WO2022060045A1 - Small, slim broadband dipole antenna - Google Patents

Abstract

The present invention relates to a small, slim broadband dipole antenna. More particularly, the present invention is characterized in that several frequencies can be used by using a specifically shaped emitter of a single dipole antenna, thus making it possible to reduce the volume of the antenna and the cost of manufacturing a wireless communication device.

Description

Small Slim Broadband Dipole Antenna

The present invention relates to a small slim broadband dipole antenna, and more specifically, it can be formed into a three-dimensional shape by bending various parts of a dipole antenna made of a flat metal plate or copper plate, and formed of a flexible material into a three-dimensional shape through bending. It is characterized in that it can be formed and the volume of the antenna can be reduced.

In general, a dipole antenna is a basic antenna of wireless communication, also called a doublet antenna, and is a changing device for transmitting or receiving electromagnetic waves in a specific area.

Antenna converts electric signals in radio frequency bands into electromagnetic waves and transmits them, or vice versa, and converts electromagnetic waves into electric signals. It is widely used in the field. It mainly operates in the air or outer space on the ground or in the air, and there is a limitation in operation in water or the ground.

Recently, as wireless electronic devices, communication devices for vehicles, or smart phones are widely distributed along with miniaturization, miniaturization of antennas has also been required. There was a required problem.

Another problem is that it is difficult to have a minimum volume while serving as an antenna in a limited space such as a wireless electronic device, a communication device for a vehicle, or a smart phone.

Another problem is that there is a problem in that cost is added or quality is deteriorated due to the addition of parts by manufacturing using multiple antennas in order to use various frequency bands.

Accordingly, it is necessary to prepare various countermeasures to minimize the size while improving the performance of the antenna.

[Prior art literature]

[Patent Literature]

Republic of Korea Patent Publication No. 10-0826115

The present invention has been devised to solve the problems of the prior art, and an object of the present invention is to provide an antenna having a reduced volume by covering a wide band with a characteristically shaped radiator.

In addition, an object of the present invention is to provide a dipole antenna capable of covering frequencies of several bands to reduce cost and prevent quality degradation.

As a technical means for achieving the above-described technical problem, one aspect of the present invention is,

a first matching region in which at least one hole is formed; a second matching area having one side connected to the first matching area and having a space therein; and radiators formed on both sides of the second matching area. may include.

The small slim broadband dipole antenna may have a three-dimensional three-dimensional shape by bending at least one of the first matching area, the second matching area, and the radiator.

The first matching region may include a first bent portion formed to be bendable between the first matching region and the second matching region.

A bending angle of the first bent portion may be 120° or less.

The other side of the second matching region may include a second bent portion formed to be bendable.

The antenna may be formed on both sides of the second bent portion, and may include a first groove portion having an upper end in contact with the second matching region and a lower end in contact with the radiator.

The radiator may include a third bent portion spaced apart from the second matching region by a predetermined distance.

The radiator may be formed on the left and right sides based on the separation space, respectively, and may form a second groove formed from a lower end of the right radiator.

The radiator may be formed on the left and right sides of the separation space, respectively, from the right end of the right radiator, and may include a third groove having a length in a vertical direction.

At least one of the holes may be formed in connection with the separation space.

The antenna may be provided with at least one fixing groove for fixing the antenna to the device.

As described above, the small slim wideband dipole antenna according to the present invention covers a wideband frequency, thereby reducing costs by not using a plurality of antennas.

In addition, by bending a specific part of the radiator formed in the antenna, it is formed in three dimensions, thereby reducing the overall size of the product and reducing the volume, thereby making it suitable for product miniaturization.

In addition, it is possible to provide an antenna optimized for various types of loaded products.

1 is a schematic diagram showing Embodiment 1 of a small slim wideband dipole antenna according to an embodiment of the present invention.

2 is a schematic diagram showing Embodiment 2 of a small slim wideband dipole antenna according to an embodiment of the present invention.

3 is a schematic diagram showing a third embodiment of a small slim wideband dipole antenna according to an embodiment of the present invention.

4 is a schematic diagram showing a fourth embodiment of a small slim wideband dipole antenna according to an embodiment of the present invention.

5 is a schematic diagram showing a fifth embodiment of a small slim wideband dipole antenna according to an embodiment of the present invention.

6 is a schematic diagram showing Embodiment 6 of a small slim wideband dipole antenna according to an embodiment of the present invention.

7 is a schematic diagram showing Embodiment 7 of a small slim wideband dipole antenna according to an embodiment of the present invention.

8 is a schematic diagram illustrating a cable connected to a small slim broadband dipole according to an embodiment of the present invention.

Hereinafter, an embodiment with reference to FIGS. 1 to 7 will be described.

<Example 1>

Referring to FIG. 1 , a first matching region 10 , a second matching region 20 , and a radiator 30 are formed and have a shape passing through the middle of the second matching region 20 and the radiator 30 . The second bent portion 22 is formed so that the second matching region 20 and the radiator 30 are folded together, and the lower end of the radiator 30 formed on the left side of the radiator 30 has a second groove portion 32 . ) and has a dented shape and may be dented in a shape similar to that of the third groove part 33 at the upper end of the right radiator 30 .

<Example 2>

Referring to FIG. 2 , the first matching region 10 , the second matching region 20 , and the radiator 30 are formed and have a shape passing through the middle of the second matching region 20 and the radiator 30 . The second bent portion 22 is formed so that the second matching region 20 and the radiator 30 are folded together, and a groove is formed at the upper end of the radiator 30 on both sides to form a “L” shape on both sides. A groove having a shape similar to that of the second groove portion 32 is formed at the lower end of the left radiator 30 , and a groove may be formed at the left end.

<Example 3>

Referring to FIG. 3 , a first matching region 10 , a second matching region 20 , and a radiator 30 are formed, and the second bent portion 22 is formed above the second matching region 20 , and the The radiator 30 may have an upper side deleted based on the second bent part 22 , and a groove is formed at the lower end of the right radiator 30 , and a groove is also formed on the right side of the radiator 30 . A portion of the vertical length may be bendable through the third bending part 31 .

<Example 4>

Referring to FIG. 4 , a first matching region 10 , a second matching region 20 , and a radiator 30 are formed, and the second bent part 22 is formed below the radiator 30 , and the second 2 The matching region 20 and the radiator 30 are formed to be bent together, and may have a shape in which a part of upper ends of the left and right radiators 30 are removed, and a groove is formed at the lower end of the right radiator 30 . can be

<Example 5>

Referring to FIG. 5 , a first matching region 10 , a second matching region 20 , and a radiator 30 are formed, and the second bent portion 22 is formed above the second matching region 20 . The radiator 30 formed on the upper side based on , may have a shape removed, and the right radiator 30 may have a shape in which a groove is formed at the lower end.

<Example 6>

Referring to FIG. 6 , the first matching region 10 , the second matching region 20 , and the radiator 30 are formed and the second bent portion 22 formed above the second matching region 20 is a reference. As a result, the upper side of the right radiator 30 may be removed, the left radiator 30 may be partially removed, and the second matching region 20 has a width equal to the length of the second bent portion 22 . It may have a length upward in a state with 2 It may have a length upward in a state having a length longer than that of the bent portion 22 , and may have a shape in which a groove is formed at the lower end of the right radiator 30 .

<Example 7>

Referring to FIG. 7 , the first matching region 10 , the second matching region 20 , and the radiator 30 are formed, and the second matching region 20 is formed above the second bent portion 22 based on the second matching region 20 . ) may be partially extended to have the same width as the second bent part 22 and may have a width longer than the length of the second bent part 22 after a certain distance, and the right radiator 30 A groove is formed at the lower end of the , and a third groove part 33 is provided at the right end. It may be in a form that is formed to be bendable.

Hereinafter, the present invention will be described in more detail. However, the present invention may be embodied in various different forms, and the present invention is not limited by the embodiments described herein, and the present invention is only defined by the claims to be described later.

In addition, the terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the entire specification of the present invention, 'including' any component means that other components may be further included, rather than excluding other components, unless otherwise stated.

In addition, vertical and horizontal used in the present invention means that a state perpendicular to the ground is called vertical, and a state parallel to the ground is horizontal.

One aspect of the present application is

a first matching region 10 in which at least one hole 12 is formed; a second matching area 20 having one side connected to the first matching area 10 and having a separation space 21 therein; and radiators 30 formed on both sides of the second matching region 20; may include.

In one embodiment of the present application, at least one of the first matching region 10 , the second matching region 20 , and the radiator 30 may be bent to have a three-dimensional shape.

Hereinafter, a small slim wideband dipole antenna according to an aspect of the present application will be described in detail with reference to FIGS. 1 to 8 . At this time, FIG. 1 is a schematic diagram showing Embodiment 1 of a small slim wideband dipole antenna according to an embodiment of the present invention, and FIG. 2 is a diagram showing Embodiment 2 of a small slim wideband dipole antenna according to an embodiment of the present invention 3 is a schematic diagram showing Embodiment 3 of a small slim wideband dipole antenna according to an embodiment of the present invention, and FIG. 4 is a diagram showing Embodiment 4 of a small slim wideband dipole antenna according to an embodiment of the present invention 5 is a schematic diagram showing Embodiment 5 of a small slim wideband dipole antenna according to an embodiment of the present invention, and FIG. 6 is a diagram showing Embodiment 6 of a small slim wideband dipole antenna according to an embodiment of the present invention 7 is a schematic diagram showing Embodiment 7 of a small slim broadband dipole antenna according to an embodiment of the present invention, and FIG. 8 is a schematic diagram showing a cable connected to a small slim broadband dipole according to an embodiment of the present invention am. It will be described in detail in the following examples.

First, in one embodiment of the present application, the dipole antenna may be formed of a metal plate, a copper plate, or a flexible printed circuit board (FPCB) in which a pattern is formed on a synthetic resin film, etc., which the antenna uses electrical properties with reference to FIG. 1 . It may be desirable to form a conductor due to these characteristics. The first matching region 10 having one or more holes 12 is a portion covering a frequency of 4000 MHz to 6000 MHz.

In addition, the second matching region 20 may be a part covering a frequency of 1500 MHz to 4000 MHz, and as a part extending to the first matching region 10, a space 21 may be formed therein, where The separation space 21 may have a shape penetrating the entire second matching region 20 , and it may be preferable that the longitudinal direction thereof be formed in a vertical direction. The second matching region 20 is integrally formed on the upper end of the first matching region 10 , and the separation space 21 is a second matching region 20 directly connected to the first matching region 10 . ), so it is not separated and can maintain an integral shape.

In addition, the radiator 30 may be formed on both sides of the second matching region 20 , and may be provided in a shape extending to a portion of a side surface of the second matching region 20 and may have a length in a horizontal direction. . The length of a part of the side surface is preferably about half of the total length of the second matching region 20, but is not limited thereto.

In one embodiment of the present application, the first matching region 10 includes a first bent portion 11 formed to be bendable between the first matching region 10 and the second matching region 20 it could be The first bent portion 11 may be formed in a portion extending from the first matching region 10 to the second matching region 20 , and the frequency bands used in the first and second matching regions 20 are different from each other. Since they are different, they can be used without affecting bending. The first bent portion 11 may be formed to be thinner than the first and second matching regions 20 , and this is because a portion of the first and second matching regions 20 other than the first bent portion 11 is folded. This is to prevent performance degradation due to this.

In one embodiment of the present application, the bending angle of the first bent portion 11 may be 120° or less, preferably 30° to 120°, and most preferably about 90°. . The bending angle may be provided in various ways, but when it is formed within the angle range, the flow of electromagnetic waves may be most easily formed.

In one embodiment of the present application, the other side of the second matching region 20 may include a second bent portion 22 formed to be bendable. The other side formed on the opposite side to one side of the second matching region 20 in contact with the first matching region 10 may be formed in two branches due to the formation of the separation space 21, and spaced apart from the upper end by a certain distance It may be easily bent without affecting the second matching region 20 by the second bent portion 22 formed as thinly as the first bent portion 11 at the location. The position of the second bent portion 22 is preferably about half of the vertical length of the radiator 30, but is not limited thereto, and will be described in detail in the embodiment described below.

In one embodiment of the present application, the antenna is formed on both sides of the second bent portion 22, the upper end of which is in contact with the second matching region 20, and the lower end of the first groove portion is in contact with the radiator 30 ( 40) may be provided. The first groove portion 40 is formed as an empty space, and may be formed at the left and right ends of the second matching region 20, respectively, and may be formed on one side. The second matching region 20 in which the first groove portion 40 is formed may have a “L” shape with a portion removed from a quadrangle, but is not limited thereto and may be formed in various sizes.

In one embodiment of the present application, the radiator 30 may include a third bent portion 31 formed to be spaced apart from the second matching region 20 by a predetermined distance. The third bent portion 31 may be formed on both left and right sides of the radiator 30 , or may be formed on only one side. The third bent portion 31 is positioned at a predetermined distance from both ends of the radiator 30 , preferably to a degree not to interfere with radio wave transmission and reception, and the separation length is the length of the first matching region 10 . Any length may be appropriate. In addition, it may be formed on a part of the vertical length of the radiator 30 or may be formed on the entire length of the radiator 30 . According to the shape and size of the radiator 30, it may be formed in various shapes.

In one embodiment of the present application, the radiator 30 is formed on the left and right sides with respect to the separation space 21, respectively, and a second groove portion 32 formed from the lower end of the right radiator 30 is formed. may be forming. The second groove portion 32 may have a shape in which the radiator 30 is recessed inward, and the shape is not limited thereto.

In one embodiment of the present application, the radiator 30 is formed on the left and right sides, respectively, with respect to the separation space 21 , is formed from the right end of the right radiator 30 , and has a length in the horizontal direction. The branch may be provided with a third groove part (33). Referring to FIG. 7 , the third groove part 33 may have a shape in which the right end of the radiator 30 is dented like the second groove part 32 , but is not limited thereto. Accordingly, it can have various forms. The end of the radiator 30 may be divided into two by the third groove portion 33 , and the divided upper and lower radiators 30 can be bent based on the third bent portion 31 , and are bent respectively. It can be formed to be

In one embodiment of the present application, at least one of the holes 12 may be formed in connection with the separation space 21 . The separation space 21 is provided in a zigzag shape by forming the separation space 21 to make the length of the matching region through which current flows longer, and the first matching region 10 is also connected to the separation space 21 It serves to receive radio waves in the first matching region 10 . The spaced space 21 may be formed to be connected to the hole 12, a single hole 12 is formed, and the spaced space 21 may be formed so that the spaced space 21 is connected to one side of the hole 12, and a plurality of holes ( When 12) is formed, it may be provided in a shape connected to a single hole 12 formed in a vertical direction of the separation space.

In one embodiment of the present application, the antenna may be provided with at least one fixing groove 50 for fixing the antenna to the device. Since the antenna transmits and receives radio waves using its shape, it may be formed to be fixed to the device in use to prevent damage while maintaining the shape. The fixing groove 50 may be formed to allow the fixing device to pass therethrough.

In one embodiment of the present application, the antenna may be electrically connected through a cable. Referring to FIG. 1 , it is possible to make electrical connection possible after removing the sheath of the cable from the bent portion where the bend is formed in the separation space. The cable connected to the bent part may be formed from the lower right to the upper left, and may be used on the rear side of the antenna as well. It may be formed so that the shape of the cable varies according to the direction and angle of the bent portion, and it may be preferable to be connected in a vertical direction of the bent portion.

In one embodiment of the present application, referring to FIG. 8 , the cable may be formed as a coaxial cable, and may be formed in the order of an outer coating, an outer conductor, an insulator, and an inner conductor from the outside to the inside. When the outer conductor of the cable is connected to the second matching area formed on one side of the separation space, the second matching area formed on the other side of the separation space may be connected to the inner conductor. More specifically, the cable directed to the antenna through the outer coating may be one in which the bare external conductor is soldered (ground soldering area) at the point where it is connected to one side in the second matching area, and the inside is connected to the other side at the point where it is connected to the other side. The conductor may be soldered (feeder soldering area). Meanwhile, an insulator and/or an inner conductor may be formed between the ground soldering area and the power supply soldering area, but the inner conductor may be soldered in the feeder soldering area.

Above, the present invention has been described in detail with preferred embodiments with reference to the drawings, but the scope of the technical idea of the present invention is not limited to these drawings and examples. Accordingly, various modifications or equivalent ranges of embodiments may exist within the scope of the technical spirit of the present invention. Therefore, the scope of the technical idea according to the present invention should be interpreted by the claims, and the technical idea within the equivalent or equivalent scope should be interpreted as belonging to the scope of the present invention.

As described above, the small slim wideband dipole antenna according to the present invention covers a wideband frequency, thereby reducing costs by not using a plurality of antennas.

In addition, by bending a specific part of the radiator formed in the antenna, it is formed in three dimensions, thereby reducing the overall size of the product and reducing the volume, thereby making it suitable for product miniaturization.

In addition, it is possible to provide an antenna optimized for various types of loaded products.

Claims (11)

1. a first matching region 10 in which at least one hole 12 is formed;

   a second matching area 20 having one side connected to the first matching area 10 and having a separation space 21 therein; and

   Radiators 30 formed on both sides of the second matching region 20;

   Compact slim wideband dipole antenna with

   Small slim wideband dipole antenna.
2. According to claim 1,

   The small slim broadband dipole antenna,

   A small slim broadband dipole antenna, characterized in that at least one of the first matching region 10, the second matching region 20, and the radiator 30 is bent to have a three-dimensional shape.
3. According to claim 1,

   The first matching area (10) is a small slim broadband dipole, characterized in that it includes a first bending portion (11) formed to be bendable between the first matching area (10) and the second matching area (20) antenna.
4. 4. The method of claim 3,

   A small slim broadband dipole antenna, characterized in that the bending angle of the first bending portion 11 is 120° or less.
5. According to claim 1,

   A small slim broadband dipole antenna, characterized in that it includes a second bending portion (22) formed to be bendable on the other side of the second matching region (20).
6. 6. The method of claim 5,

   The antenna is formed on both sides of the second bent portion 22, the upper end abutting the second matching region 20, and the lower end having a first groove portion 40 in contact with the radiator 30. A compact slim broadband dipole antenna.
7. The method of claim 1,

   The radiator (30) is a small slim broadband dipole antenna, characterized in that it includes a third bent portion (31) formed to be spaced apart from the second matching region (20) by a predetermined distance.
8. The method of claim 1,

   The radiator 30 is formed on the left and right sides, respectively, with respect to the separation space 21 ,

   A small slim broadband dipole antenna, characterized in that forming a second groove (32) formed from the lower end of the right radiator (30).
9. The method of claim 1,

   The radiator 30 is formed on the left and right sides, respectively, with respect to the separation space 21 ,

   A small slim broadband dipole antenna formed from the right end of the right radiator (30) and having a third groove (33) having a length in a horizontal direction.
10. The method of claim 1,

    At least one of the holes (12) is a small slim broadband dipole antenna, characterized in that it is formed in connection with the separation space (21).
11. The method of claim 1,

    The antenna is a small slim broadband dipole antenna, characterized in that it has at least one fixing groove (50) for fixing the antenna to the device used.

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