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Omni-directional antenna for train radio communications

A technology of radio communication and omnidirectional antenna, applied in the field of radio communication, can solve the problems of damage, unqualified antenna, deformation of reflector, etc., and achieve the effect of small and beautiful volume, qualified standing wave ratio and good shock resistance

Pending Publication Date: 2017-01-04
TIANJIN KAIXIN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is installed high, the antenna has a certain distance from the roof, and the reflective surface of the antenna is away from the antenna, which will cause the antenna's standing wave coefficient to be unsatisfactory, which will cause the antenna to be "unqualified" and make the antenna unusable, so it was formed at that time. Install the reflector under the antenna, the shape is round or square, although the standing wave ratio of the antenna is qualified, it will bring inconvenience to the installation
Moreover, due to the large area of ​​the reflector, the wind resistance during the train will cause deformation and damage to the reflector.

Method used

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  • Omni-directional antenna for train radio communications

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Embodiment Construction

[0013] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0014] like figure 1 As shown, a train radio communication omnidirectional antenna includes an antenna ground grid, and the antenna ground grid includes a ground grid skeleton 1 and three reflection rods 2 arranged on the same horizontal plane as the ground grid skeleton 1, and the two adjacent The distance between the reflective rods 2 is 120°. The reflective rods 2 are fixed and locked on the ground grid skeleton 1 through nuts and spring washers. The ground grid skeleton 1 adopts a die-cast aluminum structure; the diameter of the reflective rods 2 The antenna ground net is connected to the antenna main body 3 above, and the antenna main body 3 adopts a knife-shaped structure; the antenna main body 3 and the antenna ground net are fixedly connected by hex socket head screws 4.

[0015] Specific installation operation: the antenna main body 3 can...

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Abstract

The invention provides an omni-directional antenna for train radio communications, and the antenna comprises an antenna ground grid including a ground grid frame and three reflection rods arranged on the same horizontal plane of the ground grid frame, with adjacent two reflection rods being arranged with an angle of 120 degrees. The reflection rods are firmly fastened to the ground grid frame through nuts and spring gaskets. The ground grid frame adopts a die-casting aluminum structure. For the die-casting structure, the ground grid frame of the invention is firm enough to withstand shocks. When the antenna is arranged high, it can still meet the requirement on the antenna standing wave ratio. Convenient to be installed, the antenna does not get deformed or damaged easily.

Description

technical field [0001] The invention belongs to the technical field of radio communication, in particular to an omnidirectional antenna for train radio communication. Background technique [0002] Most of the locomotive antennas produced for trains are installed directly on the roof. If it is an old-style train or freight car, it needs to be elevated because the roof cannot be installed. If it is installed high, the antenna has a certain distance from the roof, and the reflective surface of the antenna is away from the antenna, which will cause the antenna standing wave coefficient to be unsatisfactory, which will cause the antenna to be "unqualified" and make the antenna unusable, so it was formed at that time. Install reflectors under the antenna, which are round or square in shape. Although the standing wave ratio of the antenna is acceptable, it brings inconvenience to the installation. Moreover, due to the relatively large area of ​​the reflecting plate, the wind resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q19/18H01Q1/32
CPCH01Q1/3275H01Q1/36H01Q1/48H01Q19/18
Inventor 曹鉴恒
Owner TIANJIN KAIXIN ELECTRONICS
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