Inflation-free oval waveguide and preparation method thereof

An elliptical waveguide, air-free technology, used in waveguides, waveguide-type devices, electrical components, etc., can solve the problems of high and low temperature difference, improper installation, aging of waveguides, etc.

Pending Publication Date: 2018-07-13
上海阖煦微波技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the waveguide often has problems such as improper installation, waveguide aging, high and low temperature differences, etc., resulting in waveguide air leakage.
This will inevitably lead to high construction and maintenance costs of the waveguide; increased energy consumption

Method used

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  • Inflation-free oval waveguide and preparation method thereof
  • Inflation-free oval waveguide and preparation method thereof

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 and figure 2 As shown, in this embodiment, the air-free elliptical waveguide includes: a low-loss dielectric filling body 10 , an elliptical waveguide 20 and an outer sheath 30 . The inside of the elliptical waveguide 20 is filled with a low-loss dielectric filling body 10 . The low-loss dielectric filler 10 fills the corrugations of the elliptical waveguide 20 . The outer sheath 30 covers the outer wall of the elliptical waveguide 20 .

[0019] In this embodiment, the low-loss dielectric filling body 10 is physically foamed polyethylene; of course, other similar low-loss dielectric materials can be used, as long as the attenuation and reflection are not affected, and they will not be listed in detail. Physically expanded polyethylene is made by mixing high-density polyethylene (HDPE), low-density polyethylene (LDPE...

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Abstract

The invention provides an inflation-free oval waveguide which comprises a low-loss medium filling body, an oval waveguide tube and an outer jacket. The oval waveguide tube is filled with the low-lossmedium filling body, and the outer jacket is coated on the outer wall of the oval waveguide tube. The inflation-free oval waveguide has the advantages that through filling of a low-loss medium, the inside of the waveguide tube is enabled to be free of gas, so that the circumstance that water vapor flows backwards into the waveguide tube due to gas pressure difference is avoided, and long-time dryness in the oval waveguide can be ensured without using inflation equipment; mechanical strength of the waveguide tube can be improved slightly, and storage convenience is improved.

Description

technical field [0001] The invention relates to a waveguide and a preparation method thereof, in particular to an air-free elliptical waveguide and a preparation method thereof. Background technique [0002] In the case of exposure to the sun, the black outer sheath of the waveguide absorbs more heat, making the overall temperature of the waveguide above 50 degrees. Once it rains suddenly, the temperature inside the waveguide will drop sharply. In this case, the air pressure inside and outside the waveguide forms a large pressure difference, so that the water vapor outside the waveguide is sucked back into the waveguide. Condensation into water droplets after intrusion into water vapor will affect the attenuation and reflection performance of the waveguide. [0003] The existing technology is to fill the inside of the waveguide with dry air to maintain a positive pressure difference (10-30KPa), and to maintain the dry air inflator equipment regularly, so as to prevent the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P3/12H01P3/127H01P11/00C08J9/12C08L23/06
CPCH01P3/122C08J9/122C08J2203/06C08J2323/06C08J2423/06H01P3/127H01P11/002
Inventor 李慧勇王琦
Owner 上海阖煦微波技术有限公司
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