KR101795959B1 - An antenna including an antenna pattern formed on a top surface and a bottom surface of magnetic sheet - Google Patents

Abstract

Disclosed is an antenna which has an antenna pattern formed on the upper and lower surfaces of a magnetic sheet. In one embodiment, the antenna includes a magnetic sheet including a plurality of through holes, and an antenna pattern formed to extend over the upper and lower surfaces of the magnetic sheet through the plurality of through holes. The antenna pattern formed on the upper surface of the magnetic sheet and the antenna pattern formed on the lower surface of the magnetic sheet may not overlap each other.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an antenna including an antenna pattern formed on an upper surface and a lower surface of a magnetic substance sheet,

The following embodiments relate to an antenna in which antenna patterns are formed on upper and lower surfaces of a magnetic sheet.

An antenna installed in a portable terminal device is divided into an external antenna and an internal antenna depending on the installation position.

As the external antenna, an antenna such as a whip type, a helical type, or the like is used. The external antenna is fixedly installed on a side surface or an upper portion of the portable terminal device, and has a structure that can be drawn in and out by a user.

Such an external antenna is disadvantageous in that it is inconvenient for use and storage because it is installed outside the portable terminal device, and the appearance of the portable terminal device is deteriorated. In addition, since the space for installing the external antenna is secured outside the portable terminal device, the external design of the portable terminal device is restricted, the design is spoiled, and the miniaturization and slimming down of the portable terminal device are difficult.

In order to compensate for the disadvantages of such an external antenna, a built-in antenna system in which an antenna is installed inside a portable terminal device is mainly used.

Since the built-in antenna mainly uses a monopole type, a loop type or a planar inverted-F antenna (PIFA) and is installed inside the portable terminal device, A space in which the built-in antenna can be installed, and the installation space of the built-in antenna is reduced as the portable terminal is made slim or miniaturized.

In recent years, portable terminal apparatuses have become smaller and slimmer, and portable terminal apparatuses having an outer case made of a metal material are increasingly used for robustness and aesthetic design of portable terminal apparatuses.

However, the metal structure makes it difficult to radiate the antenna, and even if the antenna is implemented, it can handle only a limited band. Accordingly, in the case of a portable terminal having a metal structure, a metal case is limitedly applied only to a portion excluding the antenna region.

Embodiments can provide a technique of forming an antenna pattern extending over the upper and lower surfaces of a magnetic sheet.

Further, in the embodiments, the antenna pattern is formed on the top and bottom surfaces of the magnetic sheet to radiate different directions, so that strong induced current can be generated in the outer case realized with the metal material of the portable terminal device, It is possible to provide a technique that can improve the performance of the system.

In addition, the embodiments can provide a technique for preventing the antenna performance from being reduced by disposing the antenna based on the positional relationship of the slits formed in the outer case.

An antenna according to an embodiment includes a magnetic substance sheet including a plurality of through holes and an antenna pattern extending over upper and lower surfaces of the magnetic substance sheet through the plurality of through holes, The antenna pattern to be formed and the antenna pattern formed on the lower surface of the magnetic substance sheet may not be overlapped with each other.

The antenna pattern may be formed in the form of a coil for winding up the upper surface and the lower surface of the magnetic sheet through the plurality of through holes.

The antenna includes a first extended antenna pattern formed on a bottom surface of the magnetic sheet so as to correspond to an antenna pattern formed on an upper surface of the magnetic sheet and electrically connected to an antenna pattern formed on a lower surface of the magnetic sheet, And a second extended antenna pattern formed on the upper surface of the magnetic sheet so as to correspond to the antenna pattern formed on the lower surface of the magnetic sheet and electrically connected to the antenna pattern formed on the upper surface of the magnetic sheet.

The antenna may further include an insulating layer formed to cover an antenna pattern formed on an upper surface or a lower surface of the magnetic sheet.

An antenna disposed in an electronic device including a slit-formed case according to another embodiment includes: a magnetic sheet including a plurality of through-holes; and a plurality of antennas extending from upper and lower surfaces of the magnetic sheet through the plurality of through- Pattern, and at least a part of the magnetic sheet may cover the slit.

The antenna pattern formed on the upper surface of the magnetic substance sheet and the antenna pattern formed on the lower surface of the magnetic substance sheet may not be overlapped with each other.

And a boundary region between the antenna pattern formed on the upper surface of the magnetic substance sheet and the antenna pattern formed on the lower surface of the magnetic substance sheet overlap with the slit.
The antenna includes a first extended antenna pattern formed on a bottom surface of the magnetic sheet so as to correspond to an antenna pattern formed on an upper surface of the magnetic sheet and electrically connected to an antenna pattern formed on a lower surface of the magnetic sheet, And a second extended antenna pattern formed on the upper surface of the magnetic sheet so as to correspond to the antenna pattern formed on the lower surface of the magnetic sheet and electrically connected to the antenna pattern formed on the upper surface of the magnetic sheet.

The antenna pattern may be formed in the form of a coil for winding up the upper surface and the lower surface of the magnetic sheet through the plurality of through holes.

The antenna may further include an insulating layer formed to cover an antenna pattern formed on an upper surface or a lower surface of the magnetic sheet.

According to another aspect of the present invention, there is provided an antenna disposed in an electronic device including a slit formed case, the antenna including: a magnetic sheet including a plurality of through holes; and a plurality of through holes formed on the upper and lower surfaces of the magnetic sheet, And the magnetic sheet may be spaced apart from the slit so as not to cover the slit.

The antenna pattern formed on the upper surface of the magnetic substance sheet and the antenna pattern formed on the lower surface of the magnetic substance sheet may not be overlapped with each other.

The antenna includes a first extended antenna pattern formed on a bottom surface of the magnetic sheet so as to correspond to an antenna pattern formed on an upper surface of the magnetic sheet and electrically connected to an antenna pattern formed on a lower surface of the magnetic sheet, And a second extended antenna pattern formed on the upper surface of the magnetic sheet so as to correspond to the antenna pattern formed on the lower surface of the magnetic sheet and electrically connected to the antenna pattern formed on the upper surface of the magnetic sheet.

The antenna pattern may be formed in the form of a coil for winding up the upper surface and the lower surface of the magnetic sheet through the plurality of through holes.

The antenna may further include an insulating layer formed to cover an antenna pattern formed on an upper surface or a lower surface of the magnetic sheet.

1 is a schematic block diagram of an electronic device in which an antenna according to one embodiment is disposed.
2 is a structural diagram for explaining a position at which an antenna is disposed in an electronic device.
3 is a schematic side view of an example of the antenna shown in Fig.
4 is a plan view for explaining an example in which an antenna pattern is formed on a magnetic sheet in FIG.
5 is a schematic side view of another example of the antenna shown in Fig.
6 is a plan view for explaining an example in which an antenna pattern is formed on a magnetic sheet in FIG.
FIG. 7 is a view for explaining antenna radiation when the antenna of FIG. 3 or FIG. 5 is disposed and operated inside a case of an electronic device.
8 is a view for explaining an example in which the antenna of Fig. 3 or Fig. 5 is disposed inside the case of the electronic device.
Fig. 9 is a view for explaining another example in which the antenna of Fig. 3 or Fig. 5 is disposed inside the case of the electronic device.

It is to be understood that the specific structural or functional descriptions of embodiments of the present invention disclosed herein are merely illustrative of the scope of the present invention and are not intended to limit the scope of the present invention. May be embodied in various forms and are not limited to the embodiments described herein.

Embodiments in accordance with the concepts of the present invention are capable of various modifications and may take various forms, so that the embodiments are illustrated in the drawings and described in detail herein. However, it is not intended to limit the embodiments according to the concepts of the present invention to the specific disclosure forms, but includes changes, equivalents, or alternatives falling within the spirit and scope of the present invention.

The terms first, second, or the like may be used to describe various elements, but the elements should not be limited by the terms. The terms may be named for the purpose of distinguishing one element from another, for example without departing from the scope of the right according to the concept of the present invention, the first element being referred to as the second element, Similarly, the second component may also be referred to as the first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It will be understood that, in this specification, the terms " comprises ", or " having ", and the like are to be construed as including the presence of stated features, integers, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. Like reference symbols in the drawings denote like elements.

Fig. 1 is a schematic block diagram of an electronic device in which an antenna according to an embodiment is disposed, and Fig. 2 is a structural diagram for explaining a position where an antenna is disposed in an electronic device.

Referring to Figures 1 and 2, the antenna 200 may be disposed in the electronic device 100. For example, the antenna 200 may be disposed within the case 110 of the electronic device 100.

The electronic device 100 may be a personal computer (PC), a data server, or a portable electronic device. The portable electronic device may be a laptop computer, a mobile phone, a smart phone, a tablet PC, a mobile internet device (MID), a personal digital assistant (PDA), an enterprise digital assistant A digital still camera, a digital video camera, a portable multimedia player (PMP), a personal navigation device or a portable navigation device (PND), a portable game console (handheld console), an e-book e-book, or a smart device. For example, a smart device can be implemented as a smart watch or a smart band.

The case 110 of the electronic device 100 may include an upper portion 110-5, a middle portion 110-3, and a lower portion 110-7. Each of the upper portion 110-5, the central portion 110-3 and the lower portion 110-7 of the case 110 may be embodied as at least one of a conductive member, for example, stainless steel, metal, and aluminum.

The antenna 200 may be an antenna for NFC (Near Field Communication) and / or MST (Magnetic Secure Transmission) operation. The antenna 200 may be formed on the top and bottom surfaces of the magnetic sheet so that the antenna pattern can be radiated by generating a strong induction current in the case 110 implemented as a conductive member through radiation of different directions. As a result, the antenna 200 can improve the antenna performance. The structure of the antenna 200 will be described later with reference to Figs. 3 to 6. Fig.

The antenna 200 may be disposed inside the case 110 of the electronic device 100. The antenna 200 needs to be disposed inside the case 110 in consideration of the arrangement positions of various antennas installed in the electronic device 100. [

At this time, the antenna 200 has a positional relationship with a slit or a slit section of the case 110 defined by the upper portion 110-5 and the middle portion 110-3 of the case 110, And may be disposed inside the case 110 on the basis of the above.

For example, the antenna 200 may be arranged such that a portion of the antenna 200 covers a slit or a slit section of the case 110.

The antenna 200 may be disposed so as not to cover the slit or the slit section of the case 110 so as to be spaced apart from the slit or slit section of the case 110. [

FIG. 3 is a schematic side view of an example of the antenna shown in FIG. 1, and FIG. 4 is a plan view illustrating an example in which an antenna pattern is formed on a magnetic sheet in FIG.

3 and 4, the antenna 200 may include a magnetic sheet 210, an antenna pattern 230, and an insulating layer 250.

The magnetic substance sheet 210 may be embodied as a ferrite sheet. For example, the ferrite sheet may be at least one of Ni-Zn ferrite sheet, Mn-Zn ferrite sheet, Ni-Zn-Cu ferrite and the like.

The magnetic substance sheet 210 may include a plurality of through holes 220. The plurality of through holes 220 can penetrate from the upper surface 210-3 of the magnetic substance sheet 210 to the lower surface 210-5.

The antenna pattern 230 may be an antenna pattern for NFC and / or MST. For example, the antenna 230 may emit or receive signals for NFC and / or MST operation.

The antenna pattern 230 may be formed to extend over the upper surface 210-3 and the lower surface 210-5 of the magnetic substance sheet 210 through the plurality of through holes 220. [ For example, a part of the antenna pattern 230 is formed on the upper surface 210-3 of the magnetic substance sheet 210 and the remaining part of the antenna pattern 230 is formed on the lower surface 210-5 of the magnetic substance sheet 210 .

One end 230-3 and the other end 230-5 of the antenna pattern 230 are formed on the upper surface 210-3 of the magnetic substance sheet 210 and one end 230-3 of the antenna pattern 230, And the other end 230-5 of the antenna pattern 230 can be connected to the ground.

The antenna pattern 210 formed on the upper surface 210-3 and the antenna pattern 210 formed on the lower surface 210-5 may be formed to be electrically connected through the plurality of through holes 220. [ For example, the antenna pattern 210 has a coil shape in which the upper surface 210-3 and the lower surface 210-5 of the magnetic sheet 210 are wrapped with a plurality of through holes 220 .

4, the antenna pattern 210 positioned on the upper surface 210-3 of the magnetic substance sheet 210 is disposed on one corner of the upper surface 210-3, and the magnetic substance sheet 210, The antenna pattern 210 located on the lower surface 210-5 of the lower surface 210-5 may be arranged on the corner in the diagonal direction from one corner of the upper surface 210-3 among the corners of the lower surface 210-5. The antenna pattern 230 formed on the upper surface 210-3 of the magnetic substance sheet 210 is a solid line and the antenna pattern 230 formed on the lower surface 210-5 of the magnetic substance sheet 210 is a dotted line. have.

That is, the antenna pattern 210 located on the upper surface 210-3 of the magnetic substance sheet 210 and the antenna pattern 210 located on the lower surface 210-5 of the magnetic substance sheet 210 do not overlap each other, (Not shown).

The insulating layer 250 may be formed to cover the antenna pattern 230 formed on the upper surface 210-3 or the lower surface 210-5 of the magnetic substance sheet 210 to insulate the antenna pattern 230. [

FIG. 5 is a schematic side view of another example of the antenna shown in FIG. 1, and FIG. 6 is a plan view illustrating an example in which the antenna pattern is formed on the magnetic sheet in FIG.

5 and 6, each of the configurations 210, 230 and 250 of the antenna 200 of FIG. 5 may be substantially the same as the respective configurations 210, 230 and 250 of the antenna 200 of FIG. 3 have. Therefore, the detailed description of the roles and operations of the respective components is omitted.

The antenna pattern 230 of FIG. 5 may also extend over the upper surface 210-3 and the lower surface 210-5 of the magnetic substance sheet 210 through the plurality of through holes 220. FIG. For example, a part of the antenna pattern 230 is formed on the upper surface 210-3 of the magnetic substance sheet 210 and the remaining part of the antenna pattern 230 is formed on the lower surface 210-5 of the magnetic substance sheet 210 .

That is, the antenna pattern 210 shown in FIG. 5 also has a coil shape in which a portion of the upper surface 210-3 and the lower surface 210-5 of the magnetic sheet 210 is wrapped through the plurality of through holes 220 As shown in FIG.

The antenna 200 of FIG. 5 may further include an extended antenna pattern 235 formed on at least one of the upper surface 210-3 and the lower surface 210-5 of the magnetic substance sheet 210.

For example, the extended antenna pattern 235 formed on the upper surface 210-3 of the magnetic substance sheet 210 is formed to correspond to the antenna pattern 230 formed on the lower surface 210-5 of the magnetic substance sheet 210 . The extended antenna pattern 235 formed on the upper surface 210-3 of the magnetic substance sheet 210 is formed to be electrically connected to the antenna pattern 230 formed on the upper surface 210-3 of the magnetic substance sheet 210 .

The extended antenna pattern 235 formed on the lower surface 210-5 of the magnetic substance sheet 210 corresponds to the antenna pattern 230 formed on the upper surface 210-3 of the magnetic substance sheet 210 . At this time, the extended antenna pattern 235 formed on the lower surface 210-5 of the magnetic substance sheet 210 is formed to be electrically connected to the antenna pattern 230 formed on the lower surface 210-5 of the magnetic substance sheet 210 When the extended antenna pattern 235 is formed on the upper surface 210-3 and the lower surface 210-5 of the magnetic substance sheet 210 as shown in FIG. 6, the upper surface 210-3 of the magnetic substance sheet 210 Patterns 230 and 235 formed on the magnetic substance sheet 210-3 and patterns 230 and 235 formed on the lower surface 210-5 of the magnetic substance sheet 210 may be formed on the magnetic substance sheet 210 so as to face each other.

The antenna pattern 230 and / or the extended antenna pattern 235 are formed on the upper surface 210-3 and the lower surface 210-5 of the magnetic sheet 210 as described with reference to Figs. 3 to 6 Therefore, the antenna 200 can be radiated in different directions.

FIG. 7 is a view for explaining antenna radiation when the antenna of FIG. 3 or 5 is disposed and operated inside a case of an electronic device, and FIG. 8 is a view for explaining a case where the antenna of FIG. 3 or FIG. FIG. 9 is a view for explaining another example in which the antenna of FIG. 3 or FIG. 5 is disposed inside the case of the electronic device.

7 to 9, the case 110 of the electronic device 100 is formed of metal in the conductive member, and the antenna pattern 230 is formed on the upper surface 210-3 of the magnetic substance sheet 210 It is assumed that the antenna 200 formed in the antenna 210-5 is disposed in the case 110. [

Referring to FIG. 7, the antenna 200 may implement a frequency through the antenna pattern 230 formed on the upper surface 210-3 and the lower surface 210-5 of the magnetic substance sheet 210. FIG. Since the antenna pattern 230 is formed on the upper surface 210-3 and the lower surface 210-5 of the magnetic substance sheet 210, the antenna 200 can radiate different directions.

At this time, the antenna pattern 230 formed on the lower surface 210-5 of the magnetic substance sheet 210 may be disposed on the case 100 formed of a conductive member, for example, a metal. The first region R1 corresponding to the antenna pattern 210 formed on the upper surface 210-3 and the second region R2 corresponding to the antenna pattern 210 formed on the lower surface 210-5 are different from each other Directional radiation is generated. Especially, in the second region R2, a strong induction current can be generated in the case 110, which is realized with a metal, so that it can be radiated.

8 and 9, the magnetic substance sheet 210 is disposed on the upper portion 110 of the case 110 in consideration of the position of various antennas installed in the electronic device 100 and the performance improvement of the antenna 200. [ -5 and the center portion 110-3 of the case 110. The slit or slit portion of the case 110 is defined by the center portion 110-3 and the center portion 110-3.

For example, the magnetic substance sheet 210 may be arranged to cover a slit or a slit section of the case 110. For example, the boundary region between the antenna pattern formed on the upper surface of the magnetic substance sheet 210 and the antenna pattern formed on the lower surface of the magnetic substance sheet 210 may be disposed so as to overlap with the slits of the case 110. The magnetic substance sheet 210 is formed such that the end of the magnetic substance sheet 210 on which the antenna pattern 210 formed on the upper surface 210-3 is located is positioned in the middle portion 110-3 of the case 110, For example, the end of the slit section.

The magnetic substance sheet 210 may be disposed so as not to cover the slit or the slit section of the case 110 so as to be spaced apart from the slit or slit section of the case 110. [ At this time, the magnetic substance sheet 210 can be arranged in the horizontal direction of the slit of the case 110, but the position of the magnetic substance sheet 210 can be independent of the position in the transverse direction.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA) , A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

100: Electronic device
110: Case
110-3: Central
110-5:
110-7: bottom 200: antenna
210: Magnetic body sheet
210-3: Top surface of the magnetic substance sheet
210-5: the lower surface of the magnetic sheet
220: a plurality of through holes
230: antenna pattern
230-3: A pair of antenna patterns
230-5: the other end of the antenna pattern
250: insulating layer
R1: first region
R2: second region

Claims (15)

A magnetic sheet including a plurality of through holes; And
And an antenna pattern formed to extend over the upper and lower surfaces of the magnetic sheet through the plurality of through holes,
/ RTI >
Wherein the antenna pattern formed on one corner of the upper surface of the magnetic substance sheet and the antenna pattern formed at the corner of the one corner and the diagonal line of the corner of the lower surface of the magnetic substance sheet are formed so as not to overlap with each other, Wherein the antenna pattern is formed in the form of a coil for winding up the upper surface and the lower surface of the magnetic sheet through the plurality of through holes.
delete The method according to claim 1,
A first extended antenna pattern formed on a lower surface of the magnetic sheet so as to correspond to an antenna pattern formed on an upper surface of the magnetic sheet and electrically connected to an antenna pattern formed on a lower surface of the magnetic sheet; And
A second extension antenna pattern formed on an upper surface of the magnetic sheet so as to correspond to an antenna pattern formed on a lower surface of the magnetic substance sheet and electrically connected to an antenna pattern formed on an upper surface of the magnetic substance sheet,
Gt; antenna. ≪ / RTI >
The method according to claim 1,
An insulating layer formed to cover an antenna pattern formed on an upper surface or a lower surface of the magnetic substance sheet;
≪ / RTI >
An antenna disposed in an electronic device including a case with a slit,
A magnetic sheet including a plurality of through holes; And
And an antenna pattern formed to extend over the upper and lower surfaces of the magnetic sheet through the plurality of through holes,
/ RTI >
The antenna pattern formed at one corner of the upper surface of the magnetic substance sheet and the antenna pattern formed at the corner of the one corner and the diagonal line among the corners of the lower surface of the magnetic substance sheet are formed so as not to overlap each other,
Wherein at least a portion of the magnetic sheet is arranged to cover the slit,
Wherein the antenna pattern is formed in a coil shape that winds up a part of an upper surface and a lower surface of the magnetic substance sheet through the plurality of through holes.
delete 6. The method of claim 5,
Wherein a boundary region between an antenna pattern formed on an upper surface of said magnetic substance sheet and an antenna pattern formed on a lower surface of said magnetic substance sheet is overlapped with said slit.
6. The method of claim 5,
A first extended antenna pattern formed on a lower surface of the magnetic sheet so as to correspond to an antenna pattern formed on an upper surface of the magnetic sheet and electrically connected to an antenna pattern formed on a lower surface of the magnetic sheet; And
A second extension antenna pattern formed on an upper surface of the magnetic sheet so as to correspond to an antenna pattern formed on a lower surface of the magnetic substance sheet and electrically connected to an antenna pattern formed on an upper surface of the magnetic substance sheet,
Gt; antenna. ≪ / RTI >
delete 6. The method of claim 5,
An insulating layer formed to cover an antenna pattern formed on an upper surface or a lower surface of the magnetic substance sheet;
≪ / RTI >
An antenna disposed in an electronic device including a case with a slit,
A magnetic sheet including a plurality of through holes; And
And an antenna pattern formed to extend over the upper and lower surfaces of the magnetic sheet through the plurality of through holes,
/ RTI >
Wherein an antenna pattern formed at one corner of the upper surface of the magnetic substance sheet and an antenna pattern formed at a corner of the one corner and a diagonal line of the corner of the lower surface of the magnetic substance sheet are formed so as not to overlap with each other, As shown in FIG.
Wherein the magnetic substance sheet is disposed so as not to cover the slit and spaced apart from the slit,
Wherein the antenna pattern is formed in a coil shape that winds up a part of an upper surface and a lower surface of the magnetic substance sheet through the plurality of through holes.
delete 12. The method of claim 11,
A first extended antenna pattern formed on a lower surface of the magnetic sheet so as to correspond to an antenna pattern formed on an upper surface of the magnetic sheet and electrically connected to an antenna pattern formed on a lower surface of the magnetic sheet; And
A second extension antenna pattern formed on an upper surface of the magnetic sheet so as to correspond to an antenna pattern formed on a lower surface of the magnetic substance sheet and electrically connected to an antenna pattern formed on an upper surface of the magnetic substance sheet,
Gt; antenna. ≪ / RTI >
delete 12. The method of claim 11,
An insulating layer formed to cover an antenna pattern formed on an upper surface or a lower surface of the magnetic substance sheet;
≪ / RTI >

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