KR101393131B1 - External antenna having multi-path and portable terminal using the same - Google Patents

Abstract

The present invention relates to a multipath external antenna that can be detachably connected to the outside of a portable terminal, and a portable terminal using the same.

According to the multipath external antenna and the portable terminal using the multipath external antenna according to the present invention, the external antenna can be detachably connected to the portable terminal to process signals of various frequency bands according to the frequency band of the external antenna, It is possible to solve the problem of difficulty in implementing a wide band or a multi-band due to the spatial restriction of the antenna, and the problem of deterioration of reception performance of the antenna.

Portable terminal, antenna, removable type

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-path external antenna and a mobile terminal using the multi-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna of a portable terminal, and more particularly, to an antenna detachably connected to the outside of a portable terminal and a portable terminal using the antenna.

The portable terminal for mobile communication has been lightweight and slim to allow the user to easily carry it, while the antenna mounted on the portable terminal requires a constant communication quality even in a small and limited device.

However, the importance of the design of such a portable terminal has been raised so as to satisfy the aesthetic desires of the consumers as well as the importance of the excellent function.

The antenna used in such a portable terminal has been developed as an external antenna protruding from the outside, but it has a disadvantage that it can hinder aesthetic appearance and be damaged by an external impact.

Therefore, in order to meet the aesthetic desire of the consumer who requires a slim design of the portable terminal and to prevent the antenna from being damaged due to an external impact, an internal antenna, which can be built in the portable terminal, Are being developed. The built-in antenna is also called an intenna.

Such built-in antennas not only have to be efficient in order to be suitable for the structure of a small electronic device but also how to reduce the size thereof is very important issue.

Planar Inverted-F Antenna (PIFA), a rectangular planar inverted-F antenna (PIFA) with a reduced radiation current path can be built inside electronic equipment, so that a sophisticated design can be designed have. Further, since the antenna is protected inside the case of the electronic device, it has an advantage that it is safe from external impact.

However, since the planar inverted-F antenna has to maintain a radiation efficiency higher than a certain level, miniaturization of the antenna is limited. In addition, the planar antenna has a limitation in improving the bandwidth because it is difficult to generate multiple resonances, and it is difficult to have characteristics of multiple bands.

In recent years, development of antennas capable of simultaneously receiving and transmitting low-frequency and high-frequency bands has been progressing actively. However, due to the coupling phenomena between the low-frequency and high-frequency bands, It is difficult to design a multi-band antenna.

In order to realize such multi-band, it is required to provide an antenna having a wide bandwidth characteristic. However, in order to realize the wideband characteristic, a space for installing an antenna inside the portable terminal must be secured, which increases the size of the portable terminal.

Further, as application fields of portable terminals have been diversified, antennas capable of communicating in various frequency bands have been demanded. However, since the conventional multi-band antenna has a limitation in its frequency band, it is difficult to secure the stable characteristics of wireless communication in various frequency bands, which makes it difficult to expand the application of the mobile terminal.

Disclosure of Invention Technical Problem [8] The present invention provides an antenna capable of stably processing signals of various frequency bands and detachably connected to the outside of a portable terminal, and a portable terminal using the same.

A multi-path external antenna according to an embodiment of the present invention for realizing the above-mentioned problems includes an antenna connector having a plurality of antenna terminals arranged to be spaced apart from each other, and a plurality of antenna terminals connected to any one of the plurality of antenna terminals, An antenna identification information providing unit connected to one of the plurality of antenna terminals and providing different antenna identification information according to a frequency band of the radiator; At least a portion of the connector, and a case surrounding the radiator and the antenna identification providing portion.

Accordingly, the multipath external antenna is detachably connected to the outside of the portable terminal and has an advantage of being able to process signals of various frequency bands according to the frequency band of the radiator provided therein, It is possible to provide information on the frequency band.

At least one of the width, the length, the diameter, and the cross-sectional area of each of the antenna terminals may be different from the frequency band of the radiator connected to the respective antenna terminals .

Accordingly, the multi-path external antenna can transmit and receive radio signals of various frequency bands by connecting radiators having different frequency bands to the respective antenna terminals, and by controlling the size of the antenna terminals, It is possible to easily implement the impedance matching of FIG.

The antenna identification information providing unit may include resistors having different resistance values according to a frequency band of the radiator.

Preferably, at least a part of the antenna connector is formed to protrude from an outer circumferential surface of the case.

According to another aspect of the present invention, there is provided a portable terminal including a body having an insertion port for inserting an external antenna, a terminal connector formed in the insertion port and having a plurality of terminal terminals spaced apart from each other, At least one wireless communication module connected to any one of the plurality of terminal terminals and receiving a radio signal of a predetermined frequency band through the external antenna, An antenna detector for detecting a frequency band of the external antenna connected to the terminal connector and a controller for controlling the operation of the wireless communication module according to the frequency band of the external antenna identified by the antenna detector .

Accordingly, the portable terminal can process signals of various frequency bands according to the frequency band of the removable external antenna. As a result, it is difficult to implement a wideband or multi-band due to the spatial restriction of the portable terminal, There is an advantage that it can be solved.

The portable terminal may further include a display module and an operation unit for receiving a user command for selecting an operation mode of the portable terminal, wherein the control unit controls the frequency band of the external antenna connected to the terminal connector, And outputs an error message to the display module when the input mode does not coincide with the inputted operation mode.

Accordingly, the user can confirm through the error message that the user has an error in the operation mode selected by the user or the attached external antenna.

According to the multi-path external antenna and the mobile terminal using the multi-path external antenna according to the present invention, the external antenna is detachably connected to the mobile terminal, so that signals of various frequency bands can be processed according to the frequency band of the external antenna Therefore, there is an advantage that it is difficult to implement a wide band or a multi-band due to the space limitation of the portable terminal, and the problem of deterioration of reception performance of the antenna can be solved.

According to another aspect of the present invention, there is provided a multipath external antenna and a portable terminal using the same, wherein the external antenna provides information on a frequency band of a radiator provided therein to the portable terminal, By providing information to the user through the display module about the matching of the operation mode selected by the user and the frequency band of the radiator, the user can confirm that there is an error in the operation mode selected by the user or the attached external antenna.

Also, according to the multipath external antenna and the portable terminal using the multipath external antenna according to the present invention, impedance matching of the external antenna can be easily realized by adjusting the size of the antenna terminal or terminal terminal.

The portable terminal described in the present specification is an apparatus that performs a function of receiving and reproducing radio waves using built-in communication means or transmitting information generated from the portable terminal in a radio wave form, such as a mobile phone, a PDA (Personal Digital Assistants), a digital broadcasting terminal, a navigation, a notebook computer, an electronic notebook, an electronic dictionary, an MP3 player, an MD player, A music player and the like.

Hereinafter, a multipath external antenna and a portable terminal using the same will be described in detail with reference to the drawings.

Referring to FIG. 1, a mobile terminal according to the present invention will be described in terms of components according to functions.

1 is a block diagram of a portable terminal according to an embodiment of the present invention.

The portable terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, an operation unit 130, a sensing unit 140, an output unit 150, a storage unit 160, An interface unit 170, a control unit 180, a power supply unit 190, and the like. It should be noted that when the components are implemented in a practical application, two or more components may be merged into one component, or one component may be subdivided into two or more components as necessary.

Hereinafter, the components will be described in order.

The antenna 200 receives a signal propagated through the wireless communication network to the air or propagates the wireless signal generated by the wireless communication unit 110 to the air. The antenna 200 is attached to the outside of the body of the portable terminal 100 and is detachable. The structure of the antenna 200 will be described in more detail below.

The wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short distance communication module 114 and a GPS module 115.

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server (not shown) through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

Meanwhile, the broadcast related information may be provided through a mobile communication network, and in this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 is configured to be suitable for all broadcasting systems that provide broadcasting signals as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the storage unit 160.

Further, the mobile communication module 112 transmits and receives radio signals to and from at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data depending on a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and the wireless Internet module 113 can be built in or externally.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

The GPS (Global Position System) module 115 receives navigation information from a plurality of satellites.

The antenna detecting unit 116 detects whether the removable external antenna 200 according to the present invention is mounted on or detached from the portable terminal 100.

The A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal. The audio / video input unit 120 may include a camera module 121 and a microphone module 122. The camera module 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. Then, the processed image frame can be displayed on the display module 151.

The image frame processed by the camera module 121 may be stored in the storage unit 160 or transmitted to the outside through the wireless communication unit 110. [ The camera module 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone module 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. The microphone module 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The operation unit 130 generates key input data that the user inputs for controlling the operation of the terminal. The operation unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like. Particularly, when the touch pad has a mutual layer structure with the display module 151 described later, it can be called a touch screen.

The sensing unit 140 senses the current state of the portable terminal 100 such as the open / close state of the portable terminal 100, the position of the portable terminal 100, Thereby generating a sensing signal. For example, when the portable terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. Also, it is responsible for a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like.

The interface unit 170 serves as an interface with all the external devices connected to the portable terminal 100. For example, you may have a wired / wireless headset, an external charger, a wired / wireless data port, a card socket (for example, a memory card, a SIM / UIM card), an audio I / Video I / O (input / output) jacks, and earphones. The interface unit 170 receives data from an external device or receives power from the external device, transfers the data to each component in the portable terminal 100, or transmits data in the portable terminal 100 to an external device.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display module 151, an audio output module 152, an alarm output module 153, and the like.

The display module 151 displays and outputs information processed in the portable terminal 100. [ For example, when the portable terminal 100 is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the portable terminal 100 is in the video communication mode or the photographing mode, the captured image and / or the received image or UI and GUI are displayed.

Meanwhile, as described above, when the display module 151 and the touch pad have a mutual layer structure to constitute a touch screen, the display module 151 can be used as an input device in addition to the output device. The display module 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display). In addition, there may be two or more display modules 151 according to the embodiment of the portable terminal 100. For example, the portable terminal 100 may include an external display module (not shown) and an internal display module (not shown) at the same time.

The audio output module 152 outputs audio data received from the wireless communication unit 110 or stored in the storage unit 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, and the like) performed in the portable terminal 100. The sound output module 152 may include a speaker, a buzzer, and the like.

The alarm output module 153 outputs a signal for notifying the occurrence of an event of the portable terminal 100. Examples of events generated in the portable terminal 100 include a call signal request for requesting a telephone call, a message reception, a key signal input, and an alarm for notifying a predetermined time. The alarm output module 153 outputs a signal for notifying the occurrence of an event in a form other than an audio signal or a video signal. For example, it is possible to output a signal in a vibration mode. When a call signal is received or a message is received, the alarm output module 153 may output a vibration to inform it. Alternatively, when the key signal is input, the alarm output module 153 can output the vibration as the feedback to the key signal input. The user can recognize the occurrence of an event through the vibration output as described above. Of course, a signal for notifying the occurrence of an event may also be output through the display module 151 or the sound output module 152.

The storage unit 160 may store a program for processing and controlling the control unit 180 and may have a function for temporarily storing input / output data (e.g., a phone book, a message, a still image, . ≪ / RTI >

The storage unit 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) A RAM, and a ROM. In addition, the portable terminal 100 may operate a web storage that performs a storage function of the storage unit 150 on the Internet. The storage unit 160 stores map data for searching and guiding the traveling path of the mobile unit 100 when the mobile unit 100 is mounted on a predetermined mobile unit. Here, the moving body is not only a moving means such as a passenger car, a subway, a bicycle, etc., in which the user can ride the portable terminal 100 while mounting or carrying the portable terminal 100, or when the user carries the portable terminal 100 and moves on foot The user may be included in the concept of the moving object.

The control unit 180 typically controls the overall operation of the portable terminal 100. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 may include a multimedia playback module 181 for multimedia playback. The multimedia playback module 181 may be configured in hardware in the controller 180 or separately from software in the controller 180. [

The control unit 180 controls the operation of the wireless communication unit 100 according to the frequency band of the external antenna 200 identified by the antenna detection unit 116 and controls the operation of the external antenna 200 by the user And may display an error message in the display module 151 if the input mode does not match the operation mode of the portable terminal 100.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

In the foregoing, the mobile terminal related to the present invention has been examined from the viewpoint of components according to functions. Hereinafter, the portable terminal related to the present invention will be further described with reference to FIGS. 2 and 3 in terms of components according to the external form. Hereinafter, for simplicity of explanation, a slider type portable terminal will be exemplified among various types of portable terminals such as a folder type, a bar type, a swing type, a slider type, and the like. Therefore, the present invention is not limited to the slider-type portable terminal but can be applied to all types of portable terminals including the above-mentioned type.

2 is a perspective view of a portable terminal according to an embodiment of the present invention.

The portable terminal 100 of the present invention includes a first body 100A and a second body 100B configured to be slidable along at least one direction on the first body 100A.

The state where the first body 100A is disposed in a state of being overlapped with the second body 100B may be referred to as a closed configuration and the first body 100A may be referred to as a second body 100B ) May be referred to as an open configuration.

The portable terminal 100 operates mainly in the standby mode in the closed state, but the standby mode is also released by the operation of the user. Also, the mobile terminal 100 operates mainly in a call mode in an open state, but is also switched to a standby mode after an operation of a user or a predetermined time elapses.

The casing (casing, housing, cover, etc.) constituting the outer appearance of the first body 100A is formed by the first front case 100A-1 and the first rear case 100A-2. Various electronic components are embedded in the space formed by the first front case 100A-1 and the first rear case 100A-2. At least one intermediate case may be additionally disposed between the first front case 100A-1 and the first rear case 100A-2.

The cases may be formed by injection molding of a synthetic resin or may be formed of a metal material such as stainless steel (STS) or titanium (Ti).

The display module 151, the first sound output module 152-1, the first camera module 121-1, or the first operation unit (not shown) is connected to the first body 100A, specifically, the first front case 100A- 130-1 may be disposed.

The display module 151 includes a liquid crystal display (LCD), organic light emitting diodes (OLED), and the like, which visually represent information.

In addition, the display module 151 is overlapped with the touch pad in a layer structure, so that the display module 151 may operate as a touch screen to enable information input by a user's touch.

The first sound output module 152-1 may be implemented in the form of a receiver or a speaker.

The first camera module 121-1 may be adapted to photograph an image or a moving image of a user.

The first operation unit 130-1 receives a command for controlling the network content reproduction and navigation guidance operation of the present invention.

Like the first body 100A, the case constituting the outer appearance of the second body 100B is formed by the second front case 100B-1 and the second rear case 100B-2.

The second operation unit 130-2 may be disposed on the front face of the second body 100B, specifically, the second front case 100B-1.

The third operating unit 130-3, the microphone module 122, and the interface unit 170 may be disposed on at least one of the first front case 100B-1 and the second rear case 100B-2.

The first to third operating portions 130-1, 130-2, and 130-3 may be collectively referred to as a manipulating portion 130. In a tactile manner, Any way can be employed.

For example, the operation unit 130 may be embodied as a dome switch or a touch pad capable of receiving a command or information by a user's push or touch operation, or may be a wheel, a jog type, a joystick, Or the like.

In terms of functions, the first operation unit 130-1 is for inputting commands such as start, end, and scroll, and the second operation unit 130-2 is for inputting numbers, characters, symbols, will be.

Also, the third operating unit 130-3 may operate as a hot-key for activating a special function in the portable terminal.

The microphone module 122 may be implemented in a form suitable for receiving voice, sound, etc. of the user.

The interface unit 170 is a channel through which the portable terminal 100 related to the present invention can exchange data with an external device. For example, the interface unit 170 may be a wired or wireless connection terminal for connecting to an earphone, a port for short range communication (e.g., an IrDA port, a Bluetooth port, A wireless LAN port, or the like), or power supply terminals for supplying power to each component in the portable terminal 100.

The interface unit 170 may be a card socket for accommodating an external card such as a subscriber identification module (SIM) or a user identity module (UIM) or a memory card for storing information.

A power supply unit 190 for supplying power to the portable terminal 100 is mounted on the second rear case 100B-2.

The power supply unit 190 may be detachably coupled to a rechargeable battery, for example, for charging.

3 is a rear perspective view of the portable terminal of FIG.

Referring to FIG. 3, a second camera module 121-2 may be further mounted on the rear surface of the second rear case 100B-2 of the second body 100B. The second camera module 121-2 has a photographing direction substantially opposite to that of the first camera module 121-1 (see FIG. 1), and may have different pixels from the first camera module 121-1 (see FIG. 1).

For example, the first camera module 121-1 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit the face to the other party, and the second camera module 121-2 has a general object It is often desirable to have a high pixel.

A flash 121-3 and a mirror 121-4 may be further disposed adjacent to the second camera module 121-2. The flash 121-3 shines light toward the subject when the subject is photographed by the second camera module 121-2. The mirror 121-4 allows the user to illuminate the user's face or the like when the user intends to take a picture of himself / herself (self-photographing) using the second camera module 121-2.

The second sound output module 152-2 may be additionally disposed in the second rear case 100B-2.

The second sound output module 152-2 may implement a stereo function together with the first sound output module 152-1 (see FIG. 2), and may be used for a call in a speakerphone mode.

On one side of the second rear case 100B-2, a broadcast signal reception antenna 111-1 may be arranged in addition to an antenna for communication. The antenna 111-1 may be installed to be able to be drawn out from the second body 100B.

A part of the slide module 100C that slidably connects the first body 100A and the second body 100B is disposed on the first rear case 100A-2 side of the first body 100A.

The other part of the slide module 100C may be disposed on the second front case 100B-1 side of the second body 100B and may not be exposed to the outside as in this figure.

The second camera module 121-2 and the like are disposed on the second body 100B, the present invention is not limited thereto.

For example, at least two of the configurations 111-1, 121-2 to 121-3, and 152-2 described as being arranged in the second rear case 100B-2, such as the second camera module 121-2, It is also possible that at least one is mounted on the first body 100A, mainly the first rear case 100A-2. In such a case, there is an advantage that the configuration (s) arranged in the first rear case 100A-2 in the closed state is protected by the second body 100B. Further, even if the second camera module 121-2 is not separately provided, the first camera module 121-1 is rotatably formed so that the camera module 121-2 can be photographed up to the photographing direction .

An insertion port 105 for inserting the external antenna 200 is formed on one side of the second body 100B and a terminal connector 300 for coupling with the external antenna 200 is formed in the insertion port 160. [ .

4 is a detailed configuration diagram of a multi-path external antenna according to the first embodiment of the present invention and a mobile terminal using the same.

First, an external antenna 200 according to the present invention includes a case 201, an antenna connector 300, a first radiator 311, and an antenna identification information providing unit 361.

The case 201 is formed to surround a part of the antenna connector 300 and the first radiator 311 and the antenna identification information providing unit 361. At least a part of the antenna connector 300 is formed to protrude from the outer surface of the case 201 on one side of the case 201. The first radiator 311 and the antenna identification information providing unit 361, Is formed inside the case 201. [

The antenna connector 300 includes an electrode receiving portion 301 and a plurality of antenna electrodes 310 to 360 formed on the electrode receiving portion 301 and forming multiple current paths. The antenna electrodes 310 to 360 include a first feeding electrode 310 for supplying a current to the first radiator 311, preliminary feeding electrodes 320 to 350, And a detection electrode 360 for discriminating frequency bands.

Each of the antenna electrodes 310 to 360 is formed of a conductive material and is arranged in parallel to be spaced apart from each other. For example, the electrode receiving portion 301 may be formed of an insulating substrate, and the antenna electrodes 310 to 360 may be formed by fixing a conductive line on the substrate or by applying a conductive material onto the substrate . The electrode receiving portions 301 may be formed in a circular or polygonal shape so that the circular or polygonal antenna electrodes 310 to 360 are spaced apart from each other And can be formed in various structures that can be fixedly supported.

4, a conductive first radiator 311 for receiving a signal of a predetermined frequency band may be connected to the first feed electrode 410 of the antenna electrodes 310 to 360. The first radiator 311 may be for receiving a signal corresponding to a frequency band (204 MHz to 210 MHz) of a terrestrial digital multimedia broadcasting (DMB-T), for example. Further, radiators (not shown) for transmitting and receiving signals of different frequency bands from the first radiator 311 may be connected to the second to fifth feeding electrodes 320 to 350, respectively.

4, the first radiating element 311 is formed by connecting rectangular thin films to each other. However, the first radiating element 311 may be formed in the shape of a rectangle, Some regions may be removed to form slots, or may be formed of one or more striplines, or may be formed in various shapes such as circular, louf, meander, helical, .

According to the present invention, impedance matching of the external antenna 200 can be facilitated by adjusting the width w and the length l of the antenna electrodes 310 to 360 when the antenna electrodes 310 to 360 are formed in a line shape. . According to the present invention, when the cross section of the antenna electrodes 310 to 360 is cylindrical or polygonal, the cross-sectional area of the cross section of the antenna electrodes 310 to 360 is adjusted, It is possible to easily implement the impedance matching of the antenna 200.

An antenna identification information providing unit 361 is connected to the detection electrode 360 of the antenna electrodes 310 to 360. The antenna identification information providing unit 361 may include resistors having different resistance values according to the operating frequency of the first radiator 311 provided in the external antenna 200. For example, when only one radiator 311 is present in the external antenna 200 for receiving a signal of a digital multimedia broadcasting-terrestrial (DMB-T) frequency band as shown in FIG. 4, The identification information providing unit 361 may include a resistor having a predetermined resistance value to indicate that the external antenna 200 can use only the DMB-T frequency band. The antenna identification information providing unit 361 may include a first radiator 311 provided in the external antenna 200 when the external antenna 200 is attached to the portable terminal 100, The form can be varied as long as it is able to identify the frequency band of.

Next, the main configuration of the mobile terminal 100 according to the present invention, which can be combined with the external antenna 200, will be described.

An insertion port 105 is formed at one side of the body of the portable terminal 100 so that the antenna connector 300 of the external antenna 200 can be inserted. A terminal connector 400 is formed in the insertion port 105 to support the antenna connector 300 when the antenna connector 300 is inserted.

The terminal connector 400 includes an electrode receiving part 401 and a plurality of terminal electrodes 410 to 460 formed in the electrode receiving part 401 and forming multiple current paths. The terminal electrodes 410 to 460 are divided into feed electrodes 410 to 450 for supplying a current according to transmission and reception of a radio signal and a detection electrode 460 for distinguishing a frequency band of the external antenna 200 . The terminal electrodes 410 to 460 are arranged in parallel to each other.

The electrode receiving portion 401 may be formed of an insulating substrate, and the terminal electrodes 410 to 460 may be formed by fixing a conductive line on the insulating substrate or by applying a conductive material on the substrate . When the antenna electrodes 310 to 360 have a circular or polygonal cross section, the terminal electrodes 410 to 460 may be fixed to the antenna electrodes 310 to 360, respectively, Structure.

According to the present invention, impedance matching of the external antenna 200 can be performed by adjusting the width w 'and the length l' when the terminal electrodes 410 to 460 are formed in a line shape, Can be easily implemented. Also, according to the present invention, when the terminal electrodes 410 to 460 have a cylindrical or polygonal cross-section, the diameter or cross-sectional area of the terminal electrodes 410 to 460 is adjusted, It is possible to easily implement the impedance matching of the antenna 200. The shape of the insertion port 105 formed in the portable terminal 100 may be variously changed according to the size or shape of the antenna connector 300 and the terminal connector 400.

The terminal electrodes 410 to 460 of the terminal connector 400 are formed at positions corresponding to the antenna electrodes 310 to 360 of the antenna connector 300.

Accordingly, when the antenna connector 300 of the external antenna 200 is inserted into the insertion port 105 of the portable terminal 100, the first antenna terminal 310 is connected to the first terminal 410 The second antenna terminal 320 is connected to the second terminal 420 and the third antenna terminal 330 is connected to the third terminal 430 and the fourth antenna terminal 340 is connected to the second terminal 420. [ The fifth antenna terminal 350 may be connected to the fifth terminal 450 and the sixth antenna 360 may be connected to the sixth terminal 460. [ have.

The first terminal electrode 410 of the terminal electrodes 410 to 460 may be connected to a broadcast receiving module 111 for receiving a broadcast signal using various broadcasting systems. The second terminal electrode 420 may be connected to a mobile communication module 112 for receiving at least one of a voice call signal, a video call signal, a text message and a multimedia message through a mobile communication network. The third terminal electrode 430 may be connected to a wireless Internet module 113 for wireless Internet access. The fourth terminal electrode 440 may be connected to a short-range communication module for short-range communication. The fifth terminal electrode 450 may be connected to a GPS module 115 for receiving navigation information from a satellite.

Accordingly, when the external antenna 200 is attached to the portable terminal 100, the antenna identification information providing unit 361 in the external antenna 200 transmits the antenna ID information to the sixth antenna electrode 360, And is electrically connected to the antenna detecting unit 116 through an electrode 460. The antenna detector 116 may obtain the resistance value of the antenna detector 116 by measuring the voltage applied to the sixth terminal electrode 460 and may detect the resistance value of the external antenna 200 ) Can be detected. That is, the antenna detection unit 116 can check the frequency band of the first radiator 311 provided in the external antenna 200 corresponding to the resistance value of the antenna identification information providing unit 361, And provides information on the frequency band to the control unit 180.

The first radiator 311 provided in the external antenna 200 may be connected to the first antenna electrode 310 and the first antenna electrode 310, And may be electrically connected to the broadcast receiving module 111 through the terminal electrode 410. For example, when the first radiator 311 is to receive a signal in the DMB-T frequency band, the broadcast receiving module 111 controls the first radiator 311 To receive the broadcast signal and the broadcast-related information according to the DMB-T broadcast.

5 is a detailed configuration diagram of a multipath external antenna according to a second embodiment of the present invention.

Referring to FIG. 5, the multipath external antenna 210 according to the second embodiment of the present invention has a structure in which a second radiator 351 having a predetermined frequency band is connected to the fifth antenna electrode 350. For example, the second radiator 351 may be configured to receive a signal corresponding to a GPS frequency band (1.57 GHz).

The antenna identification information provision unit 362 included in the external antenna 210 may be a resistor having a predetermined resistance value to indicate that the external antenna 210 can use only the GPS frequency band. That is, the antenna identification information providing unit 362 shown in FIG. 5 is formed to have a different resistance value from the antenna identification information providing unit 361 according to the first embodiment of the present invention shown in FIG. 4 .

6 is a detailed configuration diagram of a multipath external antenna according to a third embodiment of the present invention.

6, a multi-path external antenna 220 according to a third embodiment of the present invention includes a first radiator 311 for receiving a signal of a DMB-T frequency band, And a second radiator 351 for receiving a signal of a GPS frequency band is connected to the fifth antenna electrode 350.

The antenna identification information providing unit 363 provided in the external antenna 220 may be provided with a predetermined resistance value for informing that the external antenna 220 can use both the DMB-T frequency band and the GPS frequency band . That is, the antenna identification information providing unit 363 shown in FIG. 6 is formed to have a different resistance value from the antenna identification information providing units 361 and 362 shown in FIG. 4 and FIG.

7 is a diagram illustrating a process of connecting an external antenna to a portable terminal according to the present invention.

7, the user inputs a user command for selecting an operation mode of the portable terminal 100 using the operation unit 130 of the portable terminal 100 (S710). The operation mode may include a broadcast reception mode, a mobile communication mode, a wireless Internet mode, a short distance communication mode, a GPS reception mode, etc. corresponding to the wireless communication modules 111 to 116 provided in the portable terminal 100.

After the operation mode (for example, DMB-T mode) of the portable terminal 100 is selected through the operation unit 130, the external antenna 200 according to the present invention is attached to the portable terminal device 100 The antenna connector 300 and the terminal connector 400 are electrically connected (S720).

When the external antenna 200 is connected to the portable terminal 100, the antenna detector 116 in the portable terminal 100 detects the antenna type of the external antenna 200, And provides information on the antenna type to the control unit 180 (S730). The antenna type is provided in the external antenna 200 and is determined according to the frequency band of the radiator. Accordingly, the controller 180 can confirm the frequency band that the external antenna 200 can transmit and receive.

The control unit 180 determines whether the frequency band of the external antenna 200 identified in step S730 matches the operation mode selected by the user using the operation unit 130 in step S710 (S740). That is, the controller 180 determines whether the external antenna 200 suitable for the operation mode selected by the user is inserted in step S710.

If it is determined in operation S740 that the frequency band of the external antenna 200 matches the operation mode selected by the user, the mobile terminal 100 executes the function corresponding to the operation mode (S750) . For example, when the operation mode is the DMB-T mode, the control unit 180 transmits a broadcast signal received through the external antenna 200 and the broadcast receiving module 110 to the display unit 150 Module 151 and the sound output module 152. [0050]

If it is determined in operation S740 that the frequency band of the external antenna 200 does not coincide with the operation mode selected by the user, the controller 180 controls the display unit 151 And outputs an error message informing that the external antenna 150 and the operation mode selected by the user are inconsistent. Through the error message, the user can confirm that there is an error in the operation mode selected by the user or the attached external antenna 200. Accordingly, the user can proceed with the antenna connection process of step S710 using the external antenna having the different frequency band.

The multi-path external antenna and the portable terminal using the multi-path external antenna described above are not limited in the configuration and method of the embodiments described above, but the embodiments can be applied to all or some of the embodiments May be selectively combined.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;

FIG. 2 is a perspective view of an example of a portable terminal according to the present invention. FIG.

3 is a rear perspective view of the portable terminal of FIG. 2;

4 is a detailed view of a multipath external antenna according to a first embodiment of the present invention and a portable terminal using the same.

FIG. 5 is a detailed configuration diagram of a multipath external antenna according to a second embodiment of the present invention. FIG.

FIG. 6 is a detailed configuration diagram of a multipath external antenna according to a third embodiment of the present invention; FIG.

7 is a view for explaining a process of connecting an external antenna to a portable terminal according to the present invention.

Description of the Related Art

100: portable terminal 105:

110: wireless communication unit 111: broadcast receiving module

112: mobile communication module 113: wireless internet module

114: Local area communication module 115: GPS module

116: antenna detection unit 180:

200: external antenna 201: case

300: antenna connector 301: electrode holder

310 to 360: antenna electrode

311: First radiator 351: Second radiator

361 to 363: Antenna identification information providing unit

400: terminal connector 401: electrode holder

410 to 460: Terminal electrode

Claims (10)

An antenna connector having a plurality of antenna terminals spaced apart from each other: At least one radiator connected to any one of the plurality of antenna terminals to receive a radio signal of a predetermined frequency band; An antenna identification information providing unit connected to one of the plurality of antenna terminals and providing different antenna identification information according to a frequency band of the radiator; And And at least a portion of the antenna connector and a case surrounding the radiator and the antenna identification providing portion. The method according to claim 1, Wherein the plurality of antenna terminals are arranged parallel to each other. The method according to claim 1, Wherein at least one of the width, the length, the diameter, and the cross-sectional area of each of the antenna terminals is formed differently according to a frequency band of a radiator connected to the respective antenna terminals. The method according to claim 1, Wherein the antenna identification information providing unit comprises resistors having different resistance values according to a frequency band of the radiator. The method according to claim 1, Wherein at least a part of the antenna connector is formed to protrude from the outer circumferential surface of the case. A body having an insertion port for inserting an external antenna; A terminal connector formed in the insertion port and having a plurality of terminal terminals spaced apart from each other; At least one wireless communication module connected to any one of the plurality of terminal terminals and receiving a radio signal of a predetermined frequency band through the external antenna; An antenna detecting unit connected to any one of the plurality of terminal terminals and detecting a frequency band of the external antenna connected to the terminal connector; And And a controller for controlling operation of the wireless communication module according to a frequency band of the external antenna identified by the antenna detector. The method according to claim 6, Wherein the plurality of terminal terminals are arranged in parallel with each other. The method according to claim 6, Wherein at least one of the width, the length, the diameter, and the cross-sectional area of each of the terminal terminals is formed differently according to a frequency band of the radiator connected to each of the terminal terminals. The method according to claim 6, A display module; And Further comprising a manipulation unit receiving a user command for selecting an operation mode of the portable terminal, Wherein the control unit outputs an error message to the display module when the frequency band of the external antenna connected to the terminal connector is inconsistent with the operation mode input through the operation unit. The method according to claim 6, The wireless communication module includes: A broadcast receiving module for receiving a broadcast signal from an external broadcast management server through a broadcast channel; A mobile communication module for receiving at least one of a voice call signal, a video call signal, a text message and a multimedia message through a mobile communication network; A wireless Internet module for wireless Internet access; A short range communication module for short range communication; And And a GPS module for receiving navigation information from the satellite.

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