KR20170073964A

KR20170073964A - Mobile terminal

Info

Publication number: KR20170073964A
Application number: KR1020150182821A
Authority: KR
Inventors: 윤상재; 오형훈
Original assignee: 엘지전자 주식회사
Priority date: 2015-12-21
Filing date: 2015-12-21
Publication date: 2017-06-29

Abstract

An antenna for performing at least two low-band regions is mounted on one side of a mobile terminal having a side metal frame, and a side metal member for forming a side surface is formed in order to minimize a segment region of the side metal frame, A first radiator constituting a part of the side metal frame, a second radiator constituting another part of the side metal frame, one end of which is spaced apart from one end of the first radiator, a second radiator which is surrounded by the side metal frame, A slot formed by one cut-out region of the grounding member and one region of the second radiating member, a first feed portion for supplying power to the first radiator, And a second power feeder for supplying power to the second radiator.

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a mobile terminal equipped with an antenna or a mobile terminal provided with a side metal frame serving as an antenna.

The antenna of the mobile terminal may require various frequency ranges depending on the purpose.

An antenna for transmitting and receiving long distance data such as LTE, an antenna for GPS implementation, and an antenna for short-range wireless communication such as Wi-Fi.

Therefore, the mobile terminal needs to perform radiation for a wide frequency range. However, the antenna radiation for each frequency range should be performed independently, and the effect of isolation should be satisfied to minimize mutual influence.

Although the antennas of various frequency ranges must be independently performed, the mobile terminal is required to be light in weight and small in size.

That is, an antenna or an antenna pattern that satisfies various frequency ranges within a narrow area and has good radiation efficiency in each frequency region is required.

Furthermore, the material of the case forming the outer surface of the mobile terminal can be used in a wide range from nonconductive materials using polycarbonate, polyamide, or a mixture of other materials to conductive materials such as metal.

When a nonconductive material is applied to a case of a mobile terminal, it is common to implement an antenna by mounting a separate antenna pattern therein.

On the other hand, when a metal material, which is a conductive material, is applied to a case of a mobile terminal, a case of a metal material can directly perform a part of the antenna pattern.

In particular, when the side of the mobile terminal is made of a metal material, the side metal frame can serve as an antenna pattern.

However, when an antenna of a low-band frequency region is performed in one area of one side of the side metal frame of the mobile terminal, a space available for the antenna emitter in the remaining area of one side is restricted, (Middle band) frequency domain.

Therefore, when dual PIFA is provided in the lower end region of the mobile terminal, only an antenna implementation corresponding to one low-band and middle-band frequency region is possible.

In addition, in order to implement the dual PIFA, the PIFA of each region requires a non-conductive segment region on both sides. When the side metal frame is used as the dual PIFA in order to have a plurality of segment regions in this conventional manner, The metal frame can not be provided integrally.

An object of the present invention is to mount an antenna that performs two or more low-band regions on one side of a mobile terminal, which is the above-mentioned problem.

Another object is to minimize the segmented area of the side metal frame that serves as an antenna.

According to an aspect of the present invention, there is provided a side metal frame which forms a side facade, a first radiator that constitutes a part of the side metal frame, another part of the side metal frame, A second radiator spaced apart from one end of the first radiator, a ground member surrounded by the side metal frame and cut out in a corner region facing the second radiator, And a slot formed by the cut-out region of the grounding member, a first feeder for supplying power to the first radiator, and a second feeder for supplying power to the second radiator. Thereby providing a mobile terminal.

According to another aspect of the present invention, there is provided a plasma display panel including a first ground terminal for connecting the other end of the first radiator to the ground member, and a second ground terminal for connecting the other end of the second radiator to the ground member, The mobile terminal further comprising:

According to another aspect of the present invention, there is provided a mobile terminal, wherein the side metal frame includes an integral metal member and includes a bent shape corresponding to four corner areas of the mobile terminal.

According to another aspect of the present invention, there is provided a plasma display panel further comprising a slit formed between one end of the first radiator and one end of the second radiator, wherein the side metal frame includes an integral metal member, Wherein the mobile terminal includes a curved shape corresponding to the four corner areas of the mobile terminal.

According to another aspect of the present invention, there is provided a mobile terminal, wherein the first radiator and the second radiator form a part of each of the first and second sides of the mobile terminal, .

According to another aspect of the present invention, there is provided a mobile terminal, wherein the first radiator and the second radiator each include a letter 'A' shape.

According to another aspect of the present invention, there is provided a mobile terminal further comprising a third radiator extending to the first radiator.

According to another aspect of the present invention, there is provided a mobile terminal, wherein the third radiator includes a region diverged from one end of the first radiator and provided in a direction of the first feeder.

According to another aspect of the present invention, there is provided a mobile terminal, wherein the second feed part is provided at one point in one area of the second radiator.

According to another aspect of the present invention, there is provided a mobile terminal further comprising a slit formed between one end of the first radiator and one end of the second radiator, and further comprising a non-conductive injection member filled in the slit. Lt; / RTI >

According to another aspect of the present invention, there is provided a mobile terminal further comprising an ear jack hole formed in the center of the injection member.

According to another aspect of the present invention, there is provided a display device including a display unit provided on a front surface of a mobile terminal and a main substrate provided on a back surface of the display unit, wherein the ground member includes a metal plate provided between the display unit and the main substrate, And a mobile terminal.

According to another aspect of the present invention, there is provided a mobile terminal, further comprising a switch provided at one point of the first radiator to adjust an amount of current flowing to the ground member.

The effect of the mobile terminal according to the present invention will be described below.

According to at least one of the embodiments of the present invention, the size of the mobile terminal can be reduced.

In addition, according to at least one embodiment of the present invention, there is an advantage that the segment area of the side metal frame of the mobile terminal can be minimized.

Further scope of applicability of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, such as the preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.

1a and 1b are conceptual diagrams showing an example of a mobile terminal related to the present invention from different directions.
2 is a schematic view of a bottom region of a mobile terminal to which a conventional antenna pattern is applied.
3 is a schematic diagram relating to an antenna pattern applied to a mobile terminal according to the present invention.
4 is a schematic diagram relating to an antenna pattern applied to a mobile terminal according to the present invention.
5 is a schematic diagram illustrating a frequency domain of a mobile terminal according to the present invention.
6 is a rear view of a mobile terminal according to the present invention.
FIG. 7 shows a cross section of the region AA 'of FIG. 6.
8 is a rear perspective view of a mobile terminal according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , &Lt; / RTI > equivalents, and alternatives.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a slate PC A tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, and a head mounted display (HMD). have.

However, it will be appreciated by those skilled in the art that the configuration according to the embodiments described herein may be applied to fixed terminals such as a digital TV, a desktop computer, a digital signage, and the like, will be.

1a and 1b are conceptual diagrams showing an example of the mobile terminal 100 related to the present invention from different directions.

Referring to FIGS. 1A and 1B, the disclosed mobile terminal 100 includes a bar-shaped terminal body. However, the present invention is not limited thereto and can be applied to various structures such as a folder type, a flip type, a slide type, a swing type, and a swivel type in which a watch type, a clip type, a glass type or two or more bodies are relatively movably coupled . A description of a particular type of mobile terminal, although relevant to a particular type of mobile terminal, is generally applicable to other types of mobile terminals.

FIGS. 1A and 1B are schematic representations of the mobile terminal 100 of the present invention, and the positions of specific shapes and configurations may be different as needed.

Here, the terminal body can be understood as a concept of referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (for example, a frame, a housing, a cover, and the like) that forms an appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

The side metal frame 210 may form the side surface of the mobile terminal 100. In particular, the side metal frame 210 may form the side surface of the mobile terminal 100, except for the slit 240, which will be described later.

The side metal frame 210 may be provided to cover the side surfaces of the front case 101 and the rear case 102 of the mobile terminal 100. The side metal frame 210 may serve to fix at least one of the front case 101, the rear case 102 and the rear cover 103. [

The side metal frame 210 may simultaneously perform an antenna function as described later.

When the side metal frame 210 is provided, the rear cover 103 may serve as a rear case 102, or may be provided separately.

A display unit 151 is disposed on a front surface of the terminal body to output information. The window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101. [

In some cases, electronic components may also be mounted on the rear case 102. Electronic parts that can be mounted on the rear case 102 include detachable batteries, an identification module, a memory card, and the like. In this case, a rear cover 103 for covering the mounted electronic components can be detachably coupled to the rear case 102. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic parts mounted on the rear case 102 are exposed to the outside.

As shown, when the rear cover 103 is coupled to the rear case 102, a side portion of the rear case 102 can be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the engagement. Meanwhile, the rear cover 103 may be provided with an opening for exposing the camera 121b and the sound output unit 152b to the outside.

These cases 101, 102, and 103 may be formed by injection molding of synthetic resin or may be formed of metal such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

However, it is preferable that the side metal frame 210 is made of metal, and at least one of the remaining cases 101, 102 and 103 is made of a non-conductive material.

The mobile terminal 100 may be configured such that one case provides the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, a universal mobile terminal 100 in which a synthetic resin or metal is connected from the side to the rear side can be realized.

Meanwhile, the mobile terminal 100 may include a waterproof unit (not shown) for preventing water from penetrating into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, And a waterproof member for sealing the inside space of the oven.

The mobile terminal 100 is provided with a display unit 151, first and second sound output units 152a and 152b, a proximity sensor 141, an illuminance sensor 142, a light output unit 154, Cameras 121a and 121b, first and second operation units 123a and 123b, a microphone 122, an interface unit 160, and the like.

1A and 1B, a display unit 151, a first sound output unit 152a, a proximity sensor 141, an illuminance sensor 142, an optical output unit (not shown) A second operation unit 123b, a microphone 122 and an interface unit 160 are disposed on a side surface of the terminal body, And a mobile terminal 100 having a second sound output unit 152b and a second camera 121b disposed on a rear surface thereof.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed, or placed on different planes. For example, the first operation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side surface of the terminal body rather than the rear surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven by the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information .

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, a 3D display, and an e-ink display.

In addition, the display unit 151 may exist in two or more depending on the embodiment of the mobile terminal 100. In this case, the mobile terminal 100 may be provided with a plurality of display portions spaced apart from each other or disposed integrally with one another, or may be disposed on different surfaces, respectively.

The display unit 151 may include a touch sensor that senses a touch with respect to the display unit 151 so that a control command can be received by a touch method. When a touch is made to the display unit 151, the touch sensor senses the touch, and the control unit 180 generates a control command corresponding to the touch based on the touch. The content input by the touch method may be a letter or a number, an instruction in various modes, a menu item which can be designated, and the like.

The touch sensor may be a film having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or may be a metal wire . Alternatively, the touch sensor may be formed integrally with the display. For example, the touch sensor may be disposed on a substrate of the display or inside the display.

In this way, the display unit 151 can form a touch screen together with the touch sensor. In this case, the touch screen can function as a user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to a user's ear and the second sound output unit 152b may be implemented as a loud speaker for outputting various alarm sounds or multimedia playback sounds. ). &Lt; / RTI >

The window 151a of the display unit 151 may be provided with an acoustic hole for emitting the sound generated from the first acoustic output unit 152a. However, the present invention is not limited to this, and the sound may be configured to be emitted along an assembly gap (for example, a gap between the window 151a and the front case 101) between the structures. In this case, the appearance of the mobile terminal 100 can be made more simple because the hole formed independently for the apparent acoustic output is hidden or hidden.

The optical output unit 154 is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and reception of information through an application. The control unit 180 may control the light output unit 154 to terminate the light output when the event confirmation of the user is detected.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in the photographing mode or the video communication mode. The processed image frame can be displayed on the display unit 151 and can be stored in the memory 170. [

The first and second operation units 123a and 123b may be collectively referred to as a manipulating portion as an example of a user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 have. The first and second operation units 123a and 123b can be employed in any manner as long as the user is in a tactile manner such as touch, push, scroll, or the like. In addition, the first and second operation units 123a and 123b may be employed in a manner that the user operates the apparatus without touching the user through a proximity touch, a hovering touch, or the like.

In this figure, the first operation unit 123a is a touch key, but the present invention is not limited thereto. For example, the first operation unit 123a may be a mechanical key, or a combination of a touch key and a touch key.

The contents input by the first and second operation units 123a and 123b can be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b receives a command from the first or second sound output unit 152a or 152b The size of the sound, and the change of the display unit 151 to the touch recognition mode.

On the other hand, a rear input unit (not shown) may be provided on the rear surface of the terminal body as another example of the user input unit 123. The rear input unit is operated to receive a command for controlling the operation of the mobile terminal 100, and input contents may be variously set. For example, commands such as power on / off, start, end, scrolling, and the like, the size adjustment of the sound output from the first and second sound output units 152a and 152b, And the like can be inputted. The rear input unit may be implemented as a touch input, a push input, or a combination thereof.

The rear input unit may be disposed so as to overlap with the front display unit 151 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body such that when the user holds the terminal body with one hand, the rear input unit can be easily manipulated using the index finger. However, the present invention is not limited thereto, and the position of the rear input unit may be changed.

When a rear input unit is provided on the rear surface of the terminal body, a new type of user interface using the rear input unit can be realized. When the first operation unit 123a is not disposed on the front surface of the terminal body in place of at least a part of the functions of the first operation unit 123a provided on the front surface of the terminal body, The display unit 151 may be configured as a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing the fingerprint of the user, and the controller 180 may use the fingerprint information sensed through the fingerprint recognition sensor as authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive the user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations to receive stereophonic sound.

The interface unit 160 is a path through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 may include a connection terminal for connection with another device (for example, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), a Bluetooth port A wireless LAN port, or the like), or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented as a socket for receiving an external card such as a SIM (Subscriber Identification Module) or a UIM (User Identity Module) or a memory card for storing information.

And a second camera 121b may be disposed on a rear surface of the terminal body. In this case, the second camera 121b has a photographing direction which is substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera can be named an 'array camera'. When the second camera 121b is configured as an array camera, images can be taken in various ways using a plurality of lenses, and a better quality image can be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.

And a second sound output unit 152b may be additionally disposed in the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used for implementing a speakerphone mode in a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be embedded in the terminal body or formed in the case. For example, an antenna constituting a part of the broadcast receiving module may be configured to be able to be drawn out from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103, or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit for supplying power to the mobile terminal 100. The power supply unit may include a battery 191 built in the terminal body or configured to be detachable from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to be wirelessly chargeable through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

The rear cover 103 is configured to be coupled to the rear case 102 so as to cover the battery 191 to restrict the release of the battery 191 and to protect the battery 191 from external impact and foreign matter . When the battery 191 is detachably attached to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

The mobile terminal 100 may be provided with an accessory that protects the appearance or supports or expands the function of the mobile terminal 100. [ One example of such an accessory is a cover or pouch that covers or accommodates at least one side of the mobile terminal 100. [ The cover or pouch may be configured to interlock with the display unit 151 to expand the function of the mobile terminal 100. Another example of an accessory is a touch pen for supplementing or extending a touch input to the touch screen.

Hereinafter, embodiments that can be implemented in a mobile terminal configured as above will be described with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

2 is a schematic view of a lower end region of a mobile terminal 300 to which a conventional antenna pattern is applied.

At least some areas 311 and 312 of the side metal frame 310 of the mobile terminal 300 may serve as an antenna.

Generally, antennas can be implemented in the upper and lower end regions of the mobile terminal 300.

A relatively long radiator is required to perform radiation for the low frequency region of the antenna, while a relatively short radiator is required to perform radiation for the high frequency region.

A dual PIFA in which two planar inverted F antennas (hereinafter, referred to as PIFA) are adjacent to each other is provided at the lower left and lower right sides of the mobile terminal 300 in the related art.

The lower left region 311 of the side metal frame 310 can serve as a radiator of the A region PIFA. The lower right region 312 of the side metal frame 312 can serve as a radiator of the B region PIFA.

When any one of the A region PIFA and the B region PIFA performs an antenna in a low band frequency region (corresponding to the lower left side in FIG. 2), there is a restriction on a space available as an antenna radiator, (Corresponding to the lower right side in FIG. 2) of the antenna in the middle band frequency domain.

Therefore, when a dual PIFA is provided in the lower end region of the mobile terminal 100, only an antenna implementation corresponding to one low-band and middle-band frequency region is possible.

To implement a dual PIFA, each region of PIFA requires a non-conductive segment region 330 on both sides.

When the side metal frame 310 is used as a dual PIFA to provide a plurality of segmented regions 330 in this conventional manner, the side metal frame 310 can not be integrally formed.

The non-conductive material provided in the segmented region 330 is generally injected into a metal injection mold, and NC machining is performed on the integral metal injection mold for such injection. Therefore, the cost due to the NC machining and the double injection is high.

Further, the plurality of segmented regions 330 have a disadvantage that they impair the aesthetics of the side metal frame 310.

3 is a schematic diagram related to an antenna pattern applied to the mobile terminal 100 related to the present invention.

As described above, the side metal frame 210 of the mobile terminal 100 can perform a part of the function of the antenna. That is, the side metal frame 210 of the mobile terminal 100 may serve as a radiator of the antenna.

The portion of the side metal frame 210 serving as the antenna radiator may be referred to as a first radiator 211 and a second radiator 212, which will be described later.

Although the description below is based on the lower end of the mobile terminal 100 in order to prevent duplication of explanation, the mobile terminal 100 may be provided at the upper end of the mobile terminal 100, or may be provided on at least one side of the left and right sides have.

The first radiator 211 may form a part of the side metal frame 210.

One end of the first radiating element 211 and one end of the second radiating element 212 may form a slit 240 having a predetermined gap.

The first radiator 211 may include a portion that is electrically connected to the ground member 220 at one end forming the slit 240, that is, to a point where the first ground terminal 251 to be described later is located.

That is, the first radiator 211 may form part of a lower surface of the mobile terminal 100 and a part of one side surface of the left and right surfaces. The first radiator 211 may include a shape that is bent at one point such as an 'a' shape. The bent point of the first radiator 211 may correspond to one corner of the mobile terminal 100.

The second radiator 212 may constitute another portion of the side metal frame 210.

The second radiator 212 may include a portion that is electrically connected to the ground member 220 at one end forming the slit 240, that is, to a point where the second ground terminal 252 to be described later is located. That is, one end of the second radiator 212 may be spaced apart from one end of the first radiator 211.

That is, the second radiator 212 may form a portion of the lower surface side of the mobile terminal 100 and a portion of the other side surface of the left and right side surfaces. The second radiator 212 may also include a shape that is bent at one point, such as an 'a' shape. The bent point of the second radiator 212 may correspond to another corner of the mobile terminal 100.

The first radiator 211 and the second radiator 212 may form a part of each of both sides of the mobile terminal 100, which face the entire one side and one side of the mobile terminal 100. Particularly, the first radiator 211 and the second radiator 212 may form part of the lower side and the left and right sides of the mobile terminal 100, respectively.

The slit 240 may be formed between one end of the first radiator 211 and one end of the second radiator 212. The slit 240 may have a length not more than a specific width, as described later, to serve as a capacitor in an antenna radiation pattern.

The grounding member 220 may be surrounded by the side metal frame 210 of the mobile terminal 100 to perform a ground function in the antenna radiation pattern.

6) or the main board 281 (see FIG. 6) can perform the function of the grounding member 220, and the grounding member 220 can serve as a separate metal plate 283 6) may be connected to perform the role of the grounding member 220 at the same time.

The ground member 220 can be cut out of a corner area 224 opposed to the second radiator 212.

One region of the second radiator 212 and the cut-out region 224 of the grounding member 220 may form a slot 224.

The slot region 224 allows the antenna current pattern to be described later to flow outside the slot, thereby performing a function of extending the length of the current pattern as compared with the case where the slot region 224 is not present.

The height H and width W of the slot region 224 may vary depending on the frequency region of the antenna pattern.

The entire region of the ground member 220 except for the slot region 224 may have a rectangular shape.

One side of the grounding member 220 having the slot region 224 may be spaced a first distance N or a second distance F away from the first side N of the side metal frame 210. The two sides may be provided in parallel with each other.

An area spaced apart from the side metal frame 210 by a first distance N may be referred to as a pattern adjacent portion 2231 and an area spaced by a second distance F may be referred to as a pattern spacing portion 2232. [

One side of the left and right side surfaces of the ground member 220 is defined as the first side surface 221 and the opposite side surface opposite to the first side surface 221 is defined as the second side surface 222 with respect to the left- The first side surface 221 may be electrically connected to the other end of the first radiator 211 through the first ground terminal 251.

That is, the first ground terminal 251 can connect the other end of the first radiator 211 and the ground member 220. The connection point may be in line with or in proximity to the proximal portion 2231 of the grounding member 220 in particular.

The second ground terminal 252 may connect the other end of the second radiator 212 and the ground member 220 at one end of the slot region 224. That is, the connection point of the second ground terminal 252 may be on the same line or in the vicinity of the separation portion 2232 of the ground member 220.

The third radiator 230 may be provided in the first radiator 211 to electrically extend the length of the radiator to secure a low-band frequency region.

The third radiator 230 may be disposed on one end of the first radiator 211, that is, on the slit 240, if necessary. The third radiator 230 may be spaced far from the first power feeder 261 when the third radiator 230 is offset from one end of the first radiator 211, that is, the slit 240.

The third radiator 230 may include a region branched from one end of the first radiator 211 and bent in the direction of the first feeder 261 to be parallel to one side of the first radiator 211.

The length of the first radiator 211 and the length of the third radiator 230, that is, the length of the third radiator 230, that is, the length of the third radiator 230, The entire radiation pattern length can be ensured as long as possible to realize radiation in the low-band region.

The first ground terminal 251 electrically connects the other end of the first radiator 211 and the ground member 220. The second ground terminal 252 electrically connects the other end of the second radiator 212 and the ground member 220, Can be electrically connected.

The first feeder 261 may supply power to the first radiator 211 and the second feeder 262 may supply power to the second radiator 212.

The first pattern current flows through the first radiator 211, the slit 240, the second radiator 212, the spacing portion 2232 of the grounding member 220 and the grounding member 220 through the first feeding portion 261. The current direction can be formed in the order of the adjacent portions 2231 of the gate electrode 2231 in this order. A portion of the first pattern current may be diverted to the third radiator 230.

The second pattern current flows through the second feeding part 262 to the second radiator 212, the slit 240, the first radiator 211, the adjacent part 2231 of the grounding member 220 and the grounding member 220, It is possible to form the current direction in the order of the spacing portions 2232 of the first electrode 2232.

The third pattern current may form the current direction in the order of the second radiator 212, the slit 240, and the third radiator 230 through the second feeder 262.

Two low-band frequency regions and one middle / high-band frequency region can be formed through a combination of PIFA and slot 224 type antennas unlike the prior art.

That is, the first pattern current forms one low-band frequency region, the second pattern current separately forms one low-band frequency region, and the third pattern current forms one middle / high-band frequency region .

The first feeder 261 may be provided on a side farther from one end of the first radiator 211. That is, the first power feeder 261 may be biased toward the first side 221 of the ground member 220. Since the first feeder 261 is provided on the far side of the first radiator 211, the long radiator can be disposed in the direction of the first radiator 211 to serve as the PIFA .

The second feeder 262 may be provided at one point corresponding to the slot 224 of the second radiator 212. That is, the second feeding part 262 may be provided at one of the areas forming the slot 224 in the second radiator. The second feeding part 262 is provided at one point corresponding to the slot 224 region of the second radiator 212 to form the slot 224 type antenna pattern.

As a result, the first power feeder 261 and the second power feeder 262 can be disposed as far as possible in the lower end region of the mobile terminal 100.

In addition to the above-mentioned reasons, since the first power feeder 261 and the second power feeder 262 are spaced apart from each other, the direction of the ground current is directed in the other direction, and thus the ECC (Envelope Correlation Coefficient) That is, the degree of overlap of the respective radiation patterns may be lowered.

The slit 240 may be provided at the lower end of the mobile terminal 100. When the user grasps the mobile terminal 100, since the probability of holding the lower region of the mobile terminal 100 is relatively lower than the probability of grasping the upper region or the side region, It is possible to minimize the interference of the role of the slit 240.

The slit 240 may be provided in a lower portion of the mobile terminal 100 so as to be biased toward the second side 222 of the ground member 220, that is, in the direction of the second radiator 212. This is to secure the antenna pattern length of the PIFA by the first radiator 211. At the same time, if the distance from the second feeding part 262 to the slot 224 type antenna is excessively large, there is a problem in forming the frequency region.

The switch 270 may be provided at one point of the first radiator 211. The switch 270 may serve as an inductor. As the inductor value increases, the impedance value becomes large to prevent the current. Thus, the amount of current flowing to the ground member 220 can be adjusted by adjusting the inductor value through the switch 270.

When the amount of current flowing to the grounding member 220 is adjusted, a certain portion of the radiation frequency region can be adjusted. When the inductor value of the switch 270 is increased, the current does not flow to the ground member 220 connected to the switch 270, so that a relatively low radiation frequency region can be formed. Conversely, when the inductor value of the switch 270 is lowered, a part of the current flows to the ground member 220 connected to the switch 270 to form a relatively high radiation frequency region.

4 is a schematic diagram related to an antenna pattern applied to the mobile terminal 100 related to the present invention.

Only the antenna mounted on the lower end of the mobile terminal 100 has been described in the above embodiment.

In this embodiment, the antennas mounted in the entire area of the mobile terminal 100 will be described.

A first antenna pattern formed by a first radiator 211 on the lower side of the mobile terminal 100 and a second radiator 212 on the other side of the lower side of the mobile terminal 100, And an antenna pattern in the middle-band / high-band frequency domain.

The third antenna pattern provided on one side of the upper end of the mobile terminal 100 is divided into a middle band and a high band frequency region among LTE multi input multiple output (MIMO) antennas for transmitting / Can be implemented.

The fourth antenna pattern provided on the other side of the upper end of the mobile terminal 100 may implement a frequency-domain antenna pattern for GPS, Bluetooth, and Wi-Fi.

Unlike the previous embodiment, the antenna pattern provided at the upper end of the mobile terminal 100 does not support a low frequency band, so that the antenna pattern can be mounted in a relatively narrow region.

The third antenna pattern serving as the LTE MIMO antenna in the middle-band and high-band regions may form a loop antenna type pattern on one side of the upper end of the mobile terminal 100. [

That is, the third antenna pattern may include a radiator on one side of the side metal frame 210 connected to one side of the upper end of the ground member 220 through the ground terminal 250. The third feeding part 263 may be connected to one side of the side metal frame 210.

The fourth radiator 213 may be electrically connected to the side metal frame 210 for tuning in the frequency domain. The fourth radiator 213 may be provided in a region between the ground member 220 and the upper surface of the upper surface of the side metal frame 210 and may be bent in the transverse direction in the mobile terminal 100.

The fourth radiator 213 may be branched from the third feeding part 263 of the metal frame 210 and bent in the direction of the third feeding part 263. [

The fourth antenna pattern serving as an antenna for GPS, Bluetooth, and Wi-Fi can form a loop antenna type and a branch type pattern on the other side of the upper end of the mobile terminal 100.

That is, the fourth antenna pattern may include a radiator on the other side of the side metal frame 210 connected to the other end of the ground member 220. The fourth power feeder 264 may be connected to one side of the side metal frame 210.

The fifth radiator 214 may be electrically connected to the side metal frame 210 for tuning in the frequency domain. The fifth radiator 214 may be provided in a region between the ground member 220 and one side of the upper left and right sides of the side metal frame 210 so as to be bent in the longitudinal direction in the mobile terminal 100.

The fifth radiator 214 may be branched from the fourth feeding part 264 of the metal frame 210 and bent in the direction of the fourth feeding part 264. [

5 is a schematic diagram showing the frequency domain of the mobile terminal 100 related to the present invention.

5, through the lower PIFA pattern of the mobile terminal 100 of FIG. 4, the slot type antenna pattern, and the upper two loop type antenna patterns of the mobile terminal 100, that is, It is possible to secure an antenna pattern in the band (VLB) / low-band (LB) frequency domain and a frequency domain in the middle-band (MB) / high-band (HB) domain.

FIG. 6 shows a mobile terminal 100 according to the present invention, excluding a rear case, and FIG. 7 shows a cross section taken along a line A-A 'in FIG.

The side metal frame 210 may form the side surface of the mobile terminal 100. The side metal frame 210 may cover the entire area except the slit 240, which is one of four sides of the upper, lower, left, and right sides of the mobile terminal 100.

Accordingly, the side metal frame 210 can be integrally molded and folded to form four corners, and can be joined to the inner frame of the mobile terminal 100 through a thermal fusion process. Therefore, the conventional NC process can be omitted, which is advantageous in cost reduction.

The side metal frame 210 may include a metal member.

The metal plate 283 can serve as the grounding member 220. That is, the grounding member 220 may include a metal plate 283.

The metal plate 283 is provided between the display unit 151 and the main substrate 281 provided on the back surface of the display unit 151 and can support the metal plate 283. The metal plate 283 can support not only the display unit 151 and the main board 281 but also the battery 191 (see FIG. 1B).

The side metal frame 210 may include a rib 2101 to be fixed to the frame of the mobile terminal 100. The rib 2101 may be electrically connected to the main substrate 281 through a C-clip 282 or a conductive gasket and may be connected to a metal plate located on the front surface of the main substrate 281.

8 is a rear perspective view of a mobile terminal 100 according to the present invention.

The slit 240 can be filled by the non-conductive injection member 241. [ The nonconductive injection member 241 may include a material such as polycarbonate or polyamide and may be formed by double injection molding into the side metal frame 210 of the metal.

The jack hole 242 may be formed at the center of the nonconductive injection member 241. That is, the region of the non-conductive injection member 241 can be formed with the subsequent jack hole 242, thereby minimizing the conspicuous segment region.

The foregoing detailed description should not be construed in all aspects as limiting and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: mobile terminal 210: side metal frame
2101: rib 211: first radiator
212: second radiator 213: fourth radiator
214: fifth radiator 220: grounding member
221: grounding member first side 222: grounding member second side
2231: ground member adjacent portion 2232: ground member separation portion
224: Slot 230: Third radiator
240: Slit 241: Non-conductive injection member
242: ear jack hole 250: ground terminal
251: first ground terminal 252: second ground terminal
261: First-class full-charge 262: Second-class full-
263: All of the third class 264: All of the fourth class
270: switch 281: main substrate
282: seed-clip / conductive gasket 283: metal plate
300: mobile terminal 310: side metal frame
311: Left side area of the lower side of the metal frame
312: Right side area of bottom metal frame
320: grounding member 330: segmented region

Claims

A side metal frame forming a side surface;
A first radiator constituting a part of the side metal frame;
A second radiator constituting another part of the side metal frame and having one end spaced apart from one end of the first radiator;
A ground member which is surrounded by the side metal frame and cuts out a corner area facing the second radiator;
A slot formed by one area of the second radiator and the cut-out area of the grounding member;
A first power feeder for supplying power to the first radiator; And
And a second power feeder for supplying power to the second radiator.

The method according to claim 1,
A first ground terminal connecting the other end of the first radiator to the ground member; And
And a second ground terminal for connecting the other end of the second radiator to the grounding member at one end of the slot.

The method according to claim 1,
Further comprising a slit formed between one end of the first radiator and one end of the second radiator,
The side metal frame may include:
And includes an integral metal member,
Forming a side surface of the mobile terminal excluding the slit,
And a bent shape corresponding to four corner areas of the mobile terminal.

The method according to claim 1,
Wherein the first radiator and the second radiator form a part of each of the one side surface of the mobile terminal and the side surface of the mobile terminal.

The method according to claim 1,
Wherein each of the first radiator and the second radiator includes an " a " shape.

The method according to claim 1,
Further comprising a slit formed between one end of the first radiator and one end of the second radiator,
And the slit is biased toward the second radiator.

The method according to claim 1,
And a third radiator extending to the first radiator.

8. The method of claim 7,
And the third radiator includes a region branched from one end of the first radiator and bent in a direction toward the first feeder.

The method according to claim 1,
The second feed portion may include:
Wherein the second radiator is provided at one point in one region of the second radiator.

The method according to claim 1,
Further comprising a slit formed between one end of the first radiator and one end of the second radiator,
And a non-conductive injection member filled in the slit.

11. The method of claim 10,
And an ear jack hole formed at the center of the injection member.

The method according to claim 1,
A display unit provided on a front surface of the mobile terminal; And
Further comprising a main board provided on a back surface of the display unit,
The grounding member
And a metal plate provided between the display unit and the main board.

The method according to claim 1,
And a switch provided at one point of the first radiator to adjust an amount of current flowing to the ground member.