KR100793036B1 - Mobile terminal having a bluetooth antenna - Google Patents

Abstract

A mobile terminal having a bluetooth antenna is provided to reduce signal interference by a metal circuit by adhering a nonconductive tape to a sub printed circuit board and patterning the bluetooth antenna thereon. A mobile terminal having a bluetooth antenna includes a blootooth module, a bluetooth antenna, a bluetooth contactor, and a feeding line(216). The bluetooth module is equipped on a main printed circuit board. In the bluetooth antenna, a power feeding unit and a radiation unit are patterned. The bluetooth contactor is equipped with a nonconductive contactor substrate(200) and a pair of contact protrusions(212,214,222,224) of the power feeding unit formed on the contactor substrate so that top and bottom surfaces of a sub printed circuit board(100) in which the power feeding unit is patterned is pressed by an elastic force. The feeding line electrically connects the bluetooth module and the bluetooth antenna to each other.

Description

Mobile terminal with Bluetooth antenna {MOBILE TERMINAL HAVING A BLUETOOTH ANTENNA}

1 is a schematic cross-sectional configuration of a mobile terminal according to the first embodiment.

Fig. 2 is a plan view of a sub printed circuit board according to the first embodiment.

3 is a perspective view of a Bluetooth connector according to the first embodiment;

4 is a plan view of a state in which a sub-printed circuit board according to Embodiment 1 is coupled with a Bluetooth connector.

5, 6 and 7 are perspective views of yet another Bluetooth contactor according to the first embodiment.

8 is a perspective view of a Bluetooth connector according to the second embodiment;

9 is a plan view of a sub-printed circuit board according to the second embodiment;

<Description of the symbols in the main part of the drawing>

100: sub printed circuit board

110: power supply unit 120: grounding unit

130: radiation unit 140: button signal unit

150: non-conductive tape

200: contactor substrate

210: feeder contact protrusion 212, 214: protrusion

212-P, 214-P: Feeding part pressing surface 216: Feeding line

220: ground contact contact 222, 224: projection

222-P, 224-P: Ground compression surface 226: Ground line

300: main printed circuit board 310: Bluetooth module

The present invention relates to a mobile terminal having a Bluetooth antenna, and more particularly to a mobile terminal having a Bluetooth communication function that can prevent the mounting area of the main printed circuit board is reduced.

Today, according to the development of electronic and information communication technology, a mobile terminal that can freely input and output communication and information when the user wants is widely used regardless of time and place. In view of the fact that the mobile terminal is always carried by the user, there are attempts to enhance the user's satisfaction by adding other functions such as a multimedia function and a Bluetooth function in addition to the wireless communication function.

A mobile terminal having a conventional Bluetooth function will be briefly described. In the conventional mobile terminal, a communication circuit region capable of implementing a communication function is formed on one side of a plate surface of a main printed circuit board, and a Bluetooth module for implementing a Bluetooth function is disposed on one side of the communication circuit region. The Bluetooth module is implemented in the form of a two-chip with a link controller chip including a Bluetooth baseband, a memory and a CPI, and a wireless (R / F) chip in charge of the radio part.

Meanwhile, in the conventional mobile terminal, a Bluetooth module is disposed on a plate surface of a main printed circuit board to implement a Bluetooth function, and the Bluetooth antenna uses an internal chip antenna or an external multi-band antenna. When mounted on the main printed circuit board there is a problem that the component mounting area of the main printed circuit board is relatively reduced or the transmission and reception sensitivity is reduced. In addition, when the external multi-band antenna is used, it receives other communication frequencies (DCN, PCS band) in addition to the Bluetooth band, which causes mutual interference between communication frequencies, so that additional components such as a separate diplexer, a switch, and a filter are overcome. There is a problem that this takes.

The present invention is to provide a mobile terminal having a Bluetooth antenna that is patterned to the sub-printed circuit board for the camera mounted on the side of the terminal to solve the above problems.

In addition, the present invention is to provide a mobile terminal that is easily connected to the power supply of the Bluetooth antenna and the Bluetooth module.

In addition, the present invention is to provide a mobile terminal that can reduce the signal interference by the metallic circuit printed on the sub-printed circuit board.

In addition, the present invention is to provide a mobile terminal with less signal interference with the main antenna located at the top of the terminal.

The present invention is a Bluetooth module provided on the main printed circuit board; A Bluetooth antenna having a feeding part and a radiating part patterned on a sub printed circuit board; Bluetooth having a contactor substrate which is an insulator and a pair of feeder contact protrusions which are elastic bodies formed on the contactor substrate so as to press the upper and lower surfaces of the feeder substrate having the patterned pattern when the sub printed circuit board is drawn in. A contactor; The present invention relates to a mobile terminal having a Bluetooth antenna including a feeding line for electrically connecting the Bluetooth module and the Bluetooth antenna.

Also in the present invention; At least one of the pair of feeder contact protrusions may be provided with a groove portion connected to the pair of pressing surfaces by changing the cross-sectional area from the feeder pressing surface for pressing the upper and lower surfaces of the sub printed circuit board to the outside. .

Also in the present invention; At least one of the pair of feeder contact projections is connected to the pair of feeder pressing surfaces by changing a width in a direction parallel to the feeder pressing surface while going from the feeder pressing surface to the outer surface. It may also form.

Also in the present invention; At least one of the pair of feeder contact protrusions may be formed to be connected to the pair of feeder pressing surfaces by varying the height protruding from the contact substrate while going from the feeder pressing surface to the outside. .

Also in the present invention; A ground portion is further patterned on the sub printed circuit board; The contact substrate further includes a pair of ground contacting protrusions which are elastic bodies so as to press the upper and lower surfaces of the patterned sub-circuit board when the sub-circuit board is pulled in; A ground wire may be connected to the ground portion.

Also in the present invention; At least one of the pair of ground contacting protrusions is formed with a groove portion connected to the pair of ground pressing surfaces by changing a cross-sectional area from the ground pressing surface to the outer surface of the sub printed circuit board. Sometimes.

Also in the present invention; A side button for a camera is provided on the side of the mobile terminal; The sub-printed circuit board is a flexible printed circuit board for a camera embedded in a side of the terminal and may have a button signal part for transmitting a predetermined signal by contact with a lower end of the side button for the camera.

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

Example 1

1 is a schematic cross-sectional view of a mobile terminal according to Embodiment 1, FIG. 2 is a plan view of a sub printed circuit board according to Embodiment 1, FIG. 3 is a perspective view of a Bluetooth connector according to Embodiment 1, and FIG. 4 Shows a plan view of a state in which a sub-printed circuit board according to Embodiment 1 is coupled with a Bluetooth connector.

Referring to FIG. 1, the first embodiment includes a sub printed circuit board 100, a feeding line 216, a ground line 226, a Bluetooth contactor (not shown), and a main printed circuit board ( 300, has a Bluetooth module 310.

Referring to FIG. 2, a Bluetooth antenna (not shown) is patterned on the sub-printed circuit board 100, and a Bluetooth antenna (not shown) is fed to the feeder 110, the ground 120, and the radiator ( 130).

1 and 2, the feeder 110 has one side connected to a feeding line 216 and the other side connected to a radiating unit 130, and the grounding unit 120 has one side of a ground line. 226 is connected to the other side and the radiation portion 130. The ground line 226 is connected to the ground of the main printed circuit board 300. In this case, it is preferable that the power supply unit 110, the grounding unit 120, and the radiation unit 130 are patterned to form an inverted F letter. In other words, the Bluetooth antenna (not shown) is preferably an inverted-F antenna.

2, the side of the mobile terminal according to the first embodiment is provided with a camera side button (not shown), the sub-printed circuit board 100 and the lower side of the camera side button (not shown) It is provided with a button signal unit 140 for transmitting a predetermined signal by the contact and is embedded in the side of the mobile terminal. The sub printed circuit board 100 is preferably a flexible printed circuit board.

Referring to FIG. 2, the non-conductive tape 150 is attached to the sub printed circuit board 100 except for the button signal unit 140, and the power supply unit 110, the ground unit 120, and the radiation unit 130 are attached to the sub-printed circuit board 100. ) Is preferably patterned on the non-conductive tape 150. This is to prevent signal interference due to the metallic circuit lines formed on the sub printed circuit board 100.

Referring to FIG. 3, the Bluetooth contactor (not shown) includes a contactor substrate 200, a feed auxiliary contact protrusion 210, and a ground contact contact 220.

Referring to FIG. 3, the contactor substrate 200 is formed of a non-conductor. A pair of feeder contact protrusions 210 and a ground contact protrusion 220 protrude and form the contactor substrate 200.

Referring to FIGS. 3 and 4, the pair of feeder contact protrusions 210 includes two protrusions 212 and 214, and the sub printed circuit board 100 is inserted between the two protrusions 212 and 214. In this case, the power supply unit 110 is configured to compress and fix the upper and lower surfaces of the patterned sub printed circuit board 100 by an elastic force. Accordingly, at least one of the two protrusions 212 and 214 is made of an elastic material capable of elastic deformation, and the gap t ₁ between the two protrusions 212 and 214 is a sub printed circuit before the elastic deformation is performed. It is formed to be narrower than the thickness of the substrate 100, and the gap between the two projections (212, 214) is wider than t ₁ by elastic deformation due to external force, so that the sub-printed circuit board (2) between the two projections (212, 214) The feeder contact projection 210 may contact and fix the feeder 110 by the elastic force that is restored by removing the external force after inserting 100).

3 and 4, the feeding line 216 has one side connected to the Bluetooth module 310 and the other side connected to the feeder 110, and the Bluetooth module 310 and the Bluetooth antenna It is preferable to connect the non-applied), but when the projection 212 of the pair of feed part contacting protrusions 210 is in contact with the feeder 110, the feeding line 216 is It may be to supply electricity to the feeder 110 by being connected to the projection (212).

Similarly, referring to FIGS. 3 and 4, the pair of ground contact protrusions 220 may include two protrusions 222 and 224, and the sub-printed circuit board 100 may pass between the two protrusions 222 and 224. When drawn, the grounding part 120 is configured to compress and fix the upper and lower surfaces of the patterned sub printed circuit board 100 by elastic force. Therefore, at least one of the two protrusions 222 and 224 is composed of an elastic material capable of elastic deformation, and the gap t ₂ between the two protrusions 222 and 224 before the elastic deformation is formed is a sub printed circuit. It is formed to be narrower than the thickness of the substrate 100, and the gap between the two projections (222, 224) wider than t ₂ by elastic deformation due to external force, so that the sub-printed circuit board (between the two projections (222, 224) The feeder contact projection 210 may contact and fix the feeder 110 by the elastic force that is restored by removing the external force after inserting 100).

Referring to FIG. 3, at least one of the pair of feeder contact protrusions 210 is an outer surface from the feeder pressing surface 212 -P and 214 -P, which is a surface for pressing the upper and lower surfaces of the sub-printed circuit board 100. By changing the cross-sectional area while going to the groove portion to be connected to the pair of feed section pressing surface (212-P, 214-P) to be formed. This is to make it easy to apply an external force to the pair of feeder contact projections 210 when the sub-printed circuit board 100 is introduced by forming a gap between the feeder pressing surfaces 212 -P and 214 -P. will be.

3, 5, 6, and 7, a groove portion formed in contact with a pair of feeder pressing surfaces 212 -P and 214 -P will be described.

1. A groove portion formed in contact with a pair of feeder pressing surfaces by varying the width in a direction parallel to the feeder pressing surfaces 212-P and 214-P.

(1) Referring to Fig. 3, the pair of feeder contact projections 210 are moved from the feeder pressurization surfaces 212-P and 214-P to the outer surface while feeding the feeder pressurization surfaces 212-P and 214-P. By gradually increasing the width in the direction parallel to), a groove portion connected to the feeder pressing surface can be formed.

및

인 사다리꼴의 육면체로서, 사다리꼴의 작은변을 마주보도록 형성됨으로써 한 쌍의 급전부압박면(212-P,214-P)에 연접하는 홈부는 "V"자형인 것일 수 있다.That is, the pair of feed portion contact projections 210 has a shape viewed from above, respectively

And

As a trapezoidal hexahedron, it is formed so as to face the small side of the trapezoid, the groove portion connected to the pair of feed part pressing surfaces (212-P, 214-P) may be "V" shaped.

(2) Referring to Fig. 5, the pair of feeder contact projections 210 are fed from the feeder pressing surfaces 212-P and 214-P to the outside of the feeder pressing surfaces 212-P and 214-. By discontinuously increasing the width in the direction parallel to P) to form a stepped jaw, a groove portion connected to the feeder pressing surface can be formed.

및

인 다면체로서, 한 쌍의 급전부압박면에 연접하는 홈부는 "U"자형인 것일 수 있다.That is, the pair of feed portion contact projections 210 has a shape viewed from above, respectively

And

As a polyhedron, the groove portion connected to the pair of feed part pressing surfaces may be "U" shaped.

2. A groove portion formed to be connected to the pair of feed part pressing surfaces by varying the height protruding from the contactor substrate 200.

6 and 7, the pair of feeder contact protrusions 210 are discontinuously increased in height from the feeder contact surface toward the outside while discontinuously increasing the height of the stepped jaw. By forming (212-1, 214-1), a groove portion connected to the pair of feed part pressing surfaces may be formed.

In this case, the staircases 212-1 and 214-1 may be formed at an arbitrary position between the outer surface of the feeder pressing surface of the pair of feeder contact projections 210.

(2) Although not shown in the drawing, the pair of feeder contact projections 210 are continuously fed to the outer surface from the feeder pressing face to increase the height protruding from the contact substrate 200, so that the pair of feeder A groove portion in contact with the pressing surface may be formed.

3. It is also possible to form a groove portion in contact with the pair of feeder pressing surfaces by varying the width in the direction parallel to the feeder pressing surface and the height projecting from the contact substrate 200.

Similarly, referring to FIG. 3, at least one of the pair of ground contacting protrusions 220 is outside from the ground contact pressing surfaces 222 -P and 224 -P, which are surfaces for pressing the upper and lower surfaces of the sub-printed circuit board 100. By varying the cross-sectional area while going to the surface, a groove portion connected to the pair of ground-pressure pressing surfaces 222-P and 224-P is formed. This is to make it easy to apply an external force to the pair of ground contact protrusions 220 when the sub printed circuit board 100 is introduced by forming a gap between the ground contact pressure surfaces 222 -P and 224 -P. will be.

The groove portion formed in contact with the pair of ground portion pressing surfaces 222 -P and 224 -P is the same as the groove portion formed in contact with the pair of feed portion pressing surfaces 212 -P and 214 -P. Omit.

In the above-described embodiment, the size of the contactor substrate 200 is larger than the size of the projection surface of the feeder contact protrusion 210 and the ground contact protrusion 220 as shown in FIGS. 3, 5, and 6. Although it may be, as shown in Figure 7, it may be formed to a small extent to include the projection surface of the feeder contact projection 210 and the ground contact projection 220.

In the above-described embodiment, the sub printed circuit board 100 is a camera side button (not shown) provided on the side of the mobile terminal. However, in another embodiment, the sub printed circuit board 100 is the upper and lower ends of the mobile terminal. It may be located on the back, or may be other buttons such as a volume side button.

In the above-described embodiment, the gap t ₁ is formed between the two protrusions 212 and 214 before the elastic deformation is performed. However, in another embodiment, the gap t ₁ may not be formed. That is, the feed part pressing surfaces may be in contact with each other.

In the above embodiment, at least one of the two projections (212, 214) is made of an elastic material capable of elastic deformation, in another embodiment two projections (212, 214) is a material that is not elastic deformation It may be made of. In this case, at least one of the two protrusions 212 and 214 is erected so as to adjust the gap between the feeder pressing surfaces 212 -P and 214-P by moving left and right on the contact substrate 200. It is possible to press and fix by applying an elastic force to the sub-printed circuit board 100 inserted between the feeder pressing surface (212-P, 214-P) by a spring or the like provided on the substrate 200. . On the other hand, in the case of another embodiment, unlike the above-described embodiment, it is also possible that the groove portion in contact with the feed portion pressing surface is not formed.

Since the modified embodiment of the ground contact protrusion 220 is the same as or similar to the feeder contact protrusion 210 described above, a description thereof will be omitted.

Hereinafter, the operation of the first embodiment described above will be described.

In the first embodiment according to the present invention, the combination of the Bluetooth connector (not shown) and the sub printed circuit board 100 will be described.

Referring to FIG. 3, at least one of the feeder contact protrusions 210 is an elastic material. Moreover, the groove part is provided with the external force in the vicinity connected to the feed part press surface 212-P and 214-P. Therefore, when an external force is applied to the groove portion, the protrusion of the elastic material of the protrusions 212 and 214 elastically deforms, thereby increasing the gap between the feeder pressing surfaces 212 -P and 214-P. Referring to FIG. 4, when the sub printed circuit board 100 is inserted and the external force is removed, the feeding part pressing surfaces 212 -P and 214-P compress the sub printed circuit board 100 by the elastic restoring force. The feeder contact protrusion 210 is in contact with the feeder 110 to easily fix the sub printed circuit board 100.

3 and 4, the ground contact protrusion 220 contacts the ground 120 and fixes the sub printed circuit board 100. The principle is the same as that of the feeder contact protrusion 210. .

In addition, as described in the modified embodiment, when the feeder contact protrusion 210 or the ground contact protrusion 220 is a plastic material in which elastic deformation is impossible, the feeder contact protrusion 210 or the ground contact protrusion 220 may be used. In each case, at least one of the projections is movable left and right, and when the external force is removed, the feeding part pressing surfaces 212-P and 214-P and the ground pressing pressing surfaces 222-P and 224-P are moved by elastic force such as springs. Since the pressing force can be applied therebetween, the sub printed circuit board 100 can be easily fixed by the same principle as described above.

On the other hand, Example 1 adheres the non-conductive tape 150 to the sub printed circuit board 100 and pattern the Bluetooth antenna thereon, thereby preventing signal interference by the metallic circuit printed on the sub printed circuit board 100. Can be reduced.

In addition, in Embodiment 1, since the Bluetooth antenna is patterned on the sub printed circuit board 100 instead of the main printed circuit board 300, the utilization space of the main printed circuit board 300 becomes wider, and thus the main printed circuit board 300 is used. It is possible to implement other functions of the terminal.

In addition, in the first embodiment, the Bluetooth antenna is patterned on the camera sub-printed circuit board instead of the volume sub-printed circuit board, thereby reducing the spatial constraints on the patterning of the Bluetooth antenna. In other words, the number of buttons on the side of the volume is made up of two buttons, whereas the number of buttons on the side of the camera can be configured to one button.

In addition, the present invention can reduce the signal interference with the main antenna by mounting the Bluetooth antenna on the side of the terminal far from the main antenna located at the top of the terminal.

Example 2

The second embodiment will be described with reference to the first embodiment. 8 is a perspective view of a Bluetooth connector according to Embodiment 2, and FIG. 9 is a plan view of a sub-printed circuit board according to Embodiment 2. FIG.

Referring to FIG. 1, the second embodiment, like the first embodiment, has a sub-printed circuit board 100, a feeding line 216, a ground line 226, a Bluetooth contactor (not shown), and a main body. The printed circuit board 300 and the Bluetooth module 310 is provided.

Referring to FIG. 8, a Bluetooth antenna (not shown) is patterned on the sub printed circuit board 100, and the Bluetooth antenna (not shown) includes a feeder 110 and a radiator 130. It is composed. Unlike Embodiment 1, Embodiment 2 does not include the ground unit 120.

1 and 8, the feeder 110 has one side connected to a feeding line 216 and the other side connected to the radiator 130. Since the second embodiment does not have the ground part 120, unlike the first embodiment, the second embodiment also does not have the ground line 226 connected to the ground part 120. At this time, the power supply part 110 and the radiator part 130 are inverse L. It is preferably patterned to form a ruler. In other words, the Bluetooth antenna (not shown) is preferably an inverted L-type antenna.

1 and 9, the Bluetooth contactor (not shown) includes a contactor substrate 200 and a feeder contact protrusion 210. Unlike Embodiment 1, the second embodiment does not include the ground contact protrusion 220.

Other descriptions related to the sub-printed circuit board 100, the contactor board 200, the feeder contact protrusion 210, and the feeding line 216 are the same as those of the first embodiment, and thus will be omitted.

The mobile terminal according to the present invention has a structure that can easily connect the Bluetooth connector and the sub-printed circuit board 100 by using the elastic force can increase the mass productivity of the assembly, there is an advantage that can reduce the defects during assembly. .

In addition, the present invention has the advantage that it is possible to reduce the signal interference by the metallic circuit printed on the sub-printed circuit board because the non-conductive tape is adhered to the sub-printed circuit board and the Bluetooth antenna is patterned thereon.

In addition, the present invention has a merit that the utilization space of the main printed circuit board is widened since the Bluetooth antenna is patterned on the sub printed circuit board instead of the printed circuit board, and thus, other functions of the terminal can be implemented on the main printed circuit board.

In addition, the present invention has an advantage that the Bluetooth antenna can be patterned on the camera sub-printed circuit board instead of the volume sub-printed circuit board, thereby receiving less space constraints in patterning the Bluetooth antenna.

In addition, the present invention has an advantage that the signal interference with the main antenna is less because the Bluetooth antenna is mounted on the side of the terminal far from the main antenna located at the top of the terminal.

Claims (14)

Bluetooth module provided on the main printed circuit board, A Bluetooth antenna having a feeding part and a radiating part patterned on a sub printed circuit board, And a pair of feeder contact protrusions formed on the contactor substrate so as to press the upper and lower surfaces of the sub-printed circuit board in which the feeder is patterned when the sub-printed circuit board is inserted by the elastic force. Bluetooth contactor, Mobile terminal having a Bluetooth antenna, characterized in that it comprises a feeding line (feeding line) for electrically connecting the Bluetooth module and the Bluetooth antenna. The method of claim 1, At least one of the pair of feed contacting projections is formed by a groove portion connected to the pair of pressing surfaces by changing the cross-sectional area from the feed pressing portion pressing the upper and lower surfaces of the sub printed circuit board to the outside. Mobile terminal having a Bluetooth antenna characterized in that. The method of claim 2, At least one of the pair of feeder contact projections is connected to the pair of feeder pressing surfaces by varying a width in a direction parallel to the feeder pressing surface while going from the feeder pressing surface to the outer surface. Mobile terminal having a Bluetooth antenna, characterized in that the addition is formed. The method of claim 3, The pair of feeder contact protrusions may have a shape viewed from above, respectively.

And

A mobile terminal having a Bluetooth antenna, characterized in that a trapezoidal hexahedron having a groove portion connected to the pair of feeder pressing surfaces by being formed to face a small side of the trapezoid. The method of claim 3, The pair of feeder contact protrusions may have a shape viewed from above, respectively.

And

A polyhedron, wherein the groove portion connected to the pair of feed part pressing surfaces is "U" shaped, the mobile terminal having a Bluetooth antenna. The method of claim 2, At least one of the pair of feeder contact projections is formed by a groove portion connected to the pair of feeder pressing surfaces by varying the height protruding from the contact substrate while going from the feeder pressing surface to the outer surface. Mobile terminal having a Bluetooth antenna characterized in that. The method according to any one of claims 1 to 6, The side surface of the mobile terminal is provided with a side button for the camera, The sub printed circuit board is a flexible printed circuit board for a camera embedded in a side of the terminal, and has a Bluetooth signal unit for transmitting a predetermined signal by contact with a lower end of the side button for the camera. Mobile terminal. The method of claim 7, wherein In the sub-printed circuit board, a non-conductive tape is attached to a portion except for the button signal portion. The feeder and the radiation unit is a mobile terminal having a Bluetooth antenna, characterized in that patterned on the non-conductive tape. The method of claim 8, The Bluetooth antenna is a mobile terminal having a Bluetooth antenna, characterized in that the inverted L-type antenna. The method of claim 1, The sub printed circuit board is further patterned with a ground portion, The contact substrate is further provided with a pair of ground contact protrusions for pressing the upper and lower surfaces of the patterned sub-circuit board with elastic force when the sub-circuit board is retracted. Mobile terminal having a Bluetooth antenna, characterized in that the ground line is connected to the ground. The method of claim 10, At least one of the pair of feeder contact projections is provided with a groove portion connected to the pair of pressing surfaces by changing the cross-sectional area from the feeder pressing surface for pressing the upper and lower surfaces of the sub printed circuit board to the outside. At least one of the pair of ground contacting protrusions is formed with a groove portion connected to the pair of ground pressing surfaces by changing a cross-sectional area from the ground pressing surface to the outer surface of the sub printed circuit board. Mobile terminal having a Bluetooth antenna, characterized in that. The method according to claim 10 or 11, wherein The side surface of the mobile terminal is provided with a side button for the camera, The sub printed circuit board is a flexible printed circuit board for cameras inserted into a side of the terminal, and has a Bluetooth signal unit for transmitting a predetermined signal by contact with a lower end of the side button for the camera. Having a mobile terminal. The method of claim 12, In the sub-printed circuit board, a non-conductive tape is attached to a portion except for the button signal portion. And the feeding part, the radiating part, and the grounding part are patterned on the non-conductive tape. The method of claim 13, The Bluetooth antenna is a mobile terminal having a Bluetooth antenna, characterized in that the inverted-F antenna.

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