KR100386786B1 - Method and apparatus for resolving the twisting of antenna cable during rotation - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a directional antenna mounting device and method, and more particularly, to a technique of solving a twisting problem of a feeder connected to an antenna when rotated 360 ° in a rotating antenna that needs to rotate in order to change a propagation direction. It is about.

In the present invention, since the feeder and the copier are fixed, and only the reflector and the waveguide are rotated, the twisting of the feeder can be prevented at the source, thereby preventing the loss caused by the feeder and poor contact or poor feeder quality and deterioration. can do. In addition, in the directional antenna, since the high-speed rotation is possible in the same direction, propagation tracking requiring urgentness is possible, and an effect of shortening measurement time can be expected.

Description

METHOD AND APPARATUS FOR RESOLVING THE TWISTING OF ANTENNA CABLE DURING ROTATION}

The present invention relates to a technique that solves the twisting of the feeder line generated when the directional antenna rotates, in particular, in the rotation antenna that must be rotated to change the propagation direction, the problem of twisting the feeder connected to the antenna when rotated 360 ° It relates to a method and apparatus for solving the problem.

When the radio wave is to be transmitted in a specific direction, the antenna is aligned in the radiation direction so that the main lobe of the radiation pattern of the antenna corresponds to the direction to propagate. At this time, in the case of fixed communication, the direction of the antenna needs to be set and fixed only once, but in the case of the directional antenna for mobile communication relay, radio wave measurement, radio wave monitoring, and radio wave tracking, whenever the radio wave transmission position or radio wave reception position is changed. The antenna is rotated 360 °.

However, for example, in the case of a television broadcasting antenna mounted on a roof of a moving vehicle, a feed line connected to the antenna, that is, a high frequency cable, is twisted when the antenna directing direction is rotated by 360 ° or more in one direction. As a result, the antenna connection high frequency cable may be damaged or broken, or the shaft of the rotatable antenna may be broken.

In order to solve the antenna feed line twist problem, a method of rotating the antenna rotation azimuth angle up to 360 ° in one direction (for example, clockwise) and then rotating in the opposite direction (counterclockwise) is used. However, the above-described conventional technique is required to rapidly orient the antenna direction in a specific direction, such as in radio wave monitoring and radio wave tracking, for example, even when the azimuth angle is changed from 350 ° to 10 °. Instead of rotating 20 ° in the direction of 370 °, there is the inconvenience of rotating 340 ° in the opposite direction.

Accordingly, a first object of the present invention is to provide a method and apparatus for preventing twisting of an antenna feed line in a step of rotating a directional antenna.

It is a second object of the present invention to provide a method and an apparatus capable of continuously rotating a directional antenna in the same direction in addition to the first object.

1 is a view showing the configuration of a directional antenna according to the prior art.

2 is a view showing the basic principle of the Yagi antenna that solves the twisting of the feed line as an embodiment of the present invention.

Figure 3 is a view showing an embodiment of a directional antenna feed line twist break method according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: copier

20 reflector

30a, 30b, 30c, 30d: plural waveguides

40: feeder

50: feeder

70: support

80: center axis

100: pedestal

110: cylinder type rotator

120: central axis

130: second support

140: first support

In order to achieve the above object, the present invention is directed to a copier that is connected to a high frequency feeder to emit radio waves, a reflector that reflects radio waves radiated from the copier, and a radio wave that is directed by the copier and reflected by the reflector in a direction of interest. A directional antenna comprising a waveguide for generating a passage, the directional antenna being positioned on a central axis of a rotational movement of the directional antenna to open and fix the copier up and down at an upper end thereof and open to penetrate a feeder line electrically connected to the feeder. A lower end having a central axis mounted and fixed to the pedestal; Rotational movement is performed on the pedestal around the central axis, and a first support on which the reflector is mounted and a second support on which the waveguide is mounted are provided on the side, and the first support and the second support are mounted on the copier. The first and second supports are placed on a plane perpendicular to the central axis, and the radio waves are directed in a straight direction from the first support to the second support. Provided is a directional antenna comprising a rotating device.

Hereinafter, a preferred embodiment of the directional antenna mounting apparatus according to the present invention will be described in detail with reference to the accompanying drawings, FIGS.

1 is a view showing the configuration of a directional antenna according to the prior art. Referring to FIG. 1, a copier 10, a reflector 20, and a plurality of waveguides 30a, 30b, 30c, and 30d are mounted in a line on a support 70, and the support 70 is a central axis 80. It is physically connected to the) to make the circular motion 60 by using the support 70 as the radius of the circular motion. At this time, the prior art causes a problem that the feeder line 50 that supplies power to the feeder unit 40 is twisted.

2 is a diagram illustrating a basic principle of a Yagi antenna that solves twisting of a feed line as an embodiment of the present invention. Referring to Fig. 2, in the directional antenna including a corner reflective antenna and the like, taking yagi antenna as an example, in the present invention, the copier 10 is fixed and the reflector 20 and the waveguide 30 are used. It is characterized by the method of adjusting the propagation direction by rotating only the bay.

As a preferred embodiment of the present invention, the waveguide 30 may be configured in the form of an array in order to improve the directing effect, the reflector 20 is the waveguide 30 around the copier 10 It is characterized in that the mounting on the opposite side. That is, the technical gist of the present invention is characterized in that the reflector 20 and the waveguide 30 are rotatable while the copier 10 is fixed on the same plane as the copier 10.

Figure 3 is a view showing an embodiment of the directional antenna feed line twist cancellation method according to the present invention. Referring to FIG. 3, a copying machine 10 that radiates radio waves and a feeding part 40 electrically connected thereto to supply power from the feeder line 50 are erected up and down to be fixed to the central axis 120 of the rotational motion. It is.

On the other hand, the feeder line 50 electrically connected to the feeder part 40 penetrates through the internal open space of the central axis 120. In addition, the reflector 20 and the waveguides 30a, 30b, 30c, and 30d may be freely rotated 360 ° or more in one direction with respect to the central axis 120. The reflector 20 may include a first support ( 140) and the waveguides 30a, 30b, 30c, 30d are mounted on the second support.

At this time, the linear direction which connected the 1st support stand and the 2nd support stand becomes a direction which a wave propagates. In a preferred embodiment according to the present invention, the first support 140 and the second support 130 are attached to a rotator 110 in the form of a cylinder, the rotating device 110 is a fixed central axis 120 By rotating the circular motion around the direction of the radio wave is directed.

At this time, the rotary device 110 is physically connected on the pedestal 100 to have a structure such as a cog wheel or a rack and pinion to advance the circular motion.

The foregoing has outlined rather broadly the features and technical advantages of the present invention to better understand the claims of the invention which will be described later. Additional features and advantages that make up the claims of the present invention will be described below. It should be appreciated by those skilled in the art that the conception and specific embodiments of the invention disclosed may be readily used as a basis for designing or modifying other structures for carrying out similar purposes to the invention.

In addition, the inventive concepts and embodiments disclosed herein may be used by those skilled in the art as a basis for modifying or designing other structures for carrying out the same purposes of the present invention. In addition, such modifications or altered equivalent structures by those skilled in the art may be variously changed, substituted, and changed without departing from the spirit or scope of the invention described in the claims.

As described above, in the present invention, since the feeder and the copier are fixed and only the reflector and the waveguide are rotated, the twisting of the feeder can be prevented at the source. Can be prevented at the source.

In addition, in the directional antenna, since the high-speed rotation is possible in the same direction, propagation tracking requiring urgentness is possible, and the effect of reducing the measurement time can be expected.

Claims (4)

A directional antenna comprising a copier connected to a high frequency feed line to emit radio waves, a reflector reflecting radio waves radiated from the copier, and a waveguide for generating a propagation path for directing the radio waves emitted from the copier and reflected from the reflector in a desired direction To A feeding unit electrically connected to the copier to supply electric power from the feed line; Located in the central axis of the rotational movement of the directional antenna, the top of the copier is fixed upright and up and down, and has an open space to penetrate the feeder line electrically connected to the feeder to the inside and the lower end is mounted to the pedestal fixed to the central axis ; Rotational movement is performed on the pedestal around the central axis, and a first support on which the reflector is mounted and a second support on which the waveguide is mounted are provided on the side, and the first support and the second support are mounted on the copier. The first and second supports are placed on a plane perpendicular to the central axis, and the radio waves are directed in a straight direction from the first support to the second support. Rotator Directional antenna comprising a. The directional antenna of claim 1, wherein the directional antenna comprises a yagi antenna or a corner reflective antenna. A copying machine connected to a high frequency feed line to radiate radio waves, a reflector reflecting radio waves radiated from the copying machine, a feeder supplying electricity to the copying machine, and a radio wave radiated from the copying machine and reflected from the reflector in a desired direction In the directional antenna consisting of a waveguide for generating a propagation path so as to, The feeder line electrically connected to the feeder unit penetrates into an open space therein, and the copier is fixed by using a central axis that fixes the feeder unit and the copier to the pedestal of the directional antenna, and the center where the copier is fixed. And a reflector and the waveguide positioned on opposite sides of the copier on a support provided on both sidewalls of the cylinder frame which rotates about an axis. A copying machine connected to a high frequency feed line to radiate radio waves, a reflector reflecting radio waves radiated from the copying machine, a feeder supplying electricity to the copying machine, and a radio wave radiated from the copying machine and reflected from the reflector in a desired direction A method of arranging the copier, reflector, feeder and waveguide of a directional antenna comprised of a waveguide for generating a propagation path, The feeder line electrically connected to the feeder unit penetrates into an open space therein, and the copier is fixed by using a central axis that fixes the feeder unit and the copier to the pedestal of the directional antenna, and the center where the copier is fixed. The reflector and the waveguide are rotated to change the radiation direction by mounting the reflector and the waveguide in opposite directions with respect to the copier on a support provided on both sidewalls of the cylinder frame which rotates about an axis. The method of arranging the copier, the waveguide and the reflector of the directional antenna, characterized in that even if the feed line is not twisted.