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Tri-band antenna of locomotive

A technology of frequency bands and antennas, applied in the field of locomotive three-band antennas, can solve problems such as undisclosed technical solutions, and achieve the effects of good radiation direction performance, high radiation gain, and small size

Active Publication Date: 2014-04-16
ALLWIN TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing literature has not yet disclosed the design of relevant technical solutions

Method used

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  • Tri-band antenna of locomotive
  • Tri-band antenna of locomotive
  • Tri-band antenna of locomotive

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Embodiment Construction

[0020] see figure 1 , figure 2 As shown, a three-band antenna for a locomotive comprises a base 7 and a half-wave metal plate vibrator located on the metal base 7; the base 7 is provided with a conductive connection with the half-wave metal plate vibrator The coaxial feed port 6; the half-wave metal plate vibrator is fixedly connected to the base 7 through the insulator 8.

[0021] The half-wave metal plate vibrator of the present invention includes an upright metal sheet branch 1, a first metal sheet-shaped side arm extension branch 2, a second metal sheet-shaped side arm extension branch 3, and a top metal sheet-shaped extension branch 4 and the bending extension piece branch 5; the top metal sheet extension branch 4 and the upright metal sheet branch 1 are in a "T" shape structure; the first metal sheet side arm extension branch 2 and the second metal sheet The branch 3 of the extension section of the side arm is respectively located on both sides of the branch 1 of the ...

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Abstract

The invention belongs to the field of locomotive antennas, in particular to a tri-band antenna of a locomotive, which can be installed on the top of the locomotive. The tri-band antenna of a locomotive comprises a base (7) and a half-wave metal tubular vibrator arranged on the metal base (7), wherein the base (7) is provided with a coaxial feed port (6) connected with the metal plate-type vibrator in a conducting mode; the half-wave metal tubular vibrator is fixedly connected with the base (7) by an insulator (8); the half-wave metal tubular vibrator comprises a vertical metal sheet branch (1), a first metal sheet shape side arm extending section branch (2), a second metal sheet shape side arm extending section branch (3), a roofing metal sheet shape extending section branch (4) and a bending extending section branch (5). The tri-band antenna covers a plurality of railway wireless communication frequency ranges, can reduce antenna volume, uses same antenna cover to realize two operating frequency range covering modes, and satisfies strict requirements on height and gain for covered working frequency ranges.

Description

technical field [0001] The invention belongs to the field of locomotive antennas, in particular to a locomotive three-band antenna that can be installed on the top of the locomotive. The antenna can realize the coverage modes of three frequency bands under the condition of the same antenna cover and antenna base. Background technique [0002] With the large-scale construction of my country's railways, the communication and dispatch of railway systems are playing an increasingly important role. At the same time, more and more wireless communication devices are applied to locomotives, which requires a lot of secondary antennas to be installed on the locomotives. However, due to the limited area on the top of the locomotive, it is difficult to arrange the installation positions of the antennas, and the signal isolation between the antennas is not enough, and there is high interference between them, which affects the communication quality. In order to ensure good communication...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/12H01Q1/36H01Q5/01H01Q5/10
Inventor 杜方胡颖徐勇
Owner ALLWIN TELECOMM