KR101151986B1

KR101151986B1 - Internal antenna and wireless devices having the same

Info

Publication number: KR101151986B1
Application number: KR1020100062140A
Authority: KR
Inventors: 권형준; 임기상; 김종수
Original assignee: 주식회사 아모텍
Priority date: 2010-06-29
Filing date: 2010-06-29
Publication date: 2012-06-01
Also published as: KR20120001390A

Abstract

A built-in antenna having a structure in which a part of the antenna in contact with the connecting member is formed in a single fold shape formed of one or more stages to have a structure that facilitates feeding to the antenna even when the gap between the case of the wireless device and the printed circuit board is changed. One wireless device is presented. The proposed internal antenna includes a first radiator mounted inside a case of a wireless device, a second radiator mounted on one side of a protrusion connected to the first radiator and formed inside the case, and a second radiator connected to the second radiator. It includes a third radiator mounted on the side and in contact with the connecting member connected to the feeder, the third radiator is a single fold shape formed of at least one end in accordance with the gap between the case and the circuit board.

Description

Internal antenna and wireless devices having the same

The present invention relates to a built-in antenna and a wireless device having the same, and more particularly, to a built-in antenna and a wireless device having the same embedded in a wireless device such as a mobile communication terminal, PMP, MP3.

Recently, in mounting the built-in antenna in the wireless device 100, the chip antenna 110 is pressed into the case 140 instead of the SMT type chip antenna (see FIG. 1) mounted on the printed circuit board 130. An apparatus type antenna (FIG. 2), which attaches the antenna 200 or the flexible circuit board antenna 300 (hereinafter referred to as “FPCB antenna”) to the case 140 and connects to the printed circuit board 130 through the connecting member 150. 2) are used a lot.

The wireless device 100, in which the press antenna 200 or the FPCB antenna 300 is used, has various shapes of protrusions 160 (ribs) inside the case 140 for contact between the connecting member 150 for power feeding and the antenna. It is formed in (see Fig. 2 (a) to Fig. 2 (c)). That is, the case 140 of the wireless device 100 is integrally formed with the protrusion 160 supporting the apparatus-type antenna through injection molding. At this time, the protrusion 160 is formed in a shape having the same curvature as the inner side of the case 140 so that the portion in contact with the connection member 150 is supported by the protrusion 160. Here, the connection member 150 is a member for feeding the antenna is used in the form of a clip (for example, C-Clip, etc.) and one side is connected to the feed line (not shown) of the printed circuit board 130 The other side is connected (contacted) with the instrument type antenna.

However, as shown in FIG. 3, when the distance D between the case 140 and the printed circuit board 130 increases, the protrusion 160 does not support the antenna, so that the connection member 150 and the antenna are in poor contact. This happens. In order to solve this problem, conventionally, a structure for changing the height of the protrusion 160 (see FIG. 4) and a structure for adjusting the size (that is, the height) of the connection member 150 (see FIG. 5) are used. The FPCB antenna may use a structure (see FIG. 6) to attach a reinforcing material to one surface of the antenna contacting the protrusion 160.

However, in the case of changing the height of the protrusion 160 in the conventional instrument type antenna, the height of the protrusion 160 must be formed high, so that the case 140 such as deformation or distortion of the protrusion 160 when the protrusion 160 is ejected. There is a problem in that the defective occurrence rate is increased.

In addition, in the case of changing the size (that is, the height) of the connection member 150 in the conventional instrument type antenna, the larger the distance (D) between the case 140 and the printed circuit board 130, the larger the size of the connection Member 150 should be used. When the size of the connecting member 150 is increased, the amount of pressing of the clip used as the connecting member 150 is changed, so that it is difficult to control the distance between the antenna and the connecting member 150, and that the reliability of the antenna is increased due to the breakage of the antenna and poor contact. There is a problem of deterioration.

In addition, when the reinforcing material is attached to the conventional FPCB antenna, the distance D between the case 140 and the printed circuit board 130 is farther than a predetermined distance (for example, D ″ in FIG. 7B). The height of the ground reinforcement should be increased, since the stepped portion of the FPCB antenna 300 and the reinforcement 400 because the FPCB antenna 300 is produced by punching after attaching the reinforcement to the FPCB antenna 300. ("A" in FIG. 6) causes a defect such as tearing or cracking, resulting in a decrease in the productivity of the antenna.

The present invention has been proposed in view of the above-described conventional problems, and an object thereof is to form a part of an antenna in contact with a connection member in a single contact shape formed of one or more stages, thereby causing variation in the gap between the case of the wireless device and the printed circuit board. To provide a built-in antenna and a wireless device having the same to have a structure that is easy to feed to the antenna at the time.

Another object of the present invention is to provide a built-in antenna and a wireless device having the same to minimize the occurrence of defects in the production of the antenna built in the wireless device, such as a press antenna and FPCB antenna.

Another object of the present invention is to provide a built-in antenna and a wireless device having the same, which firmly supports one side of a contact with a connection member when a gap between a case and a printed circuit board of the wireless device changes.

In order to achieve the above object, a built-in antenna according to an embodiment of the present invention, the first radiator mounted inside the case of the wireless device; A second radiator connected to the first radiator and mounted on one side of the protrusion formed inside the case; And a third radiator connected to the second radiator and mounted on an upper surface of the protrusion to contact the connection member connected to the feeder, wherein the third radiator is formed of at least one end in accordance with a gap between the case and the circuit board. It is a single fold shape.

The reinforcing material is attached to either of the upper surface and the lower surface of the third radiator.

The third radiator is provided with a plurality of reinforcing materials on either of the upper and lower surfaces.

Each of the plurality of stiffeners is mounted spaced apart from each other.

In order to achieve the above object, a built-in antenna according to another embodiment of the present invention, the radiator consisting of a flexible circuit board; And a plurality of reinforcing members mounted on one side of any one of an upper surface and a lower surface of the radiator, wherein the radiator is formed in a single fold shape in which one side on which the reinforcing member is mounted is formed of at least one end.

Each of the plurality of reinforcements is mounted to the radiator spaced apart from each other.

In order to achieve the above object, a built-in antenna according to another embodiment of the present invention, the first radiator mounted inside the case of the wireless device; A second radiator connected to one side of the first radiator and mounted on one side of a protrusion formed inside the case; A third radiator mounted on the other side of the protrusion; And a fourth radiator having both sides connected to the second radiator and the third radiator, respectively, and mounted on an upper surface of the protrusion.

One side is further connected to the fourth radiator, and the other side further comprises a fifth radiator mounted to the case.

The second radiator, the third radiator and the fourth radiator are formed in a "c" shape.

The third radiator and the fourth radiator are formed to have a length greater than or equal to the length of the protrusion, and the second radiator is spaced apart from the upper surface of the protrusion.

In order to achieve the above object, a wireless device according to an embodiment of the present invention includes the aforementioned built-in antenna.

The built-in antenna and the wireless device having the same according to the present invention form one side of the antenna mounted on the protrusion formed in the case in a single-fold shape, so that the connection member (feeding unit) is changed when the gap between the case and the printed circuit board of the wireless device is changed. Can be firmly supported on one side in contact with the c), and can easily provide power to the antenna.

In addition, the built-in antenna and a wireless device having the same is formed by one or more stages in which the antenna is provided with a plurality of reinforcing members spaced apart from each other, so that the connection member (feeding part) when the gap between the case and the printed circuit board of the wireless device is changed. One side that is in contact with and can be firmly supported, it is possible to provide a structure that is easy to feed to the antenna.

Incidentally, the built-in antenna and the wireless device having the same may be formed by forming one side of the antenna in a single folded shape or by forming one side having a plurality of reinforcing members spaced apart from the antenna in one or more stages, such as a press antenna and an FPCB antenna It is possible to minimize the occurrence of defects in the production of the antenna built into the device.

1 to 7 are views for explaining a conventional built-in antenna.
8 to 12 are diagrams for explaining the built-in antenna according to the first embodiment of the present invention.
13 and 14 illustrate a built-in antenna according to a second exemplary embodiment of the present invention.
15 and 16 are diagrams for explaining a built-in antenna according to a third embodiment of the present invention.

Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. . First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. Embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.

(Embodiment 1)

Hereinafter, the internal antenna according to the first embodiment of the present invention and a wireless device having the same will be described in detail with reference to the accompanying drawings. 8 to 12 are views for explaining the internal antenna according to the first embodiment of the present invention.

As shown in FIG. 8, the built-in antenna includes a first radiator 210, a second radiator 220, and a third radiator 230.

The first radiator 210 is mounted inside the case 140 of the wireless device 100. That is, the first radiator 210 is formed in a "-" shape and mounted on the inner surface of the case 140 of the wireless device 100.

The second radiator 220 is mounted on one side of the protrusion 160 formed inside the case 140. That is, the second radiator 220 is formed in the shape of “ㅣ” and is mounted on one side (eg, B of FIG. 9) of the protrusion 160 formed in the case 140. At this time, one side of the second radiator 220 is connected to the first radiator 210, the other side is connected to the third radiator (230).

The third radiator 230 is connected to the second radiator 220 and is mounted on the upper side of the protrusion 160 to be in contact with the connection member 150 connected to the feeder. The third radiator 230 is formed in a single fold shape formed of at least one end in accordance with a gap between the case 140 and the circuit board. That is, the third radiator 230 is formed in a single fold shape in which one side portion of the third radiator 230 rotates about the line (“A” in FIG. 8) and contacts the upper surface portion of the other side to form a stage. At this time, the third radiator 230 has an inverted dichroic shape (that is, the upper radiator 230a and the lower radiator 230b are in contact with each other.

"Shape, see Fig. 10 (a), the shape (that is, the upper radiating portion 230a and the intermediate radiating portion 230c is in contact, the intermediate radiating portion 230c and the lower radiating portion 230b is in contact with"""Shape, see Fig. 10 (b)), etc. It is formed in a single fold shape formed of one or more stages, etc. Here, the third radiator 230 determines the number of stages according to the distance from the protrusion 160, the thickness of the material do.

The third radiator 230 may be mounted on the reinforcing material 400 on any one of the upper surface and the lower surface. That is, one side of the third radiator 230 is connected to the second radiator 220, and the other side of the third radiator 230 is spaced apart from the upper radiator 230a and the lower radiator 230b.

“Shape” (see FIG. 11 (a)), an “d” shape (see FIG. 11 (b)) in which the upper radiating portion 230a and the intermediate radiating portion 230c and the lower radiating portion 230b are spaced apart. The reinforcement 400 may be mounted on one of the upper and lower surfaces of the third radiator 230 which is formed in the shape of a single fold and belongs to the spaced portion of each end.

Each of the plurality of reinforcing members 400 mounted on the third radiator 230 may be mounted to be spaced apart from each other. That is, as shown in (a) of FIG. 12, the reinforcement 400 having a thickness corresponding to half of the interval between the upper radiating portion 230a and the lower radiating portion 230b of the third radiator 230 is upper. The upper surface of the radiating portion 230a and the lower radiating portion 230b is mounted. The upper radiating part 230a of the third radiator 230 rotates in the direction of the lower radiating part 230b about the center line (“C” of FIG. 12A). Accordingly, the reinforcing member 400 mounted on the upper radiating part 230a and the reinforcing member 400 mounted on the lower radiating part 230b come into contact with each other to form a shape as illustrated in FIG. 12B.

In the wireless device 100 having a built-in antenna according to the first embodiment of the present invention, a protrusion 160 is formed on an inner surface of a case 140, and a power supply unit (not shown) is electrically connected to an upper surface of a circuit board. The connecting member 150 connected to the mounting is mounted (see FIG. 9). At this time, the built-in antenna is a lower surface of the third radiator 230 formed in a single fold shape is electrically connected to the connecting member 150, the upper surface is fixed by the protrusion 160. The wireless device 100 having such a structure may apply both the press antenna 200 and the FPCB antenna 300 to a built-in antenna.

As described above, the built-in antenna according to the first embodiment of the present invention and the wireless device having the same by forming one side of the antenna mounted on the protrusion 160 formed in the case 140 in the form of a single fold, When the gap between the case 140 and the printed circuit board 130 of the wireless device 100 can be firmly supported on one side in contact with the connection member 150 (feeding unit), it is easy to feed to the antenna A structure can be provided.

In addition, the built-in antenna and the wireless device 100 having the same according to the first embodiment of the present invention is formed by forming one side of the plurality of reinforcing members 400 spaced apart from the antenna in one or more stages, the wireless device 100 When the gap between the case 140 and the printed circuit board 130 of the connection member 150 can be firmly supported on one side in contact with the feeder (150), it can provide a structure that is easy to feed to the antenna have.

Incidentally, the built-in antenna and the wireless device 100 having the same according to the first embodiment of the present invention is formed on one side of the antenna in the form of a single fold, or the one side in which the plurality of reinforcement 400 is mounted spaced apart from the antenna By forming one or more stages, it is possible to minimize the occurrence of defects in the production of the antenna built in the wireless device 100, such as the press antenna 200 and the FPCB antenna 300.

In the first embodiment, the first antenna 210, the second radiator 220, and the third radiator 230 are divided to easily describe the built-in antenna, but the present invention is not limited thereto. .

(Second Embodiment)

Hereinafter, with reference to the accompanying drawings, a built-in antenna and a wireless device having the same according to a second embodiment of the present invention will be described in detail. 13 and 14 illustrate a built-in antenna according to a second exemplary embodiment of the present invention.

The built-in antenna includes a radiator 300 formed of a flexible circuit board, and a plurality of reinforcing members 400 mounted on one side of any one of an upper surface and a lower surface of the radiator 300. That is, the radiator 300 is composed of a flexible circuit board of "-" shape, the reinforcement 400 is mounted on the upper or lower surface of one side. At this time, the reinforcing material 400 is the height is determined according to the interval between the lower end of the protrusion 160 formed in the case 140 of the wireless device 100 and the radiator 300. Here, in order to solve the problem of the prior art of mounting the reinforcing material 400 of the same height as the spacing between the protrusions 160 and the radiator 300, 1/2 height of the spacing between the protrusions 160 and the radiator 300. The two reinforcing members 400 formed to have a predetermined interval are mounted on one surface of the radiator 300.

As shown in (a) of FIG. 13, the built-in antenna is mounted with two reinforcing members 400 spaced apart from each other on one lower surface of the radiator 300. At this time, the spacing of the reinforcing material 400 is preferably to be at least twice the height of the reinforcing material 400. Subsequently, as shown in FIG. 13B, one side of the radiator 300 is folded and rotated around the line “F” such that the upper surface of the reinforcing member 400 is in contact with each other. At this time, the radiator 300 is formed in a single fold shape in which one side on which the reinforcing material 400 is mounted is formed of at least one end. That is, as shown in Figure 14, by adhering the two reinforcing member 400 formed to have a height of H / 2 of the gap between the protrusion 160 and the radiator 300, the height of the reinforcing member 400 is a protrusion ( It is formed to be equal to the distance between the 160 and the radiator (that is, the height of the bonded reinforcement 400 is H). Of course, the n reinforcement 400 formed to have the H / n height of the interval between the protrusion 160 and the radiator 300 is mounted on the radiator so that the height of the reinforcement 400 is the distance between the protrusion 160 and the radiator It may be formed to be the same as (H).

In the wireless device 100 having a built-in antenna according to the second embodiment of the present invention, a protrusion 160 is formed on an inner surface of a case 140, and a power supply unit (not shown) is electrically connected to an upper surface of a circuit board. The connecting member 150 is connected to the mounting (see Fig. 15). At this time, the built-in antenna is the bottom surface of the radiator 300 is equipped with a reinforcing member 400 formed in a single fold shape is electrically connected to the connecting member 150, the top surface is fixed by the protrusion 160. The wireless device 100 having such a structure may apply the FPCB antenna 300 as a built-in antenna. Here, when the interval between the protrusion 160 and the radiator 300 is "H", the reinforcement 400 mounted to the built-in antenna is formed to have a height of "H / n".

As described above, the built-in antenna according to the second exemplary embodiment of the present invention forms one side of the antenna mounted on the protrusion 160 formed in the case 140 in the form of a single fold, thereby forming the case 140 of the wireless device 100. ) And the side of the contact with the connection member 150 (feeding unit) in the case of the variation of the gap between the and the printed circuit board 130 can be firmly supported, it is possible to provide a structure that is easy to feed to the antenna.

In addition, the built-in antenna according to the second embodiment of the present invention is formed by one or more stages in which one side of the plurality of reinforcement members 400 are spaced apart and mounted on the antenna, thereby the case 140 of the wireless device 100 and the printed circuit board. When the gap between the 130 is changed, it is possible to firmly support one side in contact with the connecting member 150 (feeding unit), it is possible to provide a structure that is easy to feed to the antenna.

Incidentally, the built-in antenna according to the second embodiment of the present invention is formed by forming one side of the antenna in a single fold, or by forming a side in which the plurality of reinforcing members 400 are mounted to the antenna in one or more stages, press antenna It is possible to minimize the occurrence of defects in the production of the antenna built in the wireless device 100 such as the (200) and FPCB antenna (300).

(Third Embodiment)

Hereinafter, the internal antenna according to the third embodiment of the present invention will be described in detail with reference to the accompanying drawings. 15 and 16 illustrate a built-in antenna according to a third exemplary embodiment of the present invention.

As shown in FIG. 15, the built-in antenna has a first radiator 210 mounted inside the case 140 of the wireless device 100, and one side is connected to the first radiator 210, and the inside of the case 140. The second radiator 220 mounted on one side of the protrusion 160 formed in the second projection, the third radiator 230 mounted on the other side of the protrusion 160, and both sides of the second radiator 220 and the third side. A fourth radiator 240 connected to the radiator 230 and mounted on the upper surface of the protrusion 160, and a fifth part connected to the fourth radiator 240 and a fifth part mounted on the case 140. And a radiator 250. At this time, the second radiator 220, the third radiator 230 and the fourth radiator 240 is formed in a "c" shape. The second radiator 220 and the third radiator 230 are formed to have a length greater than or equal to the length of the protrusion 160, and the fourth radiator 240 is spaced apart from the upper surface of the protrusion 160. That is, the case 140 may be formed by forming a “c” shaped radiator formed by the second radiator 220, the third radiator 230, and the fourth radiator 240 to have a height higher than the height of the protrusion 160. When the distance between the printed circuit board 130 and a predetermined distance away from the conventional problem that the incidence of defects such as deformation, distortion of the protrusions 160 during injection is increased, can be used as the connection member 150 Since the amount of pressing of the clip is changed, it is difficult to adjust the distance between the antenna and the connecting member 150, and the conventional problem of deteriorating reliability of the antenna due to breakage of the antenna and poor contact can be solved.

In a wireless device 100 having a built-in antenna according to a third embodiment of the present invention, a protrusion 160 is formed on an inner surface of a case 140, and a power supply unit (not shown) is electrically connected to an upper surface of a circuit board. The connecting member 150 connected to the mounting is mounted (see FIG. 16). At this time, the built-in antenna is formed in a "c" shape in which one side in contact with the protrusion 160 is rotated 90 degrees counterclockwise, it is mounted so that one surface of the fourth radiator 240 is in contact with the connection member 150. The wireless device 100 having such a structure may apply the press antenna 200 as a built-in antenna.

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 many variations and modifications may be made without departing from the scope of the present invention. It will be understood that the invention may be practiced.

100: wireless device 110: chip antenna
130: printed circuit board 140: case
150: connecting member 160: protrusion
200: press antenna 210: first radiator
220: second radiator 230: third radiator
230a: upper radiating part 230b: lower radiating part
230b: intermediate radiating part 240: fourth radiator
250: fifth radiator 300: FPCB antenna
400: reinforcement

Claims

A first radiator mounted inside a case of the wireless device;
A second radiator connected to the first radiator and mounted on one side of a protrusion formed inside the case; And
A third radiator connected to the second radiator and mounted on an upper side of the protrusion to contact a connection member connected to a feeder;
The third radiator is a built-in antenna, characterized in that the form of a single fold in one or more stages according to the distance between the case and the circuit board.

The method according to claim 1,
The third radiator,
Built-in antenna, characterized in that the reinforcing material is mounted on any one of the upper surface and the lower surface.

The method according to claim 1,
The third radiator has a built-in antenna, characterized in that a plurality of reinforcement is mounted on any one of the upper surface and the lower surface.

The method according to claim 3,
Built-in antenna, characterized in that each of the plurality of reinforcing materials are mounted spaced apart from each other.

A radiator composed of a flexible circuit board; And
It includes a plurality of reinforcing material is mounted on one side of any one of the upper and lower surfaces of the radiator,
The radiator is a built-in antenna, characterized in that formed on the one side of the reinforcement is mounted in a single fold shape formed of at least one end.

The method according to claim 5,
Each of the plurality of stiffeners are built-in antenna, characterized in that mounted to be spaced apart from each other.

delete

A radio apparatus comprising the built-in antenna according to any one of claims 1 to 6.