KR20140100384A

KR20140100384A - Case and electronic apparatus

Info

Publication number: KR20140100384A
Application number: KR1020130062156A
Authority: KR
Inventors: 김태영; 양치환; 이인영; 최상훈
Original assignee: 삼성전자주식회사
Priority date: 2013-02-04
Filing date: 2013-05-30
Publication date: 2014-08-14

Abstract

An electronic apparatus is disclosed. The apparatus comprises a metal case having an antenna pattern and a circuit substrate for a signal processing in the antenna pattern, wherein the antenna pattern is arranged in a region where both sides of the case meets each other and is a slit antenna including a slit in which one side thereof is connected to the open area of the case.

Description

[0001] CASE AND ELECTRONIC APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case and an electronic apparatus, and more particularly, to a case and an electronic apparatus that can use a metal case of an electronic apparatus as an antenna.

Recently, with the development of technology, the functions of electronic devices have become complicated and are being advanced in specifications. As the functions of the electronic device are complicated and advanced in this way, the number of parts and antennas to be mounted has increased.

However, in recent years, slimmer and smaller size are also required to increase the portability of electronic devices, and a method of installing the increased number of antennas in a narrow space has been required.

In recent years, metal cases are often used in electronic devices to enhance design and durability. Metal cases have a bad influence on antenna radiation.

In this respect, in recent years, a part of the metal case is removed and the antenna is installed in the area where the metal case is removed. However, when the electronic device is implemented in such a manner, Was requested.

An object of the present invention is to provide a case and an electronic device that can use the metal case of the electronic device as an antenna.

According to an aspect of the present invention, there is provided an electronic device including a metal case having an antenna pattern, and a circuit board for signal processing in the antenna pattern, And a slit antenna disposed at an area where two sides of the case meet and having slits connected to one side of the open area of the case.

In this case, the slit antenna can resonate in the 2 GHz band.

Meanwhile, the slit antenna may be an L-shaped slit antenna.

The antenna pattern may be formed in a region where two sides of the case meet, a groove region cut at one side to be connected to an open region of the case, a first case region at an inner side of the groove region, And an outer second case area.

In this case, the groove region may have a width of 1 mm or more.

Meanwhile, the width between the groove region and the open region of the case may be 2 mm or more.

On the other hand, the groove region may be bent at least once.

In this case, the groove region may include a first groove region that is disposed in a direction perpendicular to the open region of the case and cut to connect one side to the open region of the case, and a second groove region that is perpendicular to the first groove region And a second groove region cut at one side to be connected to the first groove region.

In this case, the second groove region may have a meander shape.

Meanwhile, the length of the second groove region may be 1/4 times the wavelength length of the first band.

The electronic device may further include a connection portion for contacting the antenna pattern and connecting the antenna pattern to the circuit board.

In this case, the connection portion may be disposed at a lower end of a region where the first case region and the second case region meet.

The connecting portion may include a feeding portion contacting the first case region and feeding the antenna pattern, a first grounding portion contacting the second case region, a second grounding portion contacting the first feeding portion, 1 terminal, and a second terminal for connecting the first ground and the ground of the circuit board.

In this case, the connection portion may further include a matching portion disposed between the feeding portion and the first terminal, and matching the impedance of the antenna pattern.

In this case, the matching section can match the impedances using one of an L-type matching circuit, a? -Type matching circuit, and a T-type matching circuit.

The connection unit may further include an antenna pattern unit resonating in the second band.

On the other hand, the electronic device may further include a protection portion that fills the groove region with an insulating material.

Meanwhile, the electronic device may further include a protection portion that fills an upper portion of the antenna pattern with an insulating material.

On the other hand, the case may have a plurality of antenna patterns.

The antenna pattern may be a slit antenna resonating in the first and second bands.

In this case, the first band may be a 2 GHz band, and the second band may be a 5 GHz band.

The antenna pattern may include a third groove region formed in a region where two sides of the case meet and having one side connected to an open region of the case, a third groove region disposed inside the third groove region, A third case region between the inside of the third groove region and the outside of the fourth groove region, a fourth case region between the inside of the third groove region and the outside of the fourth groove region, A case region, and a fifth case region outside the third groove region.

On the other hand, the case may be a case for protecting the display device.

In this case, the antenna pattern may be disposed in at least one of the two edge regions of the lower end of the display apparatus.

Meanwhile, in the metal case surrounding the electronic device according to the present embodiment, the antenna pattern serving as the slit antenna is formed in the region where the two sides of the case meet.

1 is a block diagram showing the configuration of an electronic device according to an embodiment of the present invention;
FIG. 2 illustrates a case according to an embodiment of the present invention. FIG.
3 is a view showing an example of the antenna pattern according to the first embodiment,
4 is a view showing an embodiment of an antenna pattern according to the first embodiment,
5 is a view showing a protection unit according to the first embodiment,
6 is a view showing a protection unit according to a second embodiment,
7 is a view showing a case where the antenna pattern is disposed at the center of the side surface and a radiation pattern thereof,
8 is a view showing a radiation pattern of the antenna pattern according to the first embodiment,
9 is a view showing an example of an antenna pattern according to the second embodiment,
10 is a view showing an embodiment of an antenna pattern according to the second embodiment,
11 is a view showing a radiation pattern of the antenna pattern according to the second embodiment,
12 is a view showing an embodiment of an antenna pattern according to the third embodiment,
13 is a view showing an example of the antenna pattern according to the fourth embodiment,
FIG. 14 is a view showing bandwidth characteristics of the antenna pattern according to the fourth embodiment, and FIG.
15 is a view showing a radiation pattern of the antenna pattern according to the fourth embodiment,
16 is a view showing an example of the antenna pattern according to the fifth embodiment,
17 is a view showing a configuration of a connection portion according to the first embodiment,
18 is a view showing an embodiment of a connecting part according to the first embodiment,
19 is a view showing a configuration of a connection portion according to the second embodiment,
20 is a view showing an embodiment of a connecting part according to the second embodiment,
21 is a view showing a configuration of a connection portion according to the third embodiment,
22 is a view showing a configuration of a connection portion according to a fourth embodiment,
23 is a view showing a configuration of a connection portion according to the fifth embodiment, and FIG.
24 is a view showing a configuration of a connection portion according to the sixth embodiment.

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

1 is a block diagram showing a configuration of an electronic device according to an embodiment of the present invention.

1, an electronic device 100 according to an exemplary embodiment of the present invention includes a communication interface unit 110, a user interface unit 120, a storage unit 130, a controller 140, and an antenna 200 . Here, the electronic device 100 is a device capable of performing communication with an external device using an antenna such as a PC, a notebook, a tablet, a PMP, or a smartphone.

The communication interface unit 110 is formed to connect the electronic device 100 to an external device (not shown), and is connected to an external device via a local area network (LAN) and an Internet network, (For example, wireless communication such as GSM, UMTS, LTE, WiBRO, WiFi, Bluetooth, etc.) using the wireless communication device 200. In addition, the communication interface unit 110 may be connected to an external device and an Internet network using a plurality of wireless communication methods using the antenna 200.

The communication interface unit 110 includes a circuit board electrically connected to the antenna 200. Here, the circuit board is electrically connected to the antenna pattern or feeding part of the antenna 200, and supplies electromagnetic energy to the antenna 200.

The antenna 200 emits radio waves using the electromagnetic energy provided on the circuit board. In the antenna 200 according to the present embodiment, the metal case is processed to have an antenna pattern and used as an antenna. The specific shape of the antenna pattern and the position of the antenna pattern will be described later with reference to FIG. 2 to FIG.

The user interface unit 120 includes a plurality of function keys that a user can set or select various functions supported by the electronic device 100 and can display various types of information provided by the electronic device 100. [ The user interface unit 120 may be realized by a device such as a touch screen, in which an input and an output are realized at the same time, or may be implemented by a combination of a mouse and a monitor.

The storage unit 130 stores a program for driving the electronic device 100. Specifically, the storage unit 130 may store a program, which is a set of various commands required when the electronic device 100 is driven. Here, the program includes an MBR (Master Boot Record) (or GPT) and an operating system.

The storage unit 130 may be a storage medium such as a flash memory, a hard disk (HDD), an SDD, etc. and an external storage medium (e.g., a removable disk including a USB memory, a host) A connected storage medium, a Web server via a network, or the like.

The control unit 140 performs control for each configuration in the electronic device 100. [ Specifically, the control unit 140 can determine the operation mode of the electronic device 100 by determining the presence or absence of the user's operation, the elapsed operation time of the user, and the like.

The control unit 140 may control each configuration in the electronic device 100 to have an operation state corresponding to the determined operation mode. Specifically, the electronic device 100 has a normal mode, a plurality of power saving modes, and an off mode. Here, the normal mode is an operation mode in which power is supplied to each configuration in the electronic device 100 to advance the process requested by the user, and the power saving mode is a power supply And the off mode is a state in which the electronic device 100 is not operating. For example, the control unit 140 may cut off power supplied to the antenna 200 in the power saving mode.

When the booting command is input, the control unit 140 may perform booting using the operating system stored in the storage unit 130. The control unit 140 may perform a function corresponding to the user command input through the user interface unit 120 after booting.

As described above, the electronic device 100 according to this embodiment can perform communication with an external device using an antenna to be described later, so that it is possible not only to reduce the size of the electronic device 100, but also to perform efficient communication .

2 is a view illustrating a case according to an embodiment of the present invention.

Referring to FIG. 2, the cases 201 and 202 enclose the electronic device and are made of a metal material.

The case 201, 202 is formed with an antenna pattern 210 functioning as a slit antenna in a region where two sides of the case meet. Specifically, the antenna pattern 210 may be located in a region where two sides (specifically, the left side, the right side, the upper side, and the lower side) of the case of the metal material meet. Here, the side face means a face perpendicular to the widest face (specifically, the back face plate) of the case.

For example, when the electronic device 100 is a notebook, as shown in FIG. 2, the electronic device 100 includes a first case 201 for protecting the display device and a second case (not shown) for protecting the input device 202).

In this case, the antenna pattern 210 may be formed in the regions 210-1, 210-2, 210-3, and 210-4 where the two sides of the first case 201 meet, 210-5, 210-6, 210-7, and 210-8 where the two side faces of the pixel electrode 210-2 are in contact with each other. In implementation, the antenna pattern 210 may be formed in one of the eight positions described above, or may be formed in a plurality of the above eight positions.

On the other hand, when the antenna pattern 210 is positioned in the lower end regions 210-3 and 210-4 of the first case 201, the probability that the user touches the antenna pattern is lower, And connection with the circuit board disposed in the second case 202 is easier. However, if the clearance between the LCD panel and the first case 201 is not sufficient, it may not be disposed in the lower end regions 210-3 and 210-4 of the first case 201. [ More specifically, when the antenna pattern is to be connected to the circuit board through the connection portion, there is no space for the connection portion between the LCD panel and the case.

In this case, the antenna pattern may be formed in the upper regions 210-1 and 210-2 of the first case 201 having a clearance between the LCD panel and the case by the webcam, or the antenna pattern may be formed in the lower region 210 of the first case 201 -3, and 210-4, and the antenna pattern and the circuit board may be connected to each other by performing a plating process on a part of the antenna pattern, and by using a soldering process without using a connection part.

On the other hand, when antenna patterns are formed in a plurality of regions, the resonance bands of the antenna patterns may be the same (i.e., used as a MIMO antenna), or may be implemented differently. The specific shape of the antenna pattern 210 will be described later with reference to FIGS. 3 and 4. FIG.

As described above, the electronic device 100 according to the present embodiment forms the antenna pattern in the case, and the size of the electronic device 100 can be reduced. In addition, since the antenna pattern is disposed in the side area of the case which is invisible during use of the electronic device 100, design damage due to the arrangement of the antenna pattern can be minimized.

Furthermore, since the antenna pattern is disposed in the region where the two sides of the case meet (i.e., the edge region), an efficient radiation pattern is obtained. Such an effect will be described later with reference to FIGS. 7 and 8. FIG. Further, since the antenna pattern is implemented by a slit antenna, the antenna can be realized in a smaller form.

2 shows only the case where the electronic device 100 is a notebook computer. However, in the case where the electronic device 100 is a tablet or a smartphone having only one case, It can be formed in four regions where two sides meet.

Also, in the case where the electronic device 100 is a notebook computer, the antenna pattern 210 may be formed in four regions where two sides of the upper case meet, when only the upper case is realized with metal.

2, the first case 201 is shown wrapping around the rear surface, the left / right side, the upper / lower side, and a part of the front surface (or the bezel) of the LCD. However, Some areas may also be implemented in a non-wrapping form, i.e. wrapping only the back, left / right and top / bottom sides of the LCD.

3 is a view showing an example of the antenna pattern according to the first embodiment. More specifically, FIG. 3A is a view showing the shape of the antenna pattern at the upper portion, and FIG. 3B is a view showing the shape of the antenna pattern seen from the inside of the case. And FIG. 4 is a view showing an embodiment of an antenna pattern according to the first embodiment.

Referring to FIGS. 3 and 4, the antenna 200 includes an antenna pattern 210 and a connection portion 220.

The antenna pattern 210 is an L-shaped slit antenna resonating in the first band. Here, the first band is 2 GHz, but it is not limited thereto. Here, the slit antenna is an antenna in which a slit whose one side is opened is disposed on the plane surface of the antenna, and the radiation pattern of the antenna is caused by the distribution of the magnetic flux. Although an L-shaped slit antenna is used as the antenna pattern 210 in this embodiment, a slit antenna having a shape other than an L-shaped shape can be used in the implementation.

Specifically, the antenna pattern 210 includes a groove region 212, a first case region 211, and a second case region 213.

The groove region 212 is a cut-away region of the case, and is disposed in a region where two sides of the case meet (i.e., an edge region of the case). It is preferable that such a groove has a width of 1 mm or more.

Such a groove region 212 may be formed by being bent at least once as shown in FIG. 3 and FIG. Specifically, the groove region 212 may include a first groove region 212-1 and a second groove region 212-2.

The first groove region 212-1 is an area cut in a direction perpendicular to the open region of the case so that one side is connected to the open region of the case. The width of the first groove region 212-1 is preferably 1 mm or more, and the length of the first groove region 212-1 is preferably 2 mm or more. Meanwhile, at the time of implementation, the resonance band of the antenna pattern 210 can be tuned by adjusting the width or length of the first groove region 212-1. Specifically, the width of the first case region 211 is determined by the length of the first groove region 212-1, and the width of the first case region 211 affects the resonance bandwidth.

The above-mentioned open area means the area opposed to the widest surface (specifically, the top surface) of the case (or the area where the LCD is disposed, the area where the user is located) as the bottom part shown in Fig. 3 .

The second groove region 212-2 is an area cut perpendicularly to the first groove region 212-1 and connected to one side of the first groove region 212-1. The width of the second groove region 212-1 is preferably 1 mm or more, and the length of the second groove region 212-2 may be 1/4 of the wavelength length of the first band. That is, in the implementation, the length of the second groove region 212-2 can be designed to correspond to the required resonance band of the antenna pattern.

The second groove region 212-2 may be a linear shape as shown in FIG. 3 and may be a meander shape as shown in FIG. In the above description, the second groove region 212-2 is arranged in a direction perpendicular to the first groove region 212-1. However, in the implementation, the second groove region 212-2 and the second groove region 212-2 212-1 may be arranged at angles other than 90 degrees.

The first case area 211 is an inner case area of the groove area, and receives power from the circuit board. It is preferable that the first case region 211 has a width of 2 mm or more.

The second case region 213 is an outer case region of the groove region and is electrically connected to the ground terminal.

The connection part 220 is in contact with the antenna pattern 210 in a contact manner, and electrically connects the antenna pattern 210 and the circuit board. The specific configuration and operation of the connection unit 220 will be described later with reference to FIG. 17 to FIG. Although the antenna pattern 210 is connected to the circuit board by using the connection part 220 in the present embodiment, the antenna pattern 210 may be formed by plating (gold plating or silver plating ) And soldering to the plated region to electrically connect the antenna pattern 210 to the circuit board without using the connecting portion 220. [

3, the area where the two side surfaces meet is flat, but the area where the two sides meet as shown in FIG. 4 may be curved. 3 and 4, each of the two side surfaces is shown as being flat in the up-and-down direction. However, the two side surfaces may have the up-and-down bending.

FIG. 5 is a view showing a protection unit according to the first embodiment, and FIG. 6 is a view showing a protection unit according to the second embodiment.

4, the inner region of the groove region (i.e., the first case region) may be deformed by an impact in that the antenna pattern according to the present embodiment is formed by cutting the case.

Therefore, in order to prevent the antenna pattern from being deformed by such an impact or the like, the electronic device 100 according to the present embodiment further includes a protection unit 230 that fills the cut groove with an insulating material as shown in FIG. 5 Alternatively, as shown in FIG. 6, a protective portion 230 'for covering an upper portion of the antenna pattern with an insulating material may be further included.

Hereinafter, with reference to Figs. 7 and 8, the reason why the antenna pattern according to the present embodiment is formed in the region where the two sides of the case meet is formed as a slit antenna (L-shaped slit antenna).

FIG. 7A shows a case where the slot antenna is disposed at the center of the side of the case, FIG. 7B shows the radiation pattern of FIG. 7A, and FIG. Fig.

Referring to FIG. 7A, the antenna pattern is a slot antenna pattern having grooves of a predetermined length on one side of the case. As shown in FIG. 7B, it can be confirmed that the left / right spinning of the slot antenna is suppressed.

Referring to FIG. 7C, when the position of the slot antenna is moved to the edge region, it is confirmed that the suppression of the left / right radiation is somewhat improved. However, it can be confirmed that the left and right spinning is still suppressed.

However, referring to FIG. 8, it can be seen that the L-shaped slit antenna formed in the region where the two sides of the case meet according to the present embodiment is radiated in all directions, thereby improving the directional problem.

In the above description, one antenna pattern operates in one band, but an antenna pattern operating in a plurality of bands may be implemented at the time of implementation. Such an example will be described with reference to Figs. 9 to 16. Fig.

FIG. 9 is a view showing an example of the antenna pattern according to the second embodiment, and FIG. 10 is a view showing an embodiment of the antenna pattern according to the second embodiment.

9 and 10, the antenna pattern 210 'according to the second embodiment is an L-shaped slit antenna resonating in the first band and the second band. Where the first band is 2 GHz and the second band is 5 GHz, but is not limited thereto.

Specifically, the antenna pattern 210 'according to the second embodiment includes the third groove region 217, the fourth groove region 215, the third case region 216, the fourth case region 214, And may include a case area 218.

The third groove region 217 is formed in a region where two sides of the case meet, and is a region where one side is cut to be connected to the open region of the case. The third groove region 217 is bent at least once as shown in FIG. 9, and the width of the third groove region 217 is preferably at least 1 mm. The function and configuration of the third groove region 217 are the same as those of the groove region 212 of FIG. 3, and a detailed description thereof will be omitted.

The fourth groove region 215 is disposed inside the third groove region 217 and is a region where one side is cut to be connected to the open region of the case. The fourth groove region 215 is bent at least once as shown in FIG. 9, and the width of the fourth groove region 215 is preferably 1 mm or more. The function and configuration of the fourth groove region 215 are the same as those of the groove region 212 of FIG. 3, and a detailed description thereof will be omitted.

The third case region 216 is a case region between the inside of the third groove region 217 and the outside of the fourth groove region 215 and receives a first feeding from the circuit board. The width of the third case region 216 is preferably 2 mm or more.

The fourth case region 214 is a case region inside the fourth groove region 215 and receives a second feeding from the circuit substrate. The width of the fourth case region 214 is preferably 2 mm or more.

The fifth case region 218 is an outer case region of the third groove region 217 and is electrically connected to the ground terminal.

11 is a view showing a radiation pattern of the antenna pattern 210 'according to the second embodiment. Specifically, FIG. 11A shows a radiation pattern in the 2 GHz band, and FIG. 11B shows a radiation pattern in the 5 GHz band.

Referring to FIG. 11, it can be seen that the antenna pattern 210 'according to the second embodiment has omnidirectional antenna characteristics in all directions in both the 2 GHz band and the 5 GHz band.

12 is a view showing an embodiment of an antenna pattern according to the third embodiment.

12, the antenna pattern 210 "'according to the third embodiment includes a groove region 212, a first case region 211, a second case region 213, and an extension 219 The first case region 211 and the second case region 213 have the same function and operation as those of the antenna pattern 210 according to the first embodiment.

The extension 219 is a metal strip resonating in the second band. Specifically, the extension 219 may be formed in the process of forming the groove region 212 of the antenna pattern 210. Specifically, it is possible to bend the groove 212 of the antenna pattern 210 in the direction of the body of the electronic device 100 without cutting one end in the process of cutting. The total length of the metal strip of the extension 219 is preferably 1/4 times the wavelength length of the second band.

Although the expansion portion 219 is formed by using the cut region of the groove region 212 in the above description, the metal case may be pressed to separate the upper and the side portions, and the expansion portion 219 may be formed The extension portion 219 may be realized by cutting the remaining portion except the region to be formed to fit the lateral thickness of the case.

13 is a view showing an example of the antenna pattern according to the fourth embodiment.

Referring to Fig. 13, the antenna pattern 210 "'according to the fourth embodiment is the same as the antenna pattern according to the first embodiment except that the length of the groove region 212 and the length of the first case region 211 .

Specifically, the lateral length (specifically, the length of the second groove region 212-2) of the groove region 212 is about 81.5 mm, which is long and different from that of the first embodiment. 14, the antenna pattern 210 "" in accordance with the fourth embodiment has bandwidths of 800 MHz, 2.4 GHz band, 4.2 GHz band, and 5-6 GHz band, There are characteristics. Therefore, the present invention can be applied to a multi-band antenna using this point.

FIG. 14 is a view showing a bandwidth characteristic of the antenna pattern according to the fourth embodiment, and FIG. 15 is a diagram showing a radiation pattern of the antenna pattern according to the fourth embodiment.

Referring to FIGS. 14 and 15, it can be seen that a multi-band antenna can be realized by implementing a long length of the first case region 211. [ Also, it can be confirmed that the implemented antenna has omnidirectional antenna characteristics in all directions.

16 is a view showing an example of the antenna pattern according to the fifth embodiment.

16, the antenna pattern 210 "'according to the fifth embodiment has the same structure as that of the antenna pattern according to the first embodiment, except that the difference in the shape of the second groove region 212-2 .

Specifically, the second groove region 212-2 has a meander shape. As described above, since the shape of the second groove region 212-2 has a meander shape, tuning for the second band and the third band can be performed unlike the fourth embodiment.

Hereinafter, the connection unit 220 that feeds the antenna pattern implemented in the above-described manner will be described. Specifically, soldering can not be performed directly on metal elements such as aluminum, duralumin, and the like. Therefore, a plating process (silver plating or gold plating) is performed on a part of the surface of the metal element to perform soldering, . Hereinafter, referring to Figs. 17 to 24, a connection unit of the contact type feeding structure will be described.

FIG. 17 is a view showing a configuration of a connection part according to the first embodiment, and FIG. 18 is a view showing an implementation example of a connection part according to the first embodiment.

17 and 18, the connection portion 220 is connected to the antenna pattern, and is disposed at the lower end of the region where the first case region 211 and the second case 213 region meet. The connection unit 220 includes a power feed unit 223, a first ground unit 221, and a first terminal 224. And a second terminal 222.

The feeding part 223 contacts the first case area 211 in a contact manner, and feeds the antenna pattern. Specifically, the feeding part 223 is located at the lower end of the first case area, and performs power feeding to the first case area. The tuning for the resonance frequency can be performed by adjusting the feeding position with respect to the first case region of the feeding part 223 at the time of implementation. Concretely, the first case area 211 is disposed close to the area where the first case area 211 and the second case 213 area meet, or is disposed at a position distant from the first case area 211, Can be performed.

The first grounding portion 221 contacts the second case region in a contact manner. Specifically, the first grounding portion 221 is located at the lower end of the second case region, and the second case region is grounded.

The first terminal 224 electrically connects the feeding part 223 and the circuit board. Specifically, the first terminal 224 includes an area where the cable can be soldered, is connected to the circuit board through the soldered cable, and can be connected to the feed part 223 in a pattern.

The second terminal 222 connects the first ground 221 to the second ground of the system of the electronic device 100. Specifically, the second terminal 224 is connected to the second grounding portion of the electronic device 100 through a cable, and may be connected to the first grounding portion 221 in a pattern. On the other hand, when the case in which the first antenna is formed is a case for protecting the display device, the second terminal 224 can be connected to the ground terminal of the display device.

FIG. 19 is a view showing a configuration of a connection portion according to a second embodiment, and FIG. 20 is a view showing an embodiment of a connection portion according to the second embodiment.

The connection part 220 'according to the second embodiment is not different from the connection part 220 according to the first embodiment except that the first terminal 224 is implemented as a cable connector, and the power feeding part 223, The description of the first ground part 221 and the second terminal 222 is omitted.

The first terminal 224 'electrically connects the feeding part 223 and the circuit board. Specifically, the first terminal 224 'has a cable connector to be connected to the cable, and is connected to the circuit board through a cable attached to the cable connector and the cable connector, and may be connected to the feeder 223 in a pattern .

Although the connecting portions 220 and 220 'have been described as having only one feeding portion in the above description, in the case of using the antenna pattern according to the second embodiment, the connecting portion 220 includes a plurality of feeding portions, And a plurality of first terminals for connecting each of the first and second circuit boards to the circuit board.

In the above description, the connection portions 220 and 220 'only function to connect the antenna pattern and the circuit board. However, the connection portion may further include additional functions. Such an example will be described below with reference to FIGS. 21 to 24. FIG.

FIG. 21 is a view showing a configuration of a connection portion according to the third embodiment. Specifically, the connection portion 220 "'according to the third embodiment adds a function of performing impedance matching to the connection portion 220 according to the first embodiment.

21, the connecting portion 220 '' includes a feeding portion 223, a first ground portion 221, a first terminal 224, a second terminal 222, and a matching portion 225. The functions of the feeding part 223, the first grounding part 221, the first terminal 224 and the second terminal 222 are the same as those of the configuration of Fig. 17, and a description thereof will be omitted.

The matching portion 225 is disposed on the feeding portion 223 and the first terminal 224 to match the impedance of the antenna pattern. Such a matching portion 225 may include an L-type matching circuit as shown in FIG. 21A, a? -Type matching circuit as shown in FIG. 21B, and a T-type matching circuit as shown in FIG. 21C. The structures and functions of the L-type matching circuit, the? -Type matching circuit, and the T-type matching circuit are well known, and a description thereof will be omitted.

22 is a view showing a configuration of a connection portion according to the fourth embodiment. Specifically, the connecting portion 220 "" according to the fourth embodiment adds a function of performing impedance matching to the connecting portion 220 'according to the second embodiment.

Referring to Fig. 22, the connecting portion 220 "'includes a feeding portion 223, a first ground portion 221, and a first terminal 224'. A second terminal 222, and a matching portion 225. Functions of the feeding part 223, the first ground part 221, the first terminal 224 'and the second terminal 222 are the same as those of the configuration of FIG. 19, and a description thereof will be omitted.

The matching portion 225 is disposed on the feeding portion 223 and the first terminal 224 ', and matches the impedance of the antenna pattern. Such a matching section 225 may include an L-type matching circuit as shown in FIG. 22A, a? -Type matching circuit as shown in FIG. 22B, and a T-type matching circuit as shown in FIG. 22C. The structures and functions of the L-type matching circuit, the? -Type matching circuit, and the T-type matching circuit are well known, and a description thereof will be omitted.

23 is a view showing a configuration of a connection portion according to the fifth embodiment. Specifically, the connecting portion 220 "" according to the fifth embodiment is formed by adding an additional antenna pattern resonating in a band different from the antenna pattern to the connecting portions 220 and 220 'according to the first and second embodiments will be.

Referring to Fig. 23, the connection portion 220 "'includes a feeding portion 223, a first ground portion 221, and first terminals 224 and 224'. A second terminal 222, a matching portion 225, and an antenna pattern portion 226. Functions of the feeding part 223, the first ground part 221, the first terminals 224 and 224 'and the second terminal 222 are the same as those of the configuration shown in FIG. 17 or 19, and a description thereof will be omitted.

The antenna pattern portion 226 is an antenna pattern resonating in the second band. Specifically, the antenna pattern portion 226 may be formed of a metal strip pattern. At this time, the length of the metal strip pattern of the antenna pattern portion 226 may be 1/4 times the wavelength length of the second band.

24 is a view showing a configuration of a connection portion according to the sixth embodiment. Specifically, the connection portion 220 "" according to the fourth embodiment has a function of performing impedance matching on the connection portions 220 and 220 'according to the first and second embodiments, And an additional antenna pattern is added.

24, the connection part 220 "" includes a feeding part 223, a first ground part 221, first terminals 224, 224 ', a second terminal 222, an antenna pattern part 226 The functions of the feeding part 223, the first grounding part 221, the first terminals 224 and 224 'and the second terminal 222 are the same as those of the configuration of FIG. 17 or 19, The description is omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

100: electronic device 110: communication interface unit
120: user interface unit 130: storage unit
140: control unit 200: antenna
210: antenna pattern

Claims

In an electronic device,
A metal case having an antenna pattern; And
And a circuit board for signal processing in the antenna pattern,
The antenna pattern includes:
And a slit antenna which is disposed in a region where two sides of the case meet and has a slit whose one side is connected to an open region of the case.

The method according to claim 1,
Wherein the slit antenna resonates in the 2 GHz band.

The method according to claim 1,
Wherein the slit antenna is an L-shaped slit antenna.

The method according to claim 1,
The antenna pattern includes:
A groove region formed in a region where two sides of the case meet and cut so that one side is connected to an open region of the case;
A first case region inside the groove region; And
And a second case region outside the groove region.

5. The method of claim 4,
And the groove region has a width of 1 mm or more.

5. The method of claim 4,
And the width between the groove region and the open region of the case is 2 mm or more.

5. The method of claim 4,
Wherein the groove region comprises:
And at least one bending portion is bent at least once.

8. The method of claim 7,
Wherein the groove region comprises:
A first groove region disposed in a vertical direction with respect to an open region of the case, the first groove region being cut so that one side is connected to the open region of the case; And
And a second groove region disposed in a direction perpendicular to the first groove region and having one side cut to connect to the first groove region.

9. The method of claim 8,
Wherein the second groove region comprises:
And has a meander shape.

9. The method of claim 8,
The length of the second groove region may be,
Wherein the wavelength of the first band is 1/4 times the wavelength of the first band.

5. The method of claim 4,
The electronic device includes:
And a connection part for contacting the antenna pattern and connecting the antenna pattern to the circuit board.

12. The method of claim 11,
The connecting portion
Wherein the first case region and the second case region are disposed at the lower end of the region where the first case region and the second case region meet.

12. The method of claim 11,
The connecting portion
A feeding part that contacts the first case area and feeds the antenna pattern;
A first grounding portion contacting the second case region;
A first terminal electrically connecting the feeding part and the circuit board; And
And a second terminal connected to the ground of the circuit board and the first grounding portion.

14. The method of claim 13,
The connecting portion
And a matching portion disposed between the feeding portion and the first terminal, the matching portion matching an impedance of the antenna pattern.

15. The method of claim 14,
The matching unit may include:
An L-type matching circuit, a? -Type matching circuit, and a T-type matching circuit to match the impedances.

14. The method of claim 13,
The connecting portion
And an antenna pattern portion resonating in the second band.

5. The method of claim 4,
And a protection portion that fills the groove region with an insulating material.

5. The method of claim 4,
Further comprising: a protection portion that fills an upper portion of the antenna pattern with an insulating material.

The method according to claim 1,
In this case,
Wherein the plurality of antenna patterns comprise a plurality of antenna patterns.

The method according to claim 1,
The antenna pattern includes:
Wherein the resonator is a slit antenna resonating in the first band and the second band.

21. The method of claim 20,
The first band is a 2 GHz band,
And the second band is a 5 GHz band.

The method according to claim 1,
The antenna pattern includes:
A third groove region formed in a region where two sides of the case meet and cut so that one side is connected to the open region of the case;
A fourth groove region disposed inside the third groove region and having one side cut to connect to the open region of the case;
A third case region between the inside of the third groove region and the outside of the fourth groove region;
A fourth case region inside the fourth groove region; And
And a fifth case region on the outer side of the third groove region.

The method according to claim 1,
Wherein the case is a case for protecting the display device.

24. The method of claim 23,
The antenna pattern includes:
And at least one edge region of two lower edge regions of the display device.

1. A case of a metal material enclosing an electronic device,
Wherein an antenna pattern serving as a slit antenna is formed in an area where two sides of the case meet.