TWI530107B - Antenna device and mobile terminal having the same - Google Patents

Description

Antenna device and mobile terminal having the same

The present invention relates to a mobile terminal, and more particularly to a mobile terminal having an antenna device capable of transmitting and receiving (transmitting and receiving) radio signals.

A mobile terminal is a device that can be carried around and has one or more functions such as performing voice and video call communication, inputting and outputting information, storing data, and the like.

As the functions of mobile terminals become more diverse, mobile terminals can support more complex functions such as shooting images or video, copying music or video files, playing games, receiving broadcast signals, and the like. By implementing this function comprehensively and collectively, the mobile terminal can be implemented in the form of a multimedia player or device.

Various attempts have been made to implement complex functions by hardware or software in such multimedia devices. For example, a user interface (UI) environment is provided in the mobile terminal to enable the user to easily and conveniently find or select a desired function.

In addition to these various attempts, various designs for improving hardware functions and the like can be considered. Various designs include structural changes and improvements to increase user convenience. For structural changes and improvements, antenna devices for transmitting and receiving wireless electromagnetic waves can be considered.

An antenna is a device that is configured to transmit and receive wireless electromagnetic waves for wireless communication, which is absolutely required for mobile terminals. Since mobile terminals are provided with various functions such as WiBro and DMB instead of voice calls, the antenna should be configured to achieve a bandwidth that satisfies this function and should be designed to be small.

In order to meet this demand, antennas capable of realizing multiple frequency bands are being designed. However, such an antenna has a complicated structure, and it is difficult to independently control parameter values, which determine the antenna Features such as resonant frequency, bandwidth and gain. In order to solve such a problem, an antenna device having a new structure is being actively developed.

The connection structure is implemented in a separate manner, the connection structure being configured to electrically connect a common electrode of a liquid crystal display (LCD) device to an electrode of the touch sensor. This may lead to difficulties in miniaturizing mobile terminals.

Therefore, an aspect of the detailed description is to provide a mobile terminal having an antenna device capable of transmitting and receiving (transceiving) wireless electromagnetic waves in a plurality of bands.

In order to achieve these and other advantages and in accordance with the purpose of the present specification, as specifically and broadly described herein, there is provided an antenna apparatus comprising: a first member and a second member, the one having an open opening and a a slot of the closed connection portion; a feed portion having one end connected to one of the first member and the second member to cause the antenna device to resonate in a first frequency band and in the slot Forming an electric field; and a feed extension extending from the feed portion to cause the antenna device to resonate in a second frequency band.

According to an embodiment of the invention, the length of the slot may correspond to λ/4 or λ/8 of the wavelength of the intermediate frequency of the first frequency band, wherein the length of the slot is from the connection of the slot to The length of the opening.

According to an embodiment of the invention, the feeding portion may be separated from the connecting portion by a first distance, and the feeding extending portion may extend from the feeding portion by a second distance.

According to an embodiment of the invention, the first distance may be formed such that the impedance of the intermediate frequency of the first frequency band is within 50 ohms via the feed portion, and the second distance may be formed via the feed extension The impedance of the intermediate frequency of the second frequency band is within 50 ohms.

According to an embodiment of the invention, the feed portion may comprise a shunt element.

According to an embodiment of the invention, the feed extension may comprise a series element.

According to an embodiment of the invention, the feed extension may be formed on one of the first member and the second member.

According to an embodiment of the invention, at least a portion of the feed extension may be separate from one of the first member and the second member and may be parallel to one of the first member and the second member extend.

According to an embodiment of the invention, the antenna device may further include: a third member extending from the one of the first member and the second member by a predetermined length to cause the antenna device to be in the second frequency band The intermediate frequency resonates at a third frequency adjacent to the intermediate frequency, and the third member is configured to extend the bandwidth of the second frequency band.

In order to achieve these and other advantages and in accordance with the purpose of the present specification, as specifically described broadly herein, there is also provided a mobile terminal comprising: a terminal body having an upper portion and a lower portion; and an antenna device disposed The upper portion or the lower portion of the terminal body and configured to transmit and receive a radio signal, wherein the antenna device includes: a first member and a second member, the interface having an open opening and a closing a slot of the connecting portion; a feeding portion having one end connected to one of the first member and the second member to cause the antenna device to resonate in a first frequency band and formed in the slot An electric field; and a feed extension extending from the feed portion to cause the antenna device to resonate in a second frequency band.

According to an embodiment of the present invention, the upper portion or the lower portion of the terminal body on which the antenna device is mounted may be formed to be thinner than other portions of the terminal body.

According to an embodiment of the invention, one of the first member and the second member may be a conductive frame mounted in the terminal body and configured to support the interior of the terminal body.

According to an embodiment of the invention, one of the first member and the second member may be a flexible printed circuit board (FPCB) mounted in the terminal body, and configured The signal generated by a user input unit is transmitted to a controller.

According to an embodiment of the invention, one of the first member and the second member may be a flexible printed circuit board (FPCB) mounted in the terminal body, and configured to transmit a self-contained The input and output signals from one slot of the external device are connected to a controller.

According to an embodiment of the invention, one of the first member and the second member may be a conductive shell constituting an exterior of the terminal body.

According to an embodiment of the invention, one of the first member and the second member may be a multilayer printed circuit board having a ground.

According to an embodiment of the invention, the mobile terminal device may further include a conductive shell constituting an outer surface of the terminal body, and an opening communicating with the slot may be formed on the conductive shell.

According to an embodiment of the invention, the conductive shell may include a first conductive shell and a second conductive shell, and the first conductive shell may be separated from the second conductive shell via the opening and the socket.

According to an embodiment of the invention, a third member may be formed in parallel with the first conductive shell, wherein the third member is separated from one of the first member and the second member to enable the second frequency band The bandwidth extends.

According to an embodiment of the invention, another antenna device may be provided to cover the antenna device, wherein the other antenna device is configured to transmit and receive a radio signal in a fourth frequency band.

The present invention can have the following advantages.

First, the antenna device can operate as a slot antenna and can have antenna efficiency in multiple frequency bands.

Second, since the slot of the antenna device is formed on the gap required for the mobile terminal due to the margin (tolerance), the internal space of the mobile terminal can be utilized in a more efficient manner.

Third, although the antenna device is located adjacent to the conductive shell, the first conductive shell is separated from the second conductive shell. With this configuration, electromagnetic interference to the antenna device can be reduced, and thus it is possible to prevent the performance of the antenna device from being lowered.

Fourth, since user contact that may cause interference to the antenna device is performed only on the second conductive case, this can reduce the performance degradation of the antenna device due to human body effects.

Further scope of applicability of the present invention will become more apparent from the detailed description given below. It should be understood, however, that the description, and the particular embodiments of the invention Various changes and modifications may be made without departing from the scope of the invention.

100, 200‧‧‧ mobile terminal

110‧‧‧Wireless communication unit

111‧‧‧Broadcast receiving module

112‧‧‧Mobile communication module

113‧‧‧Wireless network module

114‧‧‧Short communication module

115‧‧‧Location Information Module

120‧‧‧Audio/Video (A/V) input unit

121‧‧‧ camera

122‧‧‧Microphone

130, 217‧‧‧ user input unit

140‧‧‧Sensor unit

141‧‧‧ proximity sensor

150‧‧‧Output module

151, 210‧‧‧ display unit

152‧‧‧ audio output module

153‧‧‧Alarm unit

154‧‧‧ haptic module

160‧‧‧ memory

170, 215‧‧ interface unit

180‧‧‧ Controller

181‧‧‧Multimedia module

190‧‧‧Power supply unit

201‧‧‧ front shell

202, 202’‧‧‧ Back shell

202a‧‧‧First conductive shell

202b‧‧‧Second conductive shell

203‧‧‧ battery cover

204‧‧‧ Terminal body

210a‧‧‧Window

210b‧‧‧ display module

211‧‧‧First audio output unit

213‧‧‧Optical input unit

214‧‧‧ side key

216‧‧‧ front camera

219‧‧‧ slots

221‧‧‧ rear camera

222‧‧‧flash

240‧‧‧Power supply unit/battery

250, 1250‧‧‧ circuit board

251‧‧‧Transceiver circuit

252‧‧‧ coaxial cable

31, 310, 410, 510, 610, 710, 810, 910, 1110, 1110', 1210, 1310, 1410, 1510‧ ‧ the first component

32, 320, 420, 520, 620, 720, 820, 920, 1120, 1120', 1220, 1320, 1420, 1520‧‧‧ second component

33, 330, 430, 530, 630, 730, 830, 930, 1130, 1130', 1230, 1330, 1430, 1530 ‧ ‧ feeder

36, 360, 460, 560, 660, 760, 860, 960, 1160, 1160', 1260, 1460, 1560 ‧ ‧ feed extension

30‧‧‧Slot antenna

34‧‧‧Close side

35‧‧‧Open end

300‧‧‧Antenna device

310'''‧‧‧ Electronic devices

340, 1140'‧‧‧ connectors

350, 750, 850, 950, 202c‧‧‧ openings

370, 770, 870, 1370, 1570‧‧‧ third component

740, 840‧‧‧ Connections

1200'‧‧‧ first antenna device

1280, 1310'‧‧‧ fourth member

1280', 1280", 1581‧‧‧ conductive patterns

1285’, 1285”, 1585‧‧

1290, 1330'‧‧‧second power feeder

1320’‧‧‧ fifth component

1360‧‧‧First Feed Extension

1360’‧‧‧Second Feed Extension

1531, 1582‧‧ Matching Department

1580‧‧‧second antenna device

1583‧‧‧Feeder connector

The accompanying drawings, which are set forth in the claims

1 is a block diagram of a mobile terminal according to an embodiment of the present invention; FIG. 2 is a front perspective view of a mobile terminal according to an embodiment of the present invention; and FIG. 3 is an action of FIG. FIG. 4 is an exploded perspective view of FIG. 3; FIGS. 5A and 5B are conceptual views showing an antenna device according to a comparative embodiment of the present invention, and FIG. 5C is a view showing an antenna device according to a preferred embodiment of the present invention; Conceptual view of an antenna device; FIG. 6A is a conceptual diagram showing an antenna device of a mobile terminal according to a first embodiment of the present invention; FIG. 6B is a conceptual diagram showing an example of an antenna device to which a stub has been added to FIG. 6A 6C is a cross-sectional view taken along line IV-IV of FIG. 3, showing the mobile terminal having the antenna device shown in FIG. 6A; and FIG. 6D is an antenna device showing FIGS. 6A and 6B. Schematic diagram of voltage standing wave ratio (VSWR); FIGS. 7A to 7F are schematic views showing a modified embodiment of the antenna device of FIG. 6A; FIGS. 8A and 8B are diagrams showing a second embodiment according to the present invention; Conceptual diagram of the antenna device of the mobile terminal; Figure 9A to 9C is a conceptual diagram showing an antenna apparatus of a mobile terminal according to a third embodiment of the present invention and an antenna apparatus according to a comparative embodiment; 10 is a conceptual diagram showing an antenna apparatus of a mobile terminal according to a fourth embodiment of the present invention; and FIG. 11 is a conceptual diagram showing an antenna apparatus of a mobile terminal according to a fifth embodiment of the present invention; Fig. 12B is a perspective view showing an antenna apparatus according to a sixth embodiment of the present invention; Fig. 12B is a perspective view showing the antenna apparatus of Fig. 12A; and Fig. 12C is a side sectional view showing the antenna apparatus of Fig. 12B.

An antenna device according to the present invention and a mobile terminal having the same will be explained in more detail below with reference to the accompanying drawings. The suffixes "module" and "unit or portion" of the components used are merely provided in the following description, and are only intended to prepare the present specification, and thus do not give a specific meaning or function. For the sake of brief description with reference to the drawings, the same or equivalent elements will be provided with the same reference numerals, and the description thereof will not be repeated. The singular expression includes the plural expression, which does not have any significantly different meaning in view of the context.

The mobile terminal according to the present invention may include a mobile phone, a smart phone, a notebook computer, a digital broadcast terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, and the like. However, it will be apparent to those skilled in the art that the present invention is also applicable to fixed terminals such as digital TVs and desktop computers.

The mobile terminal 100 can include components such as a wireless communication unit 110, an audio/video (A/V) input unit 120, a user input unit 130, a sensing unit 140, an output module 150, a memory 160, an interface unit 170, The controller 180, the power supply unit 190, and the like. Figure 1 is a diagram showing a mobile terminal 100 having various components, but it will be understood that implementing all of the illustrated components is not required. More or fewer components can be implemented alternatively.

Each element will be described in turn below.

The wireless communication unit 110 may generally include one or more components that permit wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network, wherein the mobile terminal 100 is located in the network Inside. For example, the wireless communication unit 110 The broadcast receiving module 111, the mobile communication module 112, the wireless network module 113, the short-range communication module 114, the location information module 115, and the like may be included.

The broadcast receiving module 111 receives broadcast signals and/or broadcast associated information from an external broadcast management server (or other network entity) via a broadcast channel.

The broadcast channel can include satellite channels and/or terrestrial channels. The broadcast management server may be a server that generates and transmits broadcast signals and/or broadcasts related information, or a server that receives previously generated broadcast signals and/or broadcast related information and transmits them to the terminal. Broadcast related information may refer to information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a material broadcast signal, and the like. Further, the broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal.

The broadcast related information may also be provided via a mobile communication network, in which case the broadcast related information may be received via the mobile communication module 112.

The broadcast signal can exist in various forms. For example, it can be digital multimedia broadcasting (DMB) electronic program guide (EPG), digital video broadcast-handheld (DVB-H) electronic service guide (electronic service) The form of guide, ESG, etc. exists.

The broadcast receiving module 111 can be configured to receive signal broadcasts via using various types of broadcast systems. In particular, the broadcast receiving module 111 can be called via a digital broadcast system such as digital multimedia broadcast-terrestrial (DMB-T), digital multimedia broadcast-satellite (DMB-S), digital video broadcast-handheld (DVB-H), It is a digital broadcast for the media forward link only (MediaFLO ^® ) data broadcasting system, integrated services digital broadcast-terrestrial (ISDB-T), and the like. The broadcast receiving module 111 can be configured to be suitable for each broadcast system that provides broadcast signals as well as the above-described digital broadcast system.

The broadcast signal and/or broadcast related information received via the broadcast receiving module 111 can be stored in the memory 160.

The mobile communication module 112 transmits/receives wireless signals to/from at least one of a network entity (e.g., a base station, an external terminal, a server, etc.) on the mobile communication network. This The wireless signal may include an audio call signal, a video call signal, or various forms of data according to the transmitted/received text/multimedia information.

The wireless network module 113 supports wireless network access of the mobile terminal. The module can be connected to the mobile terminal 100 internally or externally. Examples of such wireless network access may include wireless LAN (WLAN) (Wi-Fi), Wireless Broadband (Wibro), Worldwide Interoperability for Microwave Access (Wimax), and high speed downlink packet connection. High Speed Downlink Packet Access (HSDPA), etc.

The short-range communication module 114 represents a module for short-range communication. Techniques suitable for implementing the module may include BLUETOOTH, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra-Wide Band (UWB), and group bees ( ZigBee) and so on.

The location information module 115 represents a module for sensing or calculating the location of the mobile terminal. An example of the location information module 115 may include a Global Position System (GPS) module.

Referring to Figure 1, the A/V input unit 120 is configured to receive audio or video signals. The A/V input unit 120 may include a camera 121, a microphone 122, and the like. The camera 121 processes image images captured by the image sensor such as still images or motion pictures in a video call mode or an image capturing mode. The processed image screen can be displayed on the display unit 151.

The image screen processed by the camera 121 may be stored in the memory 160 or transmitted to the outside via the wireless communication unit 110. Two or more cameras 121 may be provided according to the structure of the mobile terminal.

The microphone 122 can receive sound (sound data) via a microphone in a telephone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio material. In the case of a telephone call mode, the processed audio (sound) data can be converted to an output form that is transmitted via the mobile communication module 112 to the mobile communication base station. The microphone 122 can implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated when receiving and transmitting audio signals.

The user input unit 130 can generate input data to allow the user to control various operations of the mobile communication terminal. The user input unit 130 can include a keyboard and a shrapnel A touch pad (for example, a touch sensing member for detecting a change in resistance, pressure, capacitance, or the like due to contact), a wheel, a jog switch, or the like.

The sensing unit 140 detects the current state (or state) of the mobile terminal 100 such as the open or closed state of the mobile terminal 100, the location of the mobile terminal 100, and the user of the mobile terminal 100 (eg, touch input) The presence or absence, the positioning of the mobile terminal 100, the acceleration or deceleration motion and direction of the mobile terminal 100, and the like, and the generation of instructions or signals to control the operation of the mobile terminal 100. For example, when the mobile terminal 100 is implemented as a slide-type mobile phone, the sensing unit 140 can sense whether the slide-type phone is on or off. Further, the sensing unit 140 may detect whether the power supply unit 190 supplies power or whether the interface unit 170 is connected to an external device. The sensing unit 140 may include a proximity sensor 141.

Output unit 150 is configured to provide an output in a visual, audible, and/or tactile manner. The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, a haptic module 154, and the like.

The display unit 151 can display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in the phone call mode, the display unit 151 can display a user interface (UI) or a graphical user interface (GUI) related to the call. When the mobile terminal 100 is in the video call mode or the image capturing mode, the display unit 151 can display the captured image and/or the received image, or the UI or GUI.

The display unit 151 may include at least one of a liquid crystal display (LCD), a thin film transistor-LCD (TFT-LCD), an organic light emitting diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like.

Some of these displays can be configured to be transparent so that the outside can be seen via the display, which can be considered a transparent display. A typical example of the transparent display may include a Transperant Organic Light Emitting Diode (TOLED) or the like. The rear surface portion of the display unit 151 can also be implemented to be optically transparent. Under this configuration, the user can view the object located on the rear side of the main body via the area occupied by the display unit 151 of the main body.

The display unit 151 can be implemented in two or more in number according to the structural aspects of the mobile terminal device 100. For example, a plurality of displays may be arranged integrally or individually on one surface or may be arranged on different surfaces.

Here, if the display unit 151 and the touch sensing sensor (referred to as a touch sensor) have a layer structure therebetween, the structure may be regarded as a touch screen (referred to as a "touch screen"). The display unit 151 can be used as an input device instead of an output device. The touch sensor can be implemented as a touch film, a touch pad, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display unit 151 or a change in capacitance generated from a specific portion of the display unit 151 into an electronic input signal. Additionally, the touch sensor can be configured to sense not only the touch location and the touch area, but also the touch pressure.

When the touch input is sensed via the touch sensor, the corresponding signal is transmitted to the touch controller (not shown). The touch controller processes the received signal and then transmits the corresponding data to the controller 180. Therefore, the controller 180 can sense the area of the touched display unit 151.

Referring to Fig. 1, the proximity sensor 141 may be arranged in an internal area of a mobile terminal that is blocked by a touch screen, or in the vicinity of a touch screen. The proximity sensor 141 represents a sensor that senses the presence or absence of an object approaching the sensing surface or an object located near the sensing surface via the use of an electromagnetic field or infrared light without mechanical contact. The proximity sensor 141 has a longer life and a more enhanced utility than the contact sensor.

The proximity sensor 141 may include a transmissive photodetector, a direct reflection photoinductor, a specular reflection photoinductor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, and a magnetic proximity sensing. , infrared proximity sensor, etc. When the touch screen is implemented as a capacitive type, the pointer is sensed to approach the touch screen via a change in the electromagnetic field. In this case, the touch screen (touch sensor) can be classified as a proximity sensor.

Hereinafter, for the sake of brevity, the state in which the pointer is located on the proximity touch screen in the case of no contact will be regarded as "proximity touch", and the state in which the pointer substantially touches the touch screen will be regarded as " Contact touch. For a position corresponding to a proximity touch of the pointer on the touch screen, the position corresponds to a position where the pointer vertically faces the touch screen when the pointer is approaching the touch.

The proximity sensor 141 senses a proximity touch, and a pattern of proximity touch (eg, distance, direction, speed, time, position, movement state, etc.). Information related to the sensed proximity touch and the sensed proximity touch pattern can be output on the touch screen.

The audio output module 152 can convert and output the sound audio data received as the self-communication unit 110 or stored in the memory 160 in the call signal receiving mode, the call mode, the recording mode, the voice recognition mode, the broadcast receiving mode, and the like. In addition, the audio output module 152 can provide an audible output associated with a particular function performed via the mobile terminal 100 (eg, a call signal receiving sound, information receiving sound, etc.). The audio output module 152 can include a microphone, a buzzer, and the like.

The alarm unit 153 can provide an output to notify the occurrence of an event of the mobile terminal 100. Typical events may include call reception, information reception, key signal input, touch input, and the like. In addition to the audio or video output, the alert unit 153 can provide an output in a different manner to notify of the occurrence of the event. The video signal or the audio signal can be output via the display unit 151 or the audio output module 152. Therefore, the display unit 151 or the audio output module 152 can be classified as a part of the alarm unit 153.

The haptic module 154 produces various tactile effects that the user can feel. A typical example of the haptic effect generated via the haptic module 154 includes vibration. The vibration generated via the haptic module 154 can have a controllable intensity, a controllable mode, and the like. For example, different vibrations can be output in a synthetic or sequential manner.

The haptic module 154 can produce various haptic effects including not only vibration, but also an arrangement of vertical movement of the pins relative to the touch (contact) skin, air injection force or air suction through the injection holes or suction holes, touch through the skin surface There is contact with the electrode or there is no contact with the electrode, effects via stimuli such as electrostatic force, use of a heat absorbing device or a heat generating device to replicate cold or heat sensation, and the like.

The haptic module 154 can be configured to transmit a haptic effect (signal) via direct contact with the user, or using the muscles of the user of the finger or hand. The haptic module 154 can be implemented in two or more in number according to the structure of the mobile terminal device 100.

The memory 160 can store programs to process and control the controller 180. Alternatively, the memory 160 may temporarily store input/output data (eg, phone book data, information, still images, video, etc.). In addition, when a touch input is made on the touch screen, the memory 160 can store data related to various modes of vibration and audio output.

The memory 160 can be implemented using any type of suitable storage medium including a flash memory type, a hard disk type, a multimedia card mini, a memory card type (for example, SD). Or DX memory), random access memory (RAM), static random access memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable only Read memory (PROM), magnetic memory, magnetic disk, optical disk, etc. In addition, the mobile terminal 100 can operate a network storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 can generally be implemented to connect a mobile terminal to an external device. The interface unit 170 may allow receiving material from an external device, transmitting power to each of the components in the mobile terminal 100, or transmitting data from the mobile terminal 100 to an external device. The interface unit 170 may include, for example, a wired/wireless headset, an external charger, a wired/wireless data cartridge, a memory card, a device for connecting a device having an identification module, and an audio input/output (I). /O) 埠, video I / O 埠, headset 埠 and so on.

The identification module can be configured as a chip to store various information required to verify the permission to use the mobile terminal 100, which can include a User Identity Module (UIM) and a Subscriber Identity Module (Subscriber Identity Module). , SIM), Universal Subscriber Identity Module (USIM), etc. Further, a device having an identification module (hereinafter referred to as "identification device") can be realized in the form of a smart card. Therefore, the identification device can be connected to the mobile terminal 100 via the UI.

In addition, when the mobile terminal 100 is connected to an external credle, the interface unit 170 can be used as a path for supplying power from the external support to the mobile terminal 100, or as various command signals input through the user from the stand to The path of the mobile terminal 100. These various command signals or power sources input from the cradle can operate as signals for identifying that the mobile terminal 100 has been accurately mounted to the cradle.

The controller 180 typically controls the overall operation of the mobile terminal 100. For example, the controller 180 performs control and processes related telephone calls, data communications, video calls, and the like. The controller 180 can include a multimedia module 181 that provides multimedia reproduction. The multimedia module 181 can be configured as part of the controller 180 or as a separate component.

The controller 180 can perform a pattern recognition process to recognize a write or draw input on the touch screen as a text or image.

The power supply unit 190 is for supplying power to each of the components via receiving an external power source or an internal power source under the control of the controller 180.

The various embodiments described herein can be implemented in a computer readable medium, such as using software, hardware, or some combination thereof.

For hardware implementations, the embodiments described herein may be in application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof. In some cases, such an embodiment is implemented via controller 180.

For software implementations, the implementations, such as procedures and functions, can be implemented with separate software modules, each of which performs at least one of the functions and operations. The software code can be implemented with a software application written in any suitable programming language. Further, the software code can be stored in the memory 160 and executed via the controller 180.

Fig. 2 is a front perspective view of the mobile terminal according to the present invention, and Fig. 3 is a rear perspective view of the mobile terminal of Fig. 2.

Referring to Figures 2 and 3, the mobile terminal 200 according to the present invention is provided with a strip type terminal body 204. However, the present invention is not limited thereto, but the present invention can be applied to a slide type in which two or more bodies are connected to each other to perform related actions, folding, swinging, and the like. In addition, the mobile terminal of the present invention can be applied to any portable electronic device having a camera and a flash, such as a portable telephone, a smart phone, a notebook computer, a digital broadcast terminal, a personal digital assistant (PDAs), and a portable type. Multimedia player (PMO), etc.

The mobile terminal 200 includes a terminal body 204, which constitutes its exterior.

The outer casing (casing, cover, cover, etc.) constituting the exterior of the terminal body 204 may include a front case 201, a rear case 202, and a battery cover 203 for covering the rear surface of the rear case 202.

The space formed by the front case 201 and the rear case 202 can accommodate various components therein. Such a shell may be formed by injection molding of a synthetic resin, or may be formed using a metal material such as stainless steel (STS) or titanium (Ti).

A display unit 210, a first audio output unit 211, a front camera 216, side keys 214, an interface unit 215, and a user input unit 217 may be placed on the front surface of the terminal body 204.

The display unit 210 includes a liquid crystal display (LCD) module, an organic light emitting diode (OLED) module, electronic paper, and the like, each for visually displaying information. The display unit 210 may include a touch sensing device that inputs information in a touch manner. Hereinafter, the display unit 210 including the touch sensing device is referred to as a "touch screen." When a portion of the touch screen 210 is touched, content corresponding to the touched position is input. The content input by touch can be a character, or a digit, or a menu item that can be set in each mode. The touch sensing device can be transmissive so that the display can be viewed, and can include structures for improving the visibility of the touch screen in bright places. Referring to FIG. 2, the touch screen 210 occupies most of the front surface of the front case 201.

The first audio output unit 211 can be implemented as a receiver to transmit the call sound to the user's ear or as a loudspeaker to output each type of alarm sound or multimedia replay sound.

The front camera 216 processes image images such as still images or motion pictures captured by the image sensor in a video call mode or a shooting mode. The processed image screen can be displayed on the display unit 210.

The image screen processed via the front camera 216 may be stored in the memory 160 or may be transmitted to the outside via the wireless communication unit 110. The front camera 216 can be implemented in two or more depending on the user interface.

The user input unit 217 is manipulated to receive an instruction for controlling the operation of the mobile terminal 200, and may include a plurality of input keys. The input key can be referred to as a manipulator and can include any type of input that can be manipulated in a user's tactile manner.

For example, the user input unit 217 can be implemented as a dome switch, or a touch screen, or a touch pad that inputs commands or information in a user push or touch manner. Alternatively, the user input unit 217 can be implemented as, for example, a wheel for rotating a button, a knob, or a joystick. The user input unit 217 is configured to input various commands such as START, END, and SCROLL.

The side key 214, the interface unit 215, the audio input unit 213, and the like are located on the side surface of the front case 201.

The side key 214 may be referred to as a "manipulation unit" and may be configured to receive instructions for controlling the operation of the mobile terminal 200. The side keys 214 can include any type of key. It can be manipulated in a user's tactile manner. The content input via the side key 214 can be different settings. For example, via the side key 214, an instruction such as controlling the front camera 216 and the rear camera 221, controlling the level of the sound output from the audio output unit 211, and converting the current mode of the display unit 210 into the touch recognition mode can be input.

The audio input unit 213 can be implemented as a microphone to receive a user's voice, other sounds, and the like.

The interface unit 215 is used as a path via which the mobile terminal 200 performs data exchange with an external device or the like. For example, the interface unit 215 may be a connection terminal through which the mobile terminal 200 is connected to the earphone using a cable or wireless, an area communication such as an Infrared Data Association (IrDA), a Bluetooth, a wireless LAN, and The power is supplied to at least one of the power supply terminals of the mobile terminal 200. The interface unit 215 can be a card slot to accommodate an external card such as a Subscriber Identity Module (SIM) card, a User Identity Module (UIM) card, or a memory card that stores information.

The power supply unit 240 and the rear camera 221 are located on the rear surface of the main body 204.

A flash 222 and a mirror (not shown) may be located proximate to the rear camera 221. When an object is photographed by using the rear camera 221, the flash 222 supplies light to the object.

When the user takes a picture of himself using the rear camera 221, the user can use the mirror to view itself.

The rear camera 221 can face a direction that is opposite to the direction facing the front camera 216 and can have different pixels than the front camera 216.

For example, the front camera 216 can be operated with relatively lower pixels (lower resolution). Therefore, the front camera 216 can be used when the user can take a face and send it to the other party during a video call or the like. On the other hand, the rear camera 221 can be operated with relatively high pixels (higher resolution) so that the user can use the rear camera 221 to obtain higher quality images for later use. The front camera 216 and the rear camera 221 may be mounted on the terminal body 204 for rotation or ejection.

The power supply unit 240 is configured to supply power to the mobile terminal 200. The power supply unit 240 may be installed in the terminal body 204 or may be separately mounted to the terminal body 204.

Fig. 4 is an exploded perspective view of Fig. 3.

Referring to FIG. 4, the mobile terminal includes a window 210a and a display module 210b, which constitute a display unit 210. The window 210a may be coupled to a surface of the front case 201.

A frame 320 configured to support the electronic device is formed between the front case 201 and the rear case 202. The frame 320 configured to support the inside of the mobile terminal supports one of the display module 210b, the rear camera 221, the antenna device 300, and the circuit board 250.

The frame 320 may be formed such that it is partially exposed to the outside. The frame 320 may constitute a part of the slide module that connects the main body portion and the display portion in a slide type mobile terminal rather than a strip mobile terminal.

Referring to FIG. 4, the circuit board 250 is positioned between the frame 320 and the rear case 202, and the display module 210b is coupled to a surface of the frame 320. The circuit board 250 and the battery are located on the other surface of the frame 320, and the battery cover 203 for covering the battery may be coupled to the rear case 202.

The window 210a is coupled to a surface of the front case 201. A touch sensor (not shown) can be mounted to the window 210a. The touch sensor is configured to sense a touch input and is comprised of a transmissive material. A touch sensor is mounted to the front surface of the window 210a and is configured to convert a voltage change or the like occurring on a particular portion of the window 210a into an electronic input signal.

The display module 210b is mounted to the rear surface of the window 210a. In this embodiment, the display module 210b is implemented as a thin film transistor liquid crystal display (TFT-LCD). However, the invention is not limited thereto.

For example, the display module 210b can be implemented as a liquid crystal display (LCD), an organic light emitting diode (OLED), a flexible display, a 3D display, or the like.

As described above, the circuit board 250 may be formed on one surface of the frame 320, but it may be mounted under the display module 210b. One or more electronic devices are mounted to the lower surface of the circuit board 250.

The battery housing for accommodating the battery 240 is recessed from the frame 320. A contact terminal that is connected to the circuit board 250 such that the battery 240 can supply power to the terminal body can be formed on one side surface of the battery housing.

The antenna device 300 may be formed at an upper end or a lower end of the mobile terminal. Alternatively, the antenna device 300 may be formed in plurality, and the plurality of antenna devices 300 may be located in motion respectively The upper and lower ends of the terminal. In this case, the antenna device 300 can be configured to transmit and receive (transceive) radio signals in different frequency bands.

The frame 320 may be composed of a high strength metal material, although its thickness is small. The frame 320 made of a metallic material can be operated to be grounded. That is, the circuit board 250 or the antenna device 300 may be grounded to the frame 320, and the frame 320 may operate as the ground of the circuit board 250 or the antenna device 300. In this case, the frame 320 can extend the ground of the mobile terminal.

The circuit board 250 is electrically connected to the antenna device 300 and is configured to process radio signals (or wireless electromagnetic waves) transmitted and received by the antenna device 300. In order to process the radio signals, a plurality of transceiver circuits 251 may be mounted to the circuit board 250.

The transceiver circuit 251 can include one or more integrated circuits and associated electronics. For example, the transceiver circuit may include a transmission integrated circuit, a receiving integrated circuit, a switching circuit, an amplifier, and the like.

Since a plurality of transceiver circuits are simultaneously fed to a conductive member as a radiator, the plurality of antenna devices can operate simultaneously. For example, when one of the transceiver circuits performs the transmission function, the other of them can perform the reception function. Alternatively, the two transceiver circuits can perform a transmitting function or a receiving function.

5A and 5B are conceptual views showing an antenna device according to a comparative embodiment of the present invention, and FIG. 5C is a conceptual view of an antenna device according to an embodiment of the present invention.

The antenna device according to the comparative embodiment is an antenna converted from a slot antenna configured to transmit and receive radio signals when resonating in a plurality of frequency bands. Generally, a slot antenna has a structure in which a slot is formed in a wall surface of a waveguide, a surface of a cylindrical conductor, or a planar conductor plate, and the slot is fed so that an electric field can be formed in the slot. In this configuration, the slot antenna operates as a radiator. Such universal slot antennas have been used to process radio signals in a single frequency band rather than in multiple frequency bands. The reason will be explained below with reference to Figs. 5A and 5B.

5A and 5B are respectively a first comparative embodiment and a second comparative embodiment of the present invention, which show a slot antenna 30 having an open end. The slot antenna 30 is configured to resonate in a low frequency band and has a shorter slot length (D) than a slot antenna having two closed sides due to the mirror effect. That is, the slot antenna with the open end can be in the same frequency band. Resonance, and has a length corresponding to about 1/2 of the length of the slot antenna having two closed sides.

In the case of a slot antenna having two closed sides, the slot has a length of λ/2 with a wavelength of an intermediate frequency with respect to the first frequency band to radiate radio waves in the first frequency band. In the case of a slot antenna having an open end, the slot has a length of λ/4 with respect to the wavelength of the intermediate frequency. That is to say, a slot antenna having an open end can have a minimum size because it can radiate radio waves corresponding to radio signals in a low frequency band and have slots of a shorter length.

Fig. 5A illustrates the relationship between impedance and current when the slot antenna 30 radiates radio waves in the first frequency band. Here, the broken line indicates the magnitude of the impedance, and the arrow indicates the current flowing along the slot.

The first member 31 and the second member 32 form a slot (S).

The length (D) of the slot (S) corresponds to λ/4 of the wavelength with respect to the intermediate frequency of the first frequency band. The impedance of the antenna device radiated by the radio waves has a value of about 377 ohms and impedance matching is performed at the open end 35 of the slot. Since the impedance matching of the antenna is performed at about 50 ohms, the feeding portion 33 is separated from the closing side 34 by a specified distance (D1).

Fig. 5B illustrates impedance and current when radio waves are radiated in the second frequency band via the antenna of Fig. 5A. The length (D) of the slot corresponds to λ/2 of the wavelength of the intermediate frequency of the second frequency band. The impedance of the antenna device radiated by the radio wave has a value of about 377 ohm, and impedance matching is performed at the central portion of the slot in the longitudinal direction.

Unless the power feeding portion 33 has a displacement, the position at which the power feeding portion 33 performs impedance matching in the first frequency band corresponds to a position of an impedance of about 300 ohms that can be realized in the second frequency band. Conversely, the impedance matching position (D2) in the second frequency band is separated from the closed portion of the slot by a prescribed length.

Therefore, if the position of the power feeding portion 33 is not changed, it is difficult to perform impedance matching to allow the slot antenna to have more efficiency than the prescribed value in the second frequency band.

That is, if the power feeding portion 33 is located in the first frequency band for impedance matching, it is difficult to perform impedance matching in the second frequency band. Therefore, the antenna performance that is satisfied in the second frequency band cannot be obtained.

In order to solve such a problem, an antenna device according to an embodiment of the present invention as shown in Fig. 5C is provided. Referring to FIG. 5C, the antenna device is provided with a feed extension 36 extending from the feed portion 33.

In the case where the slot antenna is operated in the second frequency band, the feed extension 36 extends from the feed portion 33 so that the impedance can be about 50 ohms. That is, in the case where the slot antenna is operated in the first frequency band, the power feeding portion 33 is moved to a position where the impedance is 50 ohms. In the case where the slot antenna is operated in the second frequency band, the feed extension extends from the feed portion 33 by a prescribed length (D3) so that the impedance can be 50 ohms.

The antenna device according to the present invention may have impedance matching so as to achieve antenna efficiency of more than a prescribed value in a plurality of frequency bands without using a balun or a diplexer .

6A is a conceptual diagram showing an antenna apparatus of a mobile terminal according to a first embodiment of the present invention, and FIG. 6B is a conceptual diagram showing an example in which a stub has been added to the antenna apparatus of FIG. 6A, and Fig. 6C is a view showing the voltage standing wave ratio (VSWR) of the antenna device of Figs. 6A and 6B.

As shown in FIG. 6A, the antenna device 300 includes a first member 310, a second member 320, a power feeding portion 330, and a feed extension portion 360.

Each of the first member 310 and the second member 320 may be configured as a conductive member, and the first member 310 and the second member 320 define a slot (S) of the antenna device 300. That is, the space between the first member 310 and the second member 320 serves as a slot (S) of the antenna device. The opening of the slot (S) is referred to as an opening 350. The closed portion of the slot (S) is referred to as a connector 340 due to the connection between the first member 310 and the second member 320.

The length from the opening 350 of the slot (S) to the connector 340 corresponds to λ/4 or λ/8 of the wavelength of the intermediate frequency of the first frequency band. The length of the slot (S) can be varied via the antenna feed method, the dielectric constant of the dielectric material of the antenna, or the addition of capacitance to the feed. For example, in the case where the antenna device is operated in the λ/4 resonance mode due to a change in the feeding method, the length of the slot may correspond to λ/4 of the intermediate frequency. For the antenna device 300 of a smaller size, the slot (S) may be curved, or the slot (S) may have a meandering structure.

For example, in the case where the first frequency band corresponds to the communication service bandwidth of the GSM 850, the slot (S) is formed to have a length of about 45 to 53 mm. In the first frequency band corresponding to LTE 700 In the case of a communication service bandwidth, the slot (S) is formed to have a length of about 50 to 60 mm. In view of the efficiency of the antenna device, the width of the slot (S) is required to be at least 0.003λ.

Each of the first member 310 and the second member 320 is composed only of a conductive material. In this embodiment, the first member 310 is implemented as a flexible printed circuit board having a ground end, and the second member 320 is implemented as a frame for supporting the interior of the mobile terminal.

The feeder 330 feeds the slot antenna so that the antenna device can resonate at a specific frequency. More specifically, one end of the power feeding portion 330 may be connected to a member of the slot so that the power feeding portion 330 may form an electric field in the slot (S).

The power feeding portion and the members may be connected to each other in whole or in part according to a feeding method.

According to the direct feeding method, the power feeding portion extending from the coaxial cable 252 (refer to FIG. 4) may extend from one member to the other member to pass through the slot (S). That is, according to the direct feeding method, one end of the feeding portion may be connected to one member, and the other end of the feeding portion may be extended to be connected to another member.

According to the coupling feeding method, one end of the feeding portion may be connected to one member, and the other end thereof may be separated from the other member.

Referring to FIG. 6A, the power feeding portion 330 extends from the second member 320 toward the first member 310. According to the coupling feeding method, one end of the feeding portion 330 is connected to the second member 320, and the other end of the feeding portion 330 is separated from the first member 310.

As shown in FIG. 5C, the power feeding portion 330 is separated from the connector 340 by a specified distance so that the impedance of the intermediate frequency of the first frequency band can be about 50 ohms via the power feeding portion 330. Feeder 330 can include a parallel component with capacitive or inductive implementation for impedance matching. The parallel element can control the resistance, which is the real part of the impedance. For example, the inductance can be controlled to have a high resistance, but the capacitance can be controlled to have a low resistance to perform impedance matching. The parallel element can be implemented as a lumped constant element on one end of the feed.

The feed extension 360 extends a predetermined distance from the feed portion 330 such that the impedance of the intermediate frequency of the second frequency band can be within 50 ohms via the feed extension 360 so that in the case where the antenna device includes the third member, The impedance of the intermediate frequency of the two bands can be within 50 ohms. The length of the feed extension 360 can be appropriately controlled to perform impedance matching, thereby enabling the antenna device 300 to operate efficiently. Feed extension 360 can include a series with capacitance or inductance Components for impedance matching. The series element can control the reactance, which is the imaginary part of the impedance. For example, the inductance can be controlled to have a high reactance, and the capacitance can be controlled to have a low reactance to perform impedance matching. The series element can be implemented as a lumped constant element on the partial feed extension 360. That is, the series capacitor can be located at one end of the feed extension, or the series inductance can be located at a portion of the feed extension.

Where parallel or series elements are included, the antenna device can have more enhanced performance by changing the length or shape of the slots.

For example, in the case where the shunt capacitance is located at the feed portion 330 and the series capacitor is located at the feed extension 360, the length of the slot may be formed to correspond to a wavelength of an intermediate frequency of about the first frequency band due to reduced resistance and reactance. λ/8. Due to the shortened length of the slot, the antenna device can be minimized.

The feed extension 360 can be coupled to a surface of the second member 320. The dielectric material can be located between the feed extension 360 and the second member 320. As the dielectric material, FR-3 and CEM-1 can be used. The FR-3 is made of a plurality of sheets of paper which have been impregnated with an epoxy resin binder, and CEM-1 is a composite material having a paper core impregnated with an epoxy resin. Alternatively, the dielectric material can be implemented as CEM-3, FR-4, FR-5 or Gl. CEM-3 impregnated with epoxy resin has a fiberglass fabric surface, as well as a core of non-woven, matte glass fibers. The FR-4 was built on a plurality of layers of epoxy resin impregnated glass fiber fabric. FR-5 was built on multiple layers of reinforced epoxy resin impregnated glass fiber fabric. Gl is built on a plurality of layers of polyimide film impregnated glass fiber fabric. Alternatively, the dielectric material can be implemented as a printed circuit board (PCB).

As shown in FIG. 6A, the feed extension 360 can be coupled to a surface of the second member 320. As shown in FIG. 5C, where the slot antenna is operating in the second frequency band, the feed extension 360 can extend from the feed portion 330 such that the impedance can be about 50 ohms.

However, as described below, in the case where the antenna device includes the third member, additional resonance occurs from the third frequency band, resulting in enhancement of impedance at the second frequency band. Thus, the feed extension can extend from the feed such that the impedance in the second frequency band can be approximately 150 ohms (see Figure 5C).

In the case where the intermediate frequency of the second frequency band is approximately 1900 MHz, the feed extension portion 360 extending from the power feeding portion may be formed to have a length of 8 to 13 mm. Feed extension of this length Portion 360 may be increased or decreased via electromagnetic interference from other components of the antenna device. An insulator or dielectric material may be located between the feed extension 360 and the second member 320.

Unlike the case where the above-described feed extension 360 is coupled to a surface of the second member 320, the feed extension 360 may be separated from the second member to extend parallel to the second member. This will be explained in the following examples shown in Figures 7B through 7D. If the feed extension is separated from the at least one component and thus extends parallel to the component, a capacitive coupling occurs between the feed extension and the component. Since this capacitive coupling changes the capacitance of the antenna device, the spacing between the feed extension and the components placed in parallel, or the length of the feed extension can be controlled to control the antenna characteristics. If the feed extension is formed such that capacitive coupling can occur, the length of the feed extension can be shorter than the length of the embodiment shown in Figure 6A.

Referring to FIG. 6B, the antenna device 300 may further include a third member 370, and the first member 310, the second member 320, the power feeding portion 330, and the feed extension portion 360.

Since the radiation in the second frequency band occurs at the central portion of the slot (S) rather than at the opening 350 of the slot (S), the antenna efficiency can be lowered in the second frequency band due to the peripheral device. Accordingly, the antenna device 300 may further include a third member 370 to resonate at a third frequency adjacent to the second frequency band. The third member 370 is a short post.

The third member 370 can be implemented as a conductive member and can extend from one of the first member 310 and the second member 320. For example, the third member 370 can extend from the first member 310. As shown in FIG. 6B, the third member 370 may be formed to have a prescribed length, which is partially curved in parallel with the first member 310. The third member 370 may be formed to have a length corresponding to λ/4 of the wavelength of the third frequency. The length of the third member 370, which is self-connected to one end of the other member, corresponds to the third frequency. When the third frequency is 2100 MHz, the length of the third member 370 is preferably about 20 to 25 mm. The length of the third member may increase or decrease during the antenna tuning process. For example, when an inductance used as a series element is added to a portion of the third member, the length of the third member can be shortened. If the length of the third member is shortened, interference with other antennas installed in the mobile terminal having a plurality of antennas can be reduced.

The upper diagram (REF 1) of Fig. 6D illustrates the voltage standing wave ratio (VSWR) of the frequency of the antenna device according to Fig. 6A. As shown, excellent antenna performance is implemented at the first frequency band even if the bandwidth is somewhat narrow. However, the voltage standing wave ratio (VSWR) at the second frequency band is about 8, which indicates that the antenna efficiency in the second frequency band is lower than the antenna efficiency in the first frequency band.

The lower diagram (REF 2) of Fig. 6D illustrates the voltage standing wave ratio (VSWR) of the frequency of the antenna device according to the third member shown in Fig. 6B.

Similar to the antenna device of FIG. 6B, the antenna device may further include a third member 370 to resonate at a third frequency adjacent to an intermediate frequency of the second frequency band. If the intermediate frequency of the second frequency band is approximately 1900 MHz, the third member 370 can be formed such that the third frequency can be approximately 2100 MHz. Under this configuration, as shown in the lower diagram (REF 2) of Fig. 6D, the antenna device additionally resonates at the third frequency. Therefore, in the high frequency band including the intermediate frequency of the second frequency band and the third frequency, the antenna device can form a wide bandwidth.

In the case where the antenna device further includes the third member 370, an additional resonance occurs in the third frequency band, thereby enhancing the impedance in the second frequency band. Thus, the feed extension 360 can extend from the feed to provide an impedance of about 150 ohms in the second frequency band. That is, the antenna device has an impedance matching limit. More specifically, preferably, the impedance is about 50 ohms in the second frequency band. However, even if the impedance in the second frequency band is about 150 ohms, the antenna device can achieve the specified antenna performance. Accordingly, the antenna device further includes a third member to have a limit of impedance matching of about 50 to 150 ohms in the second frequency band.

Fig. 6C is a cross-sectional view taken along line IV-IV of Fig. 3, showing the mobile terminal having the antenna device shown in Fig. 6A.

In a mobile terminal having a unipolar, PIFA or folded dipole antenna therein, the components of the antenna are separated from other electronic devices. The reason for this is to prevent a decrease in the efficiency of the antenna due to variations in electromagnetic characteristics due to the proximity of the electronic device placed on the antenna device. That is to say, the mobile terminal needs to provide an internal space of a prescribed volume to mount the antenna device therein. In the prior art, it is difficult to design a mobile terminal because the mobile terminal should have sufficient internal space to mount an antenna device therein.

However, in the present invention, the mobile terminal is provided with an antenna device 300 that is switched from the slot antenna. The antenna device 300 of the present invention has enhanced efficiency in a plurality of frequency bands. Further, even if the electronic device is located in the vicinity of the conductive member of the antenna device 300, the performance of the antenna device 300 is not lowered. The reason for this is because one of the components of the antenna device 300 operates as the ground of the mobile terminal. Another reason is that electromagnetic waves are radiated on the open side of the slot (S) in the case of a radio signal in the first frequency band. Under this configuration, the mobile terminal does not require an internal radiation space when compared to other types of antennas in accordance with a preferred embodiment of the present invention. therefore, The terminal body can be made thinner. Further, as shown in FIG. 6C, a mobile terminal having a special design in which the antenna mounting member is thinner than other components (for example, a display or a battery mounting member) can be implemented. That is, the mobile terminal can be configured to have a reduced thickness toward its upper or lower portion. As described above, the antenna device of the present invention can achieve sufficient antenna performance even if it is formed in a small space without being interfered by other electronic devices.

As shown in FIG. 6A, the first member 310 can include a socket 219 to which an external device is electrically connected. Even if the member defining the slot (S) includes other electronic connections, the antenna device can maintain performance exceeding a prescribed value. This allows the mobile terminal to be designed in a more free way. In addition, since the individual components can be integrated with each other, the mobile terminal can be further miniaturized.

The internal space of the mobile terminal according to the present invention can be utilized more efficiently. Referring to FIGS. 4 and 6A, the first member 310 is used to electrically connect the keys of the user input unit of the mobile terminal to the circuit board 250. The keys are arranged on one surface of the first member 310, and the display 210b is arranged on a surface of the second member 320. The key and display 210b are formed into a prescribed volume, and are formed such that a plurality of elements are combined with each other. In the case where a plurality of components are combined with each other, the components are required to have a space therebetween as a limit space because of assembly tolerances or dimensional tolerances.

In the longitudinal direction, the keys and display 210b can be separated from one another as tolerances (margins) between the components and cause the user to manipulate the display while viewing the display. In this configuration, the gap (G) is formed between the first member 310 and the second member 320 (refer to FIG. 6C).

In the present invention, such a gap is used as the slot (S) of the antenna device 300. That is, in the present invention, the slot (S) of the antenna device 300 is formed in the gap required in the mobile terminal due to the tolerance. Therefore, the internal space of the mobile terminal can be utilized in a more efficient manner.

Hereinafter, the same or similar structures as those of the aforementioned structures in FIGS. 7A to 11 will not be described, and only different structures will be described.

7A to 7F are schematic views showing a modified embodiment of the antenna device of Fig. 6A.

The antenna device of FIG. 7A includes a first member 410 and a second member 420. The first member 410 and the second member 420 form a slot (S) of the antenna device. The feed portion 430 is coupled to feed from the first member 410 toward the second member 420. The feed extension 460 is formed on the first member 410 and bent from a point to extend parallel to the second member 420. An extended end of the feed extension 460 is grounded to the second member 420. The feed extension 460 may be formed on a surface of one of the first member 410 and the second member 420 constituting the slot (S), or may extend parallel to one member. A portion of the feed extension 460 can be separated parallel to one member, and another portion of the feed extension 460 can be coupled to a surface of the other member.

This variant embodiment is advantageous in the case where it is difficult to form the feed extension 460 on the second member 420. In this embodiment, the antenna device can resonate in multiple frequency bands because of the feed extension 460. In addition, the antenna device can achieve antenna performance even in a high frequency band having a wide bandwidth.

The antenna device of FIG. 7B includes a first member 510 and a second member 520. The first member 510 and the second member 520 form a slot (S) of the antenna device. The feed portion 530 extends from the second member 520 toward the first member 510. The feed extension 560 is formed to have a prescribed length and is separated from the first member 510 and the second member 520 along the slot (S). One end of the feed extension 560 is grounded to the first member 510. This feeding method of forming the feed extension 560 between the first member 510 and the second member 520 increases the capacitance value of the antenna device. Because the capacitive input impedance is inversely proportional to the frequency, the resonant frequency of the antenna device is reduced. Therefore, such an embodiment is advantageous in the case where the antenna device is implemented in a low frequency band without increasing the length of the slot (S).

The antenna device of FIG. 7C includes a first member 610 and a second member 620. The first member 610 and the second member 620 form a slot (S) of the antenna device. The feed portion 630 extends from the first member 610 toward the second member 620. The feed extension 660 is formed to have a prescribed length and is separated from the first member 610 and the second member 620 along the slot (S).

One end of the feed extension 660 is grounded to the second member 620. This feeding method of forming the feed extension 660 between the first member 610 and the second member 620 increases the capacitance value of the antenna device. Since the capacitive input impedance is inversely proportional to the frequency, the resonant frequency of the antenna device is reduced. Therefore, such an embodiment is advantageous in the case where the antenna device is implemented in a low frequency band without increasing the length of the slot (S).

The antenna device of FIG. 7D includes a first member 710 and a second member 720. The first member 710 and the second member 720 form a slot (S) of the antenna device. The feed portion 730 extends from the first member 710 toward the second member 720. The feed extension 760 is bent from the feed portion 730, and A predetermined length is extended toward the opening 750. The feed extension 760 is separated from the first member 710 and the second member 720 along the slot (S). One end of the feed extension 760 is bent to be grounded to the second member 720.

A portion that is bent from the feed portion 730 so as to extend toward the connecting portion 740 may operate as a stud for the third member 770. Unlike the above embodiment, the third member 770 can extend between and be parallel to the first member 710 and the second member 720. With this configuration, the antenna device can be realized in a smaller area.

The antenna device of FIG. 7E includes a first member 810 and a second member 820. The first member 810 and the second member 820 form a slot (S) of the antenna device. The feed portion 830 extends from the first member 810 toward the second member 820. The feed extension 860 is bent from the feed portion 830 and extends a predetermined length toward the opening 850. The feed extension 860 is separated from the first member 810 and the second member 820 along the slot (S). One end of the feed extension 860 is bent to be grounded to the first member 810.

A portion that is bent from the feeding portion 830 so as to extend toward the connecting portion 840 may operate as a stud for the third member 870. One end of the third member 870 may be grounded to the second member 820.

Under this configuration, antenna devices that can be tuned to impedance matching conditions are changed to achieve more enhanced antenna performance.

The antenna device shown in FIG. 7F includes a first member 910 and a second member 920. The first member 910 and the second member 920 form a slot (S) of the antenna device on one side surface of the member (M). Such a component (M) can be an element of a mobile terminal, such as a circuit board or a frame. The feed portion 930 extends from the first member 910 toward the second member 920. The feed extension 960 is bent from the feed portion 930 toward the opening 950 and is formed to have a predetermined length. The feed extension 960 is separated from the first member 910 and the second member 920 along the slot (S). One end of the feed extension 960 may be bent to be grounded to the second member 920.

Unlike the above embodiment, the slot (S) is formed in the thickness direction of the member (M), not the width direction. The antenna devices can be arranged more freely in mobile terminals occupying a smaller space.

As shown, the antenna device may be formed on the side surfaces of the plurality of members (M).

8A and 8B are conceptual views showing an antenna apparatus of a mobile terminal according to a second embodiment of the present invention.

Referring to FIG. 8A, the antenna device includes a first member 1110 and a second member 1120. The first member 1110 and the second member 1120 are separated from each other, and a slot (S) is formed, one side of which is open. The first member 1110 is a part of a case constituting the exterior of the terminal body. The outer casing may be a conductive member constituting a side surface of the mobile terminal. The conductive member may be part of the front case 201 or the rear case 202.

The second member 1120 can be implemented as a frame to support the interior of the mobile terminal. Alternatively, the second member 1120 can be implemented as a flexible printed circuit board (FPCB) for transmitting signals generated from the user input unit to the controller, or for inputting and outputting from the slot 219. The signal is transmitted to the FPCB of the controller, and the slot 219 is installed in the terminal body and is connected to the external device.

The power feeding portion 1130 extends from the second member 1120 toward the first member 1110 to feed the slot (S). The feed extension 1160 extends from the feed unit 1130 by a predetermined length.

Referring to Fig. 8B, the antenna device includes a first member 1110' and a second member 1120'. The first member 1110' and the second member 1120' are separated from each other and form a slot (S) of the antenna device, the slot having an open side. As shown, the slot (S) extends from the connector 1140' to bend at a point. With this configuration, the length of the slot (S) can be extended in a smaller space, so that the antenna device can be freely designed. That is, an antenna device can be implemented in which the antenna device is capable of transmitting and receiving radio signals in a low frequency band in a limited space. Such an antenna device can be formed in plurality.

The first member 1110' is a part of a casing constituting the exterior of the terminal body. The case may be a conductive member constituting a side surface of the mobile terminal. The conductive member may be part of the front case 201 or the rear case 202.

The second member 1120' can be implemented as a frame to support the interior of the mobile terminal. Alternatively, the second member 1120' can be implemented as a flexible printed circuit board (FPCB) for transmitting signals generated from the user input unit to the controller, or for inputting and outputting from the slot 219. The signal is transmitted to the FPCB of the controller, and the slot is installed in the terminal body and connected to the external device.

The power feeding portion 1130' extends from the second member 1120' toward the first member 1110' to feed the slot (S). The feed extension 1160' extends a predetermined length from the feed portion 1130'.

As shown in Figs. 8A and 8B, since the conductive member constituting the exterior of the mobile terminal is used as a member of the antenna device, the mobile terminal can have an internal structure designed in a more compact manner.

9A to 9C are conceptual views showing an antenna apparatus of a mobile terminal according to a third embodiment of the present invention, and an antenna apparatus according to a comparative embodiment. In this embodiment, a plurality of antennas are formed. The first antenna device can operate as the aforementioned slot antenna, and the second antenna device can operate as a monopole antenna, a dipole antenna, or a PIFA type antenna.

As shown in Fig. 9A, the first member 1210 and the second member 1220 form a slot (S) of the antenna device. For example, the first member 1210 can be implemented as a flexible printed circuit board (FPCB) for transmitting signals generated from the user input unit to the controller. The second member 1220 can be implemented as a frame to support the interior of the mobile terminal.

The first antenna device is fed via a feed portion 1230 that is connected to the circuit board 1250 using a coaxial cable. The feed extension 1260 extends from the first feed 1230.

The fourth member 1280 implementing the second antenna device is fed such that radio signals in the fourth frequency band can be radiated. The fourth member 1280 can be implemented as a conductive shell that constitutes the exterior of the terminal body. The feed can be made via the second feed 1290, one end of which is connected to other coaxial cables that extend from the circuit board 1250 having the ground. In this configuration, the fourth member 1280 can operate as a monopole antenna or a dipole antenna.

The first antenna device and the second antenna device are placed close to each other and are each provided with a ground terminal independent of each other. That is, the ground end of the first antenna device is used as the second member 1220, and the ground end of the second antenna device is used as the circuit board 1250. With this configuration, the ground ends of the first antenna device and the second antenna device can operate independently of each other.

When the mobile terminal is provided with multiple antennas, there may be a problem that the antenna is isolated from the antenna. However, in the present embodiment, the first antenna device and the second antenna device are configured to have different radiation directions. That is, the first antenna device has a first radiation direction and the second antenna device has a second radiation direction that is perpendicular to the first radiation direction.

In a preferred embodiment of the present invention, even if a plurality of antenna devices operate as MIMO or a diversity system, the mobile terminal can reduce the first antenna device (send Mutual coupling between the side or receiving side main antenna) and the second antenna device (the sub-antenna of the receiving side of the MIMO or diversity system) and the envelope correction coefficient (envelope correction coefficien).

In the case where at least one of the plurality of antenna devices mounted on the mobile terminal is the slot antenna according to the present invention, the plurality of antenna devices can be implemented in a smaller space than the existing mobile terminal. That is, in the preferred embodiment of the present invention, the first antenna device operating as a slot antenna is placed close to the unipolar, dipole, or PIFA type in the frame portion of the mobile terminal. Second antenna device. Alternatively, as described below, the first antenna device and the second antenna device may be laminated to each other. Here, the frame portion indicates an internal space extending from the outside of the display unit to the terminal body of the casing of the mobile terminal.

Due to the characteristics of the slot antenna according to the preferred embodiment of the present invention, the frame area of the terminal body can be reduced. Therefore, it is possible to implement a mobile terminal having a plurality of antenna devices of a smaller size and a more compact structure.

Fig. 9B illustrates still another example in which a plurality of antenna devices are mounted to a mobile terminal. The first antenna device 1200' can operate as the slot antenna described above, and the second antenna device can operate as a monopole antenna, a dipole antenna, or a PIFA type antenna.

The second antenna device may include a carrier 1285' and a conductive pattern 1280' formed on a surface of the carrier 1285'.

The second device is disposed to cover a surface of the first antenna device 1200'. That is, the first antenna device and the second antenna device are laminated to each other.

Due to the laminated structure of the antenna device, various types of mechanical components inside the mobile terminal can be freely arranged, and the mobile terminal can be further miniaturized.

Since the first antenna device according to the invention is not disturbed by peripheral mechanical components, the mobile terminal can be designed in a free manner.

Fig. 9C shows an antenna device according to a comparative embodiment, in which each of the first antenna device and the second antenna device is implemented as a monopole antenna, a dipole antenna or a PIFA type antenna. Each of the first antenna device and the second antenna device may include a carrier 1285" and a conductive pattern 1280" formed on a surface of the carrier 1285".

Such an antenna device should be separated from the electronic devices 250 and 310'' because it is subject to interference from peripheral mechanical components. In the case of multiple antenna devices, each antenna device should be associated with electronics The device is separated. This may result in limitations of the internal space of the mobile terminal to which the antenna device is mounted. In addition, the design of the mobile terminal is limited by the antenna device, and it is difficult to miniaturize the mobile terminal.

Unlike the antenna device of Fig. 9C, the antenna device of Fig. 9B has almost no reduced antenna efficiency due to peripheral electronic devices. Therefore, the mobile terminal can be designed in a free manner.

Fig. 10 is a conceptual diagram showing an antenna apparatus of a mobile terminal according to a fourth embodiment of the present invention.

In the fourth embodiment, the mobile terminal is provided with a plurality of slot antennas. In the antenna device, the first slot (S) may be formed via the first member 1310 and the second member 1320, and the second slot (S') may be formed via the fourth member 1310' and the fifth member 1320'.

The third member 1370 can extend from one of the first member 1310, the second member 1320, the fourth member 1310', and the fifth member 1320'. The third member 1370 can operate as a device associated with impedance matching of the slot antenna and can operate as a device that causes resonance at another frequency.

The power feeding unit 1330 is formed in plurality. More specifically, the power feeding portion 1330 may include: a first power feeding portion 1330 for feeding a slot (S) formed through the first member 1310 and the second member 1320; and a second power feeding portion 1330' for A slot (S') formed by the fourth member 1310' and the fifth member 1320' is fed. The first feed portion 1330 is provided with a first feed extension 1360, and the second feed portion 1330' is provided with a second feed extension 1360'.

Feed extensions 1360 and 1360' extend from feeds 1330 and 1330' to perform impedance matching corresponding to the intermediate frequency of the high frequency band.

In this embodiment, the ground end of the first slot antenna serves as the first member 1310, and the ground end of the second slot antenna serves as the fourth member 1310'. Therefore, the ground ends of the respective antennas can be implemented independently of each other.

In a preferred embodiment of the present invention, even if a plurality of antenna devices operate as a MIMO or diversity system, the first slot antenna (the main antenna on the transmitting side or the receiving side) and the second slot antenna (the MIMO or diversity system) can be reduced. Mutual coupling between the sub-antennas on the receiving side and the wave seal correction factor.

Figure 11 is a conceptual diagram showing an antenna apparatus of a mobile terminal according to a fifth embodiment of the present invention.

The rear case 202' is provided with a slot (S), wherein the rear case 202' is covered by the battery cover 203 of the mobile terminal. Based on the slot (S), the upper portion of the rear case 202' serves as the first member 1410, and the lower portion of the rear case 202' serves as the second member 1420. In this embodiment, the rear case 202' is composed of a conductive material and is provided with a slot (S). Such a slot (S) can be filled with a dielectric material having a prescribed dielectric constant.

The feed portion 1430 extends from the second member 1420 toward the first member 1410, and the feed extension 1460 extends a predetermined length from the feed portion 1430.

In this embodiment, the terminal body may have a rear case 202' made of a conductive material as a slot antenna.

Since the rear case 202' constituting the exterior of the mobile terminal is used as a member of the antenna device, part of the antenna device is located at the edge of the terminal body. This can allow the internal structure of the mobile terminal to be designed in a more compact manner.

12A is a conceptual diagram showing an antenna apparatus of a mobile terminal according to a sixth embodiment of the present invention, wherein FIG. 12B is a perspective view of the antenna apparatus of FIG. 12A, and FIG. 12C is a side cross section of the antenna apparatus of FIG. 12B. Figure.

In a preferred embodiment of the invention, a conductive shell 202 of electrically conductive material may be provided to cover the side surfaces of the mobile terminal. The conductive shell 202 constitutes the exterior of the terminal body. If the appearance of the mobile terminal is formed via the conductive housing 202, the mobile terminal can maintain sufficient strength and small thickness and can have a special appearance. In the present embodiment, the rear case 202 is used as the conductive case 202. Alternatively, the front case 201 can be used as the conductive case 202.

The conductive shell 202 may include a first conductive shell 202a and a second conductive shell 202b. The first conductive shell 202a may be located at one side or upper end or lower end of the mobile terminal, and the second conductive shell 202b may be formed to cover a side surface of the mobile terminal instead of the first conductive shell 202a. If the antenna device is formed in plurality, the first conductive case 202a may be formed in plurality.

A dielectric material is formed between the first conductive shell 202a and the second conductive shell 202b. That is, in a state in which the dielectric material is located therebetween, the first conductive shell 202a and the second conductive shell 202b are separated from each other. In this configuration, the first conductive shell 202a is separated from the ground end of the mobile terminal, thereby being in an electromagnetic floating state. Therefore, even if the first member and the second member are included The first antenna device is located near the first conductive shell 202a, and electromagnetic interference to the first antenna device is lowered by the first conductive shell 202a, thereby preventing degradation of performance of the first antenna device.

Since the first conductive shell 202a and the second conductive shell 202b are separated from each other, the decrease in antenna characteristics can be reduced due to human body effects. Human body effects indicate changes in antenna characteristics that occur when a human body contacts or approaches a particular portion of a mobile terminal. For example, the phenomenon that the reception rate is lowered when the user's hand holds a specific portion of the mobile terminal can be regarded as a human effect. As shown in Fig. 12B, the first conductive shell 202a is located at the upper or lower end of the mobile terminal, and user contact that may interfere with the performance of the antenna device appears only in the second conductive shell 202b. Under this configuration, the performance degradation of the antenna device can be reduced due to human body effects.

The conductive case 202 is provided with an opening 202c that communicates with the slot (S) of the first antenna device. As previously mentioned, the opening 202c can be filled with a dielectric material. Under this configuration, the first conductive shell 202a and the second conductive shell 202b can be separated from each other via the opening 202c and the slot 219. Since the opening 202c is formed using the conductive shell 202, the open area of the first antenna device may extend upward to the outside of the terminal body.

As shown in FIG. 12A, the first antenna device and the second antenna device 1580 are laminated to each other. As an example, a second antenna device 1580 can be provided to cover the first antenna device. As previously mentioned, the first antenna device can include a first member 1510, a second member 1520, a feed portion 330, and a feed extension 360. The second antenna device 1580 can be implemented as a monopole antenna, a PIFA type antenna, or a folded dipole antenna.

As previously mentioned, the first member 1510 and the second member 1520 of the first antenna device may be implemented as a conductive member and may define a slot (S) of the antenna device. That is, the space between the first member 1510 and the second member 1520 serves as a slot (S) of the antenna device. The power feeding portion 1530 is formed such that the antenna device including the slot (S) can resonate in the first frequency band, and the feed extension portion 1560 is formed such that the antenna device can resonate in the second frequency band.

Resonance in the second frequency band is performed at the central portion of the slot (S) rather than at the opening 202c of the slot (S). This may result in a decrease in antenna efficiency in the second frequency band due to peripheral devices. Accordingly, the antenna device may further include a third member 1570 to resonate at a third frequency adjacent to the second frequency band. The third member 1570 operates as a short post. The third member 1570 is formed to be parallel to the first conductive shell 202a.

A matching portion 1531 configured to perform impedance matching in a specific frequency band may be formed between the power feeding portion 1530 and the power feeding extension portion 1560.

Referring to FIG. 12C, the carrier 1585 may be formed between the first antenna device (ANT 1) and the second antenna device (ANT 2, 1580). The radiator of the second antenna device 1580 can be implemented as a conductive pattern 1581 printed on the carrier 1585.

The carrier 1585 is a dielectric material having a dielectric constant, which can be implemented as FR-3 and CEM-1. FR-3 is made of a multi-ply paper that has been impregnated with an epoxy resin binder, and CEM-1 is a composite material having a paper core impregnated with an epoxy resin. Alternatively, vector 1585 can be implemented as CEM-3, FR-4, FR-5 or Gl. CEM-3 impregnated with epoxy resin has a fiberglass fabric surface, as well as a core of non-woven, matte glass fibers. FR-4 was built on a plurality of layers of epoxy resin impregnated glass fiber fabric. FR-5 was built on multiple layers of reinforced epoxy resin impregnated glass fiber fabric. Gl is built on a plurality of layers of polyimide film impregnated glass fiber fabric. Alternatively, carrier 1585 can be implemented as a printed circuit board (PCB).

The second antenna device 1580 is formed to transmit and receive (transceiver) signals in the fourth frequency band. The conductive pattern 1581 as a radiator may be formed to have an electrical length corresponding to the fourth frequency band.

The conductive pattern 1581 can be connected to the substrate to process the radio signal via the feed connector or the ground connector depending on the type of antenna. For example, in the case of a monopole antenna device, the conductive pattern 1581 can be fed via a feed connector and grounded. On the other hand, in the case of a PIFA type antenna device, the conductive pattern 1581 provided with the feed connector and the ground connector may be connected to the substrate.

The feed connector (F) may be configured to electrically connect the feed portion and the conductive member, and may be configured to feed the conductive member in an EM (electromagnetic) feed manner. To this end, the feed connector (F) may comprise at least one of a feed plate, a feed clamp and a feed line. Since one of the feed plate, the feed clamp, and the feed line is electrically connected to the other, the current (or voltage) supplied from the feed device is transmitted to the conductive member that transmits (transmits and receives) the radio signal. Here, the feed line may include a microstrip printed on the substrate.

The ground connector (G) may be configured to ground the conductive member and the ground and perform a circuit short to perform impedance matching with respect to the resonant frequency of the antenna device. The ground connector (G) can provide at least two paths of different lengths, and can be provided with each The switch corresponding to the path. The various paths connect the ground and the radiators (e.g., conductive members) to each other via their switches at different lengths. The path acts as an electrical pathway to connect the ground to the radiator, which may include at least one of a feed plate, a feed clamp, and a feed line. Since the feed lines are formed to different lengths, the paths can have different lengths.

Referring to FIG. 12A, a matching portion 1582 may be formed between the conductive pattern 1581 (radiator) and the feed connector 1583. The matching portion 1582 can be implemented as a series element or a parallel element. In the case where the matching portion 1582 is implemented as a series element, the reactance can be changed, which is an imaginary part of the impedance. For example, the inductance can be controlled to have a high reactance, and the capacitance can be controlled to have a low reactance, thereby changing the impedance in a specific frequency band. On the other hand, in the case where the matching portion 1582 is implemented as a parallel element, the resistance can be changed, which is a real part of the impedance. For example, the inductance can be controlled to have a high resistance, and the capacitance can be controlled to have a low resistance to change the impedance in a particular frequency band.

The mobile terminal can communicate with the wireless base station using radio communication. For example, mobile phones can communicate using 850 MHz, 900 MHz, 1800 MHz, and 1900 MHz mobile phone bands (eg, the primary global system for mobile communications or the GSM mobile phone band). Even in the 1.92~2.17GHz band, communication should be performed for wideband code division multiplexing access (WCDMA) access services. In addition, communication should be performed even in the band of 704 to 960 MHz for the B13 or B17 communication service of LTE (Long Term Evolution). In order to provide a mobile terminal in a plurality of frequency bands in accordance with a preferred embodiment of the present invention, the antenna device includes a slot (S), a power feeding portion, a feed extension portion, and the like.

The above embodiments and advantages are merely exemplary and are not to be considered as limiting. The present technology can be easily applied to other types of devices. This description is intended to be illustrative, and does not limit the scope of the claims. Many alternatives, modifications, and variations will be apparent to those skilled in the art. The features, structures, methods, and other characteristics of the exemplary embodiments described herein may be combined in various ways to obtain additional and/or alternative exemplary embodiments.

Since the present features can be implemented in several forms without departing from the characteristics thereof, it should be understood that the above-described embodiments are not limited by the details of the foregoing description, unless otherwise specified, but should be It is within the scope defined by the scope of the appended claims. Therefore, all changes and modifications that come within the scope and the scope of the invention are intended to be

100‧‧‧Mobile terminal

110‧‧‧Wireless communication unit

111‧‧‧Broadcast receiving module

112‧‧‧Mobile communication module

113‧‧‧Wireless network module

114‧‧‧Short communication module

115‧‧‧Location Information Module

120‧‧‧Audio/Video (A/V) input unit

121‧‧‧ camera

122‧‧‧Microphone

130‧‧‧User input unit

140‧‧‧Sensor unit

141‧‧‧ proximity sensor

150‧‧‧Output module

151‧‧‧Display unit

152‧‧‧ audio output module

153‧‧‧Alarm unit

154‧‧‧ haptic module

160‧‧‧ memory

170‧‧‧Interface unit

180‧‧‧ Controller

181‧‧‧Multimedia module

190‧‧‧Power supply unit

Claims (24)

An antenna device comprising: a first member and a second member, forming a slot having an open opening and a closed connecting portion; a feeding portion having a connection to the first member and the second One end of one of the members causes the antenna device to resonate in a first frequency band and forms an electric field in the slot; and a feed extension extending from the feed portion to cause the antenna device to be in the Resonance in the second frequency band, wherein at least a portion of the feed extension is separate from one of the first member and the second member and extends parallel to one of the first member and the second member. The antenna device according to claim 1, wherein the length of the slot corresponds to λ/4 or λ/8 of the wavelength of the intermediate frequency of the first frequency band, wherein the length of the slot is from the slot The length of the connecting portion to the opening portion. The antenna device according to claim 2, wherein the feeding portion is separated from the connecting portion by a first distance, and wherein the feeding extending portion extends a second distance from the feeding portion. The antenna device of claim 3, wherein the first distance is formed to cause an impedance of an intermediate frequency of the first frequency band to be within 50 ohms via the power feeding portion, and wherein the second distance is formed to pass through the feeding The electrical extension causes the impedance of the intermediate frequency of the second frequency band to be within 50 ohms. The antenna device of claim 4, wherein the feed portion comprises a parallel element. The antenna device of claim 4, wherein the feed extension comprises a series element. The antenna device of claim 1, wherein the feed extension is formed on one of the first member and the second member. The antenna device according to claim 1, further comprising: a third member extending from the one of the first member and the second member by a predetermined length to enable the The antenna device resonates at a third frequency adjacent to an intermediate frequency of the second frequency band, and the third member is configured to extend a bandwidth of the second frequency band. An action terminal comprising: a terminal body having an upper portion and a lower portion; and an antenna device disposed at the upper portion or the lower portion of the terminal body and configured to transmit and receive radio signals, wherein the antenna The device comprises: a first member and a second member, forming a slot having an open opening and a closed connecting portion; a feeding portion having a connection to the first member and the second member One end of the antenna device resonates in a first frequency band and forms an electric field in the slot; and a feed extension extending from the feed portion to cause the antenna device to be in a second frequency band Medium resonance, wherein at least a portion of the feed extension is separate from one of the first member and the second member and extends parallel to one of the first member and the second member. The mobile terminal according to claim 9, wherein the upper portion or the lower portion of the terminal body in which the antenna device is mounted is formed to be thinner than other portions of the terminal body. The mobile terminal according to claim 9, wherein one of the first member and the second member is a conductive frame mounted in the terminal body, and is configured to support the terminal body internal. The mobile terminal according to claim 9, wherein one of the first member and the second member is a flexible printed circuit board (FPCB) mounted in the terminal body, and is The configuration is to transmit a signal generated from a user input unit to a controller. The mobile terminal according to claim 9, wherein one of the first member and the second member is a flexible printed circuit board (FPCB) mounted in the terminal body, and is It is configured to transmit signals input and output from a slot connected to an external device to a controller. The mobile terminal according to claim 9, wherein one of the first member and the second member is a conductive case constituting an outer surface of the terminal body. The mobile terminal of claim 9, wherein one of the first member and the second member is a multilayer printed circuit board having a ground. The mobile terminal according to claim 9, wherein the length of the slot corresponds to λ/4 or λ/8 of the wavelength of the intermediate frequency of the first frequency band, wherein the length of the slot is from the slot The length of the connection portion of the hole to the opening portion. The mobile terminal according to claim 16, wherein the power feeding portion is separated from the connecting portion by a first distance, and wherein the power feeding portion extends a second distance from the power feeding portion. The mobile terminal according to claim 17, wherein the first distance is formed to make an impedance of an intermediate frequency of the first frequency band within 50 ohms via the power feeding portion, and wherein the second distance is formed to The feed extension causes the impedance of the intermediate frequency of the second frequency band to be within 50 ohms. The mobile terminal of claim 9, wherein the feed extension is formed on one of the first member and the second member. The mobile terminal device of claim 9, further comprising: a third member extending from the one of the first member and the second member by a predetermined length to cause the antenna device to A third frequency adjacent to the intermediate frequency of the two frequency bands resonates, and the third member is configured to extend the bandwidth of the second frequency band. The mobile terminal according to claim 9, further comprising a conductive case constituting an outer surface of the terminal body, and wherein an opening communicating with the slot is formed at the conductive case. The mobile terminal of claim 21, wherein the conductive case comprises a first conductive shell and a second conductive shell, and wherein the first conductive shell and the second are made via the opening and the socket The conductive shell is separated. The mobile terminal according to claim 22, wherein the third member is formed in parallel with the first conductive shell, wherein the third member is one of the first member and the second member The bandwidth of the second frequency band is extended. The mobile terminal according to claim 9, wherein another antenna device is provided to cover the antenna device, wherein the other antenna device is configured to transmit and receive a radio signal in a fourth frequency band.