectric hollow core terahertz waveguide

Examples

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preparation example Construction

[0038] refer to figure 1 , the chemical preparation method comprises the steps of:

[0039] 1.1. Use polypropylene PP macromolecule plastic hollow round tube as base tube 1, use detergent and decontamination powder to wash base tube 1 for 5-15 minutes; rinse with deionized water and dry after washing;

[0040] 1.2. Build a support rod inside the base pipe 1, and build an outer casing outside the base pipe 1;

[0041] 1.2.1. Select the outer sleeve, rigid support rod and several support blocks. The rigid support rod and the base tube 1 are dynamically fitted and inserted into the base tube 1. The outer sleeve is set on the outside of the base tube 1. The support block is set on the rigid An annular gap between the support rod and the outer casing is defined between the base pipe 1 and the outer casing to form a casing to be plated;

[0042] 1.3. Build the plating tank

[0043] The coating tank is provided with a material inlet and a material outlet, and a peristaltic pump is...

Embodiment 1

[0064] refer to figure 1 , the chemical preparation method comprises the steps of:

[0065] 1.1. Use polypropylene PP polymer plastic hollow round tube as the base tube 1, with a nominal diameter of 8 mm, a wall thickness of 320 μm, and a length of 0.8 m; use detergent and decontamination powder to wash the base tube 1 for 10 minutes; Rinse with deionized water after washing and dry;

[0066] 1.2. Build a support rod inside the base pipe 1, and build an outer casing outside the base pipe 1;

[0067] 1.2.1. Select the outer sleeve, rigid support rod and several support blocks. The rigid support rod and the base tube 1 are dynamically fitted and inserted into the base tube 1. The outer sleeve is set on the outside of the base tube 1. The support block is set on the rigid An annular gap between the support rod and the outer casing is defined between the base pipe 1 and the outer casing to form a casing to be plated;

[0068] 1.3. Build the plating tank

[0069] The coating ta...

Embodiment 2

[0082] refer to figure 2 , the physical preparation method comprises the following steps:

[0083] 2.1. Use polypropylene PP polymer plastic hollow round tube as the base tube 1, with a nominal diameter of 8 mm, a wall thickness of 320 μm, and a length of 0.5 m; use detergent to wash the base tube 1 for 10 minutes; after washing, use Rinse with deionized water and dry;

[0084] 2.2. Select PTFE plastic hollow round tube as the auxiliary pipe 22, and use detergent to wash the auxiliary pipe 22 for 5 minutes; after washing, rinse with deionized water and dry;

[0085] 2.3. Set the auxiliary pipe 22 on the outside of the base pipe 1, and set a support sheet between the auxiliary pipe 22 and the base pipe 1. The thickness of the support sheet is 115 μm, and the support sheet limits the annular gap between the base pipe and the auxiliary pipe 22. The plug closes both ends of the base pipe 1 to form a pipe sleeve to be filled;

[0086] 2.4. Fill the gallium-indium alloy liquid m...

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Abstract

The invention discloses a preparation method of a flexible metal dielectric hollow-core terahertz waveguide. The invention includes a chemical preparation method, a physical preparation method and a mechanical preparation method; the invention adopts a polypropylene PP pipe as a base pipe and adopts a preparation method of an electroless coating Obtain silver layer hollow terahertz waveguide, adopt physical filling method to obtain hollow core terahertz waveguide with gallium indium alloy interlayer, or adopt mechanical film winding method to obtain copper metal thin film hollow terahertz waveguide. The invention adopts different processes to prepare a bendable metal dielectric hollow-core terahertz waveguide, which has the advantages of good bending performance, low THz transmission loss and low manufacturing cost, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of terahertz waveguide preparation, in particular to a method for preparing a bendable metal-dielectric hollow-core terahertz waveguide. Background technique [0002] Terahertz (THz, Terahertz) refers to electromagnetic waves with a frequency between 0.1 and 10 THz. It is an electromagnetic wave with a wavelength between infrared rays and microwaves. To achieve low loss and bendable transmission of THz waves, a relatively common and effective structure is to use a flexible polymer plastic tube with low absorption loss for THz waves as a medium, and cover a metal layer on its inner or outer surface , the THz wave is confined to the air core area and the dielectric layer in the waveguide, and the THz high reflection transmission is realized. At present, there have been many literature reports that the corresponding metal dielectric waveguide has been prepared by chemical liquid deposition coating method. Howe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/032H01P11/00
CPCG02B6/032H01P11/006
Inventor 敬承斌谢国兴钟熠潘瑾李桂顺刘晟鲁学会刘少华胡鸣徐剑程亚褚君浩
Owner EAST CHINA NORMAL UNIV