KR101672139B1 - Rotating type antenna and method for adjusting the beam direction of antenna using the same - Google Patents

Rotating type antenna and method for adjusting the beam direction of antenna using the same Download PDF

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Publication number
KR101672139B1
KR101672139B1 KR1020150107983A KR20150107983A KR101672139B1 KR 101672139 B1 KR101672139 B1 KR 101672139B1 KR 1020150107983 A KR1020150107983 A KR 1020150107983A KR 20150107983 A KR20150107983 A KR 20150107983A KR 101672139 B1 KR101672139 B1 KR 101672139B1
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KR
South Korea
Prior art keywords
antenna
rotation
housing
beam direction
unit
Prior art date
Application number
KR1020150107983A
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Korean (ko)
Inventor
박주상
윤호성
Original Assignee
주식회사 씨에스
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Publication date
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Priority to KR1020150107983A priority Critical patent/KR101672139B1/en
Application granted granted Critical
Publication of KR101672139B1 publication Critical patent/KR101672139B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
    • H01Q3/10—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation to produce a conical or spiral scan
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna

Abstract

The present invention relates to a rotatable antenna and a method of adjusting a beam direction of an antenna using the same.
According to an aspect of the present invention, there is provided a rotatable antenna including: a housing that houses an antenna element for transmitting and receiving an RF signal; A fixing shaft passing through the housing; And a rotation control unit disposed between the rotation unit and the fixed unit and controlling the rotation of the rotation unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a rotating type antenna, and a method of adjusting a beam direction of the antenna using the rotating type antenna. [0002]

The present invention relates to an antenna, and more particularly, to a rotatable antenna capable of adjusting a beam direction of a repeater antenna according to a beam direction of a base station antenna and a method of adjusting a beam direction of the antenna using the same.

It is very important to improve the quality of a signal transmitted / received between the mobile communication base station and the mobile station in order to improve the quality of service in the mobile communication system.

Various techniques are applied to each component of the mobile communication system, but it is essential to maximize the strength of signals received at the receiving antenna.

As a method for maximizing the intensity of a signal received by the antenna, there is a method of making the beam direction of the transmitting-side antenna coincide with the beam direction of the receiving-side antenna, as shown in FIG.

However, since the mobile communication terminal continuously moves, it is difficult to match the beam direction to the base station. Accordingly, an array antenna having a beam forming function is applied to the base station, and a beam forming technique is applied to the base station so that the beam direction is directed toward the terminal.

However, this beamforming technique can only be included in base station level equipment and is difficult to be included in a small or miniature repeater.

A mobile communication repeater is widely applied to provide mobile communication services in a shadow area where no base station signal is transmitted, and is classified into large, medium, small, and small according to the output.

Among them, small and very small size are mainly applied to a room such as a home or a shop, and it is not applicable because of its simple function and cost-wise to apply base-level beam forming technology. 2, the base station signal input may be limited to a low level by having a beam pattern in a direction different from the beam direction of the base station antenna according to the installation position of the antenna.

FIG. 3 is a view showing a configuration and an installation example of a door antenna for a repeater according to the related art. In this conventional technology, it is possible to change the direction of the antenna, but it is inconvenient to unscrew and screw, There is a disadvantage that a hole is formed in a wall surface of a house or the like by installing a wall mount. In addition, in the case of a pole cradle, there is a limitation in the installation environment, and there is a disadvantage that it is not easy to switch the antenna direction once it is installed.

Korean Patent No. 10-1503236

SUMMARY OF THE INVENTION It is a general object of the present invention to provide a rotatable antenna capable of substantially solving various problems caused by limitations and disadvantages of the prior art, And a method of adjusting the beam direction of the antenna.

It is still another specific object of the present invention to provide a rotation type antenna capable of adjusting a beam direction of an antenna by a simple method even when an antenna is installed and a method of adjusting a beam direction of the antenna using the same.

It is yet another specific object of the present invention to provide a rotatable antenna applicable to a small or very small mobile communication repeater and a method of adjusting a beam direction of an antenna using the same.

To this end, the rotary antenna according to an embodiment of the present invention includes a housing that houses an antenna element for transmitting and receiving an RF signal, and includes a rotating part that rotates around a fixed part; A fixing shaft passing through the housing; And a rotation control unit disposed between the rotation unit and the fixed unit and controlling the rotation of the rotation unit.

In a rotatable antenna according to an embodiment of the present invention, the antenna element may be designed such that the beam direction of the antenna is deflected at an arbitrary angle.

In the rotary antenna according to an embodiment of the present invention, the housing includes a lower housing on which a printed circuit board electrically connected to the antenna element is mounted; And an upper housing for protecting the printed circuit board and the antenna element and detachably coupled to the lower housing.

In a rotatable antenna according to an embodiment of the present invention, the antenna element includes a ground conductive plate electrically connected to a ground of the printed circuit board; A dielectric substrate laminated on the ground conductive plate; And an antenna pattern formed on the dielectric substrate, wherein a feed signal may be provided to the antenna pattern through a coaxial cable.

In the rotary antenna according to an embodiment of the present invention, the antenna element may be a patch antenna.

In the rotary antenna according to an embodiment of the present invention, the fixed shaft may be eccentric from the center of the housing.

In the rotary type antenna according to an embodiment of the present invention, the rotation control unit may be configured to stop the rotation unit when the external rotation force is stopped to be supplied to the rotation unit rotated by the external rotation force.

In the rotary antenna according to an embodiment of the present invention, the rotation control unit may include a pair of ratchet teeth and a pole.

In the rotary antenna according to an embodiment of the present invention, the rotation control unit may include a bush disposed between the fixed shaft and the rotation unit, and using a friction coefficient difference.

In the rotary antenna according to an embodiment of the present invention, the rotation control unit may further include at least one bearing disposed between the fixed shaft and the rotation unit.

The rotary antenna may further include a connection portion provided at one end of the fixed shaft and coupling the rotary antenna to a predetermined installation site.

In the rotary antenna according to an embodiment of the present invention, the connection portion may be either a double-sided tape or a fixing bracket.

The method of adjusting the beam direction of the antenna according to the present invention is characterized in that the direction of the beam of the antenna is adjusted while rotating the rotating antenna manually by providing a rotational force.

According to the rotary antenna of the present invention and the method of adjusting the beam direction of the antenna using the rotary antenna, it is possible to install the rotary antenna at a place such as a window or a pole stand, and then rotate the rotary antenna clockwise or counterclockwise The beam direction of the antenna can be adjusted to the base station direction.

In addition, according to the present invention, it is possible to improve the reception efficiency of the repeater antenna, for example, by adopting the rotary antenna, thereby improving the signal quality of the repeater service area.

In addition, according to the present invention, even when the beam direction of the base station antenna is changed or the position of the repeater is changed, the beam direction of the repeater antenna can be adjusted by a simple method without changing the installation position of the antenna.

FIG. 1 is a diagram for explaining a method of maximizing the strength of a signal received by a general reception-side antenna.
2 is a view for explaining a case where the beam direction of the repeater antenna is inconsistent with the beam direction of the base station antenna according to the antenna installation position.
3 is a diagram showing a configuration and an installation example of a conventional door antenna for a repeater.
4 is a perspective view of a rotatable antenna according to an embodiment of the present invention in which an upper housing is detached.
5 is a side cross-sectional view illustrating a configuration of a rotatable antenna according to an embodiment of the present invention.
6 is a cross-sectional view illustrating the structure of a patch antenna according to an embodiment of the present invention.
7 is a view showing an example of rotation of a rotary antenna according to an embodiment of the present invention.
FIG. 8 is a view showing an installation mode of a rotary antenna according to another embodiment of the present invention.
9 is a view for explaining a use state of the rotary antenna according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, the definition should be based on the contents throughout this specification.

The present invention provides a directional antenna in which a radiation pattern is deflected at a specific angle so as to be rotatable, fixes it at a specific position in a window or a room, and then rotates the antenna to adjust the beam direction to a desired direction.

FIGS. 4 to 6 are views showing the configuration of a rotary antenna according to an embodiment of the present invention. FIG. 4 is a perspective view of a rotary antenna according to an embodiment of the present invention, 5 is a side sectional view, and FIG. 6 is a cross-sectional view illustrating the structure of a patch antenna according to an embodiment of the present invention.

4 to 6, the rotary antenna 1 according to an embodiment of the present invention includes a rotation unit 100, a fixing unit 200, and a rotation control unit 300.

The rotation unit 100 is a portion rotated when an external rotational force is applied to the rotary antenna 1 and includes a lower housing 110, an upper housing 120, a printed circuit board 130, a patch antenna ) ≪ / RTI >

The lower housing 110 is for accommodating internal components of the rotary antenna 1 and can receive the printed circuit board 130, the patch antenna 140 and the rotation control unit 300.

The upper housing 120 is detachably connected to the lower housing 110 by for example an interference fit 125 or a screw connection and functions to protect internal components of the rotary antenna 1, The upper housing 120 may be provided with a feed hole 124 such that a beam direction indicator 122 indicating a beam direction of the antenna and a feeder line 149 pass through the upper housing 120.

The lower housing 110 and the upper housing 120 may be provided with through holes 126 so that the fixing shaft 210 of the fixing part 200 penetrates through the lower housing 110 and the upper housing 120.

In addition, the lower housing 110 and the upper housing 120 may be made of a dielectric material such as plastic, and may have a cylindrical shape, but may have various shapes.

Also, the housing may be formed as a single housing without being separated into the lower housing and the upper housing as in the present embodiment.

The printed circuit board 130 may be mounted on the lower housing 110, and a circuit may be formed to supply a signal to the patch antenna 140 and process a signal received from the antenna.

The patch antenna 140 is electrically connected to the printed circuit board 130 and transmits and receives an RF signal. The patch antenna 140 is formed by stacking a dielectric substrate 144 on a grounded conductive plate 142, And the antenna pattern 146 is formed on the dielectric substrate 144. [ That is, a metal pattern may be formed on a microstrip substrate in the form of a square or a circle, and then fed in various forms. The patch antenna may be made compact, lightweight, easy to fabricate, It is widely used because it can draw various characteristics through arrays.

Specifically, the ground conductor plate 142 is electrically connected to the ground of the printed circuit board 130, and may be made of a metal material.

The dielectric substrate 144 is disposed on the ground conductive plate 142 and the material of the dielectric substrate 144 may vary depending on the required dielectric constant.

The antenna pattern 146 is designed so that the beam direction of the antenna 1 is deflected at an arbitrary angle, for example, at a certain angle (for example, 45 degrees in the z-axis direction) with respect to the front surface, The size and shape of the pattern 146 may be determined by the frequency of use.

A feed signal is provided to the antenna pattern 146, and the feeding to the antenna pattern 146 can be performed in various ways. For example, the antenna pattern 146 and the feed pattern 148 are provided on the dielectric substrate 144, and the feed lines 149 of the coaxial cable are connected to the feed pattern 148, can do.

FIG. 7 illustrates a case where the antenna is rotated according to an embodiment of the present invention. For example, when the patch antenna is eccentric by 45 degrees, the beam direction of the antenna can be adjusted to 90 degrees to the left and right.

Meanwhile, although the antenna element is implemented by a patch antenna in the present embodiment, other types of antenna elements may be applied in addition to the patch antenna.

4 to 6, the fixing unit 200 includes a stationary shaft 210 and a connection unit 220, which are fixed without rotating when the antenna 1 rotates.

The fixed shaft 210 passes through the lower housing 110, the upper housing 120, and the printed circuit board 130, and the rotary unit 100 rotates around the fixed shaft 210.

Here, the fixed shaft 210 is eccentric from the center of the lower housing 110 and the upper housing 120, but the position of the fixed shaft 210 is determined by the shape and size of the antenna 1, 140, or the like, size, position, and the like.

The connection part 220 is for fixing the fixing shaft 210 to the installation place so that the rotary antenna 1 can be installed at a predetermined installation place. For example, when the installation place of the rotary antenna 1 is a window The connection unit 210 may be formed of a double-sided tape so that the fixed shaft 210 is attached to the window.

The connection unit 220 may be implemented in various forms according to the installation location of the rotary antenna 1. For example, as shown in FIG. 8, the connection unit 220 may be implemented as a bracket 222, The fixed shaft 210 of the antenna 1 can be coupled to the pillar 230 of the antenna.

4 to 6, the rotation control unit 300 allows the rotation unit 100 of the antenna to rotate about the fixing unit 200 while an external rotational force is applied to the rotation type antenna 1, For example, a ratchet wheel 310 and a pawl 320. The ratchet wheel 310 and the pawl 320 may be configured to rotate the rotating antenna 1 in the same direction.

That is, the pawl 320 and the ratchet wheel 310 are paired so that the antenna 1 rotates only in one direction. While the rotating force is externally applied, for example, Clockwise). That is, when the user holds the upper housing 120 of the antenna 1 by hand and turns it clockwise, the pawls 320 fixed to the upper housing 120 or the lower housing 110 are coupled to the fixed shaft 210, Along with the protrusions of the wheel 310, rotate clockwise together with the lower and upper housings 110, 120. At this time, the ratchet pawl 310 is fixed to the fixed shaft 210 and is fixed without rotating. If the user does not turn the antenna, the pawl 320 is fitted to the projection of the ratchet wheel 310, so that the lower and upper housings 110 and 120 stop rotating together.

The ratchet wheel 310 and the pawls 320 may be implemented in various forms. That is, although the pawl 320 rotates in this embodiment, the ratchet wheel 310 may be rotated according to the installation position of the ratchet wheel 310 and the pawl 320. [

Another example of the rotation control unit 300 may be a rotation control unit 300 which is provided between the rotation unit 100 and the fixing unit 200, that is, between the fixing shaft 210 and the lower housing 110, and between the fixing shaft 210 and the upper housing 120 A bush using a friction wheel (friction coefficient difference) is provided. When the rotational force is externally applied, the antenna 1 is rotated, and if the rotational force is no longer applied, the antenna 1 is stopped by the frictional force . Here, the bushes using the friction wheels can use various known techniques, for example, a method of lining with a non-conductive friction material is also possible.

In the case of configuring the rotation control unit with the bushing using the friction wheels as described above, the antenna can be rotated in both the clockwise direction and the counterclockwise direction.

The rotation control unit 300 may further include an upper bearing 330 and a lower bearing 330 to minimize friction between the rotary unit 100 and the fixing unit 200 when the rotary unit 100 rotates about the fixed shaft 210. [ (332). Here, the bearings may be composed of either the upper bearing 330 or the lower bearing 332, and various numbers and types of bearings may be suitably applied.

The upper and lower bearings 330 and 332 may be omitted as needed, for example, when a bush using a friction disc is applied between the rotary part 100 and the fixed part 200.

9 is a view for explaining a use state of the rotary antenna according to an embodiment of the present invention. As shown in FIG. 9, the rotary antenna 1 is attached to a window 500, 1 can be rotated to either one of the clockwise direction and the counterclockwise direction or both sides to adjust the beam direction of the antenna to the direction of the base station.

As described above, according to the present invention, the rotation direction of the antenna can be easily adjusted by rotating the rotatable antenna around the fixed axis.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. For example, each component described as a single type may be dispersedly implemented, and components described as being distributed in a similar manner may also be implemented in a combined form.

Accordingly, the scope of the present invention should be construed as being limited to the embodiments described, and it is intended that the scope of the present invention encompasses not only the following claims, but also equivalents thereto.

1: Rotary antenna 100:
110: lower housing 120: upper housing
130: printed circuit board 140: patch antenna
142: grounding conductor plate 144: dielectric substrate
146: Antenna pattern 148: Feed pattern
149: Feeder
200: fixing part 210: fixed shaft
220: connection part 300: rotation control part
310: ratchet wheel 320: pole
330: upper bearing 340: lower bearing

Claims (13)

A rotating part including a housing for receiving an antenna element for transmitting and receiving an RF signal, the rotating part rotating about a fixed part;
A fixing shaft passing through the housing;
And a rotation control unit disposed between the rotation unit and the fixed unit and controlling the rotation of the rotation unit,
The fixed shaft
And the antenna is eccentric from the center of the housing.
The antenna of claim 1, wherein the antenna element
Wherein the antenna is designed such that the beam direction of the antenna is deflected at an arbitrary angle.
2. The apparatus of claim 1, wherein the housing
A lower housing on which a printed circuit board electrically connected to the antenna element is mounted;
And an upper housing for protecting the printed circuit board and the antenna element and being detachably coupled to the lower housing.
The antenna of claim 3, wherein the antenna element
A ground conductive plate electrically connected to the ground of the printed circuit board;
A dielectric substrate laminated on the ground conductive plate;
And an antenna pattern formed on the dielectric substrate,
Wherein the antenna pattern is provided with a feed signal through a coaxial cable.
3. The system of claim 2, wherein the antenna element
Wherein the antenna is a patch antenna.
delete The apparatus of claim 1, wherein the rotation control unit
And stopping the rotation unit when the external rotation force is stopped to be supplied to the rotation unit rotated by the external rotation force.
The apparatus of claim 1, wherein the rotation control unit
And a pair of ratchet pawls and a pair of pawls.
The apparatus of claim 1, wherein the rotation control unit
And a bush which is disposed between the fixed shaft and the rotating part and uses a difference in friction coefficient.
The apparatus of claim 1, wherein the rotation control unit
Further comprising: at least one bearing disposed between the fixed shaft and the rotating portion.
The method according to claim 1,
Further comprising a connection portion provided at one end of the fixed shaft and coupling the rotary antenna to a predetermined installation site.
12. The apparatus according to claim 11,
A double-sided tape or a fixing bracket.
A method for adjusting the beam direction of an antenna, the method comprising: manually adjusting a beam direction of an antenna while rotating a rotating type antenna according to any one of claims 1 to 5 and 7 to 12, Way.
KR1020150107983A 2015-07-30 2015-07-30 Rotating type antenna and method for adjusting the beam direction of antenna using the same KR101672139B1 (en)

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KR1020150107983A KR101672139B1 (en) 2015-07-30 2015-07-30 Rotating type antenna and method for adjusting the beam direction of antenna using the same

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101795313B1 (en) * 2016-11-17 2017-11-07 주식회사 씨에스 Rotating type antenna with repeater

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030045405A (en) * 2001-12-04 2003-06-11 주식회사 아이디에스 Potable satellite antenna
KR101503236B1 (en) 2014-08-04 2015-03-18 주식회사 케이에스정보통신 Antenna Tilt Device For A Mobile Communication Repeater

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030045405A (en) * 2001-12-04 2003-06-11 주식회사 아이디에스 Potable satellite antenna
KR101503236B1 (en) 2014-08-04 2015-03-18 주식회사 케이에스정보통신 Antenna Tilt Device For A Mobile Communication Repeater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101795313B1 (en) * 2016-11-17 2017-11-07 주식회사 씨에스 Rotating type antenna with repeater

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