KR101698853B1 - Antenna, dongle and mobile terminal comprising the same - Google Patents

Abstract

The present invention relates to an antenna, a dongle including the same, and a mobile terminal, and more particularly, to an antenna capable of minimizing an electrical length of an antenna to improve space utilization and increase reception sensitivity in various frequency bands, And a mobile terminal.

Description

An antenna, a dongle including the antenna, and a mobile terminal including the antenna,

The present invention relates to an antenna capable of minimizing an electrical length of an antenna to increase space utilization and to increase reception sensitivity in various frequency bands, a dongle including the antenna, and a mobile terminal.

The terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

An antenna is a device for encoding or decoding an electric signal by radio waves. An antenna used for a mobile terminal such as a mobile phone can be roughly divided into an external type and an internal type.

In the case of the external antenna, the antenna protrudes to the outside of the mobile terminal to inconvenience the user, and the volume of the mobile terminal increases due to the internal space occupied by the antenna. In the case of the built-in antenna, But it still has a disadvantage of taking up a considerable volume.

2. Description of the Related Art In recent years, as a mobile terminal has become smaller and slimmer, a mounting space for an antenna has also been reduced, and a high performance antenna having a high transmission and reception capacity while occupying a small space has been demanded.

An object of the present invention is to provide an antenna capable of minimizing an electrical length of an antenna to improve space utilization and increase reception sensitivity in various frequency bands, a dongle including the same, and a mobile terminal.

According to an aspect of the present invention, there is provided an antenna including a feed unit for receiving a feed signal; A first radiating part having a first conductive pattern electrically connected to the feed part; A second radiating part electrically connected to the feed part and having resonance characteristics maintained in a lower frequency band than the first radiating part; And a ground portion electrically connected to the feed portion.

A dongle according to an embodiment of the present invention includes a control unit, a first antenna for receiving a feed signal from the control unit, and a first body connected to the control unit and including a connection terminal exposed to the outside; And a second body including a second antenna that is rotatably or slidably mounted on the first body to selectively expose the connection terminal and receives a feed signal from the control unit.

Here, the second antenna may include a feed unit for receiving a feed signal from the control unit; A first radiating part having a first conductive pattern electrically connected to the feed part; A second radiating part electrically connected to the feed part and having resonance characteristics maintained in a lower frequency band than the first radiating part; And a ground portion electrically connected to the feed portion.

A mobile terminal according to an embodiment of the present invention includes a case; A display unit provided in the case; A control unit provided in the case; And first and second antennas receiving the feed signals from the control unit, respectively.

Here, the second antenna may include a feed unit for receiving a feed signal from the control unit; A first radiating part having a first conductive pattern electrically connected to the feed part; A second radiating part electrically connected to the feed part and having resonance characteristics maintained in a lower frequency band than the first radiating part; And a ground portion electrically connected to the feed portion.

The antenna according to at least one embodiment of the present invention configured as described above, the dongle including the same, and the mobile terminal can minimize the electrical length of the antenna to increase the space utilization and increase the reception sensitivity in various frequency bands .

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a front perspective view of a mobile terminal according to an embodiment of the present invention;
3 is a rear perspective view of a mobile terminal according to an embodiment of the present invention;
4 is a perspective view showing an antenna according to an embodiment of the present invention;
5 is a circuit diagram of the antenna shown in Fig.
6 is a circuit diagram showing a modified example of the antenna shown in Fig.
7 is a perspective view showing a dongle according to an embodiment of the present invention;
FIG. 8 is a perspective view of a main part for illustrating an internal structural member of a dongle according to an embodiment of the present invention; FIG.
9 and 10 are conceptual diagrams of a mobile terminal according to an embodiment of the present invention.

Hereinafter, an antenna related to the present invention, a dongle including the same, and a mobile terminal will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), navigation and the like. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

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

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server 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 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.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. 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).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems 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 memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. 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 may be built in or externally attached to the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

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 a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 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. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 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. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

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

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

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 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 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. At least two haptic modules 154 may be provided according to the configuration of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 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 (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

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

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

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.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, May be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. The software codes are stored in the memory 160 and can be executed by the control unit 180. [

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

The disclosed mobile terminal 100 has a terminal body in the form of a bar. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

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

The display unit 151, the sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the front body 101 have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

3 is a rear perspective view of the mobile terminal shown in FIG.

Referring to FIG. 3, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2), and may be a camera having different pixels from the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 are additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2) and may be used for the implementation of the speakerphone mode in a call.

In addition to the antenna for a call or the like, a broadcast signal reception antenna 124 may be additionally disposed on the side of the terminal body. The antenna 124 constituting a part of the broadcast receiving module 111 (see FIG. 1) may be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the mobile terminal 100 is mounted on the terminal body. The power supply unit 190 may be built in the terminal body or may be detachable from the outside of the terminal body.

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all controlled by the touch pad 135. [ Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

The touch pad 135 operates in correlation with the display portion 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have a size equal to or smaller than that of the display unit 151.

The mobile terminal 100 related to the present invention has been described in terms of the functional components and the arrangement of the respective components.

Hereinafter, among various types of mobile terminals such as a folder type, a bar type, a swing type, and a slider type, a bar type mobile terminal having a front touch screen will be described as an example for convenience of explanation. However, the present invention is not limited to the bar-type mobile terminal but can be applied to all types of mobile terminals including the above-mentioned types, and the same or similar constituent members as those described with reference to Figs. 1 to 3 are the same or similar The reference numerals are given, and redundant description is omitted.

An antenna applicable to the mobile terminal 100 will be described in detail with reference to the accompanying drawings.

FIG. 4 is a perspective view showing an antenna according to an embodiment of the present invention, and FIG. 5 is a circuit diagram of the antenna shown in FIG.

An antenna 1 according to an embodiment of the present invention includes a feed part 10 for receiving a feed signal and a first radiation part 20 having a first conductive pattern 21 electrically connected to the feed part 10 A second radiation part 30 electrically connected to the feed part 10 and having a resonance characteristic maintained in a lower frequency band than the first radiation part 20 and a second radiation part 30 electrically connected to the feed part 10, And a ground portion (40).

The second radiation unit 30 may include a dielectric chip 31 electrically connected to the feed unit 10 and a second conductive pattern 34 electrically connected to the dielectric chip 31 have.

The dielectric chip 31 has a conductor 33 patterned on the dielectric block 32 and the conductor 33 can be wound around the dielectric block 32 in a helical manner. The winding of the conductor may be formed by winding a low temperature co-fired ceramic (LTCC) or a coil, or by winding a conductor strip having a constant width around the dielectric block. In addition, the winding of the conductor may be implemented in a pattern such as a meander line, a patch shape, or an array shape in addition to the printing or masking pattern on the dielectric block.

Since the dielectric chip 31 has a high dielectric constant and moves the resonance band downward, the physical length required for the operation of the antenna can be reduced and the volume of the antenna can be reduced.

The second conductive pattern 34 may be connected to the dielectric chip so that the second radiation 30 is electrically connected to the second conductive pattern 34 via the second conductive pattern 34. [ It is preferable that the main radiation is performed.

That is, the dielectric chip 31 having the permittivity and the permeability effectively reduces the electrical length of the antenna 1. It is possible to reduce the electrical length of the antenna through the dielectric chip 31 as much as possible, thereby facilitating the miniaturization and making the main radiation through the second conductive pattern 34 to increase the radio reception sensitivity.

The first radiation part 20 and the second radiation part 30 preferably have different operating frequencies and the first radiation part 20 composed of the first conductive pattern 21 has resonance characteristics And the second radiation part 30 composed of the dielectric chip 31 can maintain resonance characteristics in a frequency band lower than that of the first radiation part 20. For example, Can be maintained. The length of the second conductive pattern 34 may be smaller than the length of the first conductive pattern 21.

The first conductive pattern 21 and the second conductive pattern 24 may be formed of a meander type or a spiral type and the meander type may have a large area to increase the space utilization. In spiral type, the inductance is large, but the current can not be canceled, so the radiation efficiency can be increased.

The feed unit 10 may be provided with a connector to be electrically connected to the RF cable 12. The feed unit 10 may include a main portion And an RF cable 12 for receiving a feed signal from a circuit board (not shown).

Here, the RF cable 12 may function as a separate radiating part from the first and second radiating parts, and the length of the RF cable 12 may be adjusted to change the resonance characteristics.

Meanwhile, the feed portion 10 may be disposed inside the ground portion 40 to improve space utilization.

The antenna 1 may further include a matching unit 50 that connects the feed unit 10 and the first radiation unit 20. The matching unit 50 can acquire a high degree of isolation as an impedance matching unit and can eliminate adverse influences such as mutual interference or unnecessary signals.

The antenna 1 has a first region 61 in which the feed portion 10 and the ground portion 40 are provided and a second region 61 in which the first and second radiation portions 20 and 30 are provided, 62 and the boundary regions 61 and 62 of the first region 61 and the second region 62 of the insulating member 60 may be flexible .

Therefore, the antenna 1 can be mounted on a wireless product such as a mobile terminal through the insulating member 60.

As described above, the antenna 1 according to the embodiment of the present invention can minimize the electrical length of the antenna to improve the space utilization and increase the reception sensitivity in various frequency bands.

6 is a circuit diagram showing a modified embodiment of the above-described antenna.

6, the antenna has a first radiation area A and a second radiation area B, and each radiation area A and B has the first radiation parts 20-1 and 20-2 And second radiation units 30-1 and 30-2, respectively. That is, the feed section 10, the ground section 40 and the RF cable 12 are the same as the above-described antenna 1, and the first radiation sections 20-1 and 20-2 and the second radiation section 30 -1, and 30-2 in the radial direction.

A dongle is a small piece of hardware that connects to a computer and can be carried with a USB flash drive. Initially used for computer software authentication purposes, the word dongle is now widely used to refer to broadband wireless adapters.

Because of the characteristics of the mobile terminal, which requires miniaturization and slimness, the installation space of the antenna is inevitably reduced, and accordingly, the installation space of the antenna is also reduced. However, as the size of the antenna increases, the performance improves. Therefore, development of an antenna having a high performance while taking up a small space is required.

In order to solve such a problem, an antenna of a multiple input multiple output (MIMO) scheme or a diversity scheme is proposed.

The diversity method is a method of combining the outputs of two or more types of antennas and receivers when a signal is received and a method of using an external antenna separately from the antenna built in the mobile terminal.

In the MIMO scheme, the number of antennas of a base station and a mobile terminal is increased to two or more to transmit data in a plurality of paths, a receiver detects a signal received through each path to reduce interference, It is regarded as one of the core technologies of 4G which is mobile communication technology.

Hereinafter, a dongle according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For convenience, the dongle is a wireless adapter and the antenna is a microwave system.

FIG. 7 is a perspective view showing a dongle 200 according to an embodiment of the present invention, and FIG. 8 is a perspective view showing a main part of the dongle 200 shown in FIG. 7A is a perspective view showing a state in which the connection terminal, for example, the USB connector 230 is not exposed to the outside, and FIG. 7B is a perspective view showing the state in which the USB connector 230 is exposed to the outside 7C is a perspective view showing a state of being mounted on an electrical appliance such as a notebook computer L and performing a function as an antenna.

7 and 8, a dongle 200 according to an embodiment of the present invention includes a first body 210 having a connection terminal 230 such as a USB terminal and a second body 210 having a connection terminal 230 selectively exposed And a second body 220 that is rotatably or slidably mounted to the first body 210 to allow the first body 210 to be rotated.

The first body 210 includes a first antenna 211 receiving a power supply signal from a control unit and a connection terminal 230 connected to the control unit and exposed to the outside.

The control unit may include a main substrate 212 and a sub substrate 213. The first body 210 may be provided with a shield frame 214 between the main substrate 212 and the sub substrate.

The second body 220 includes a second antenna 1 for receiving a power supply signal from the controller. In FIG. 8, the second antenna 1 is connected to the sub-board 213, The present invention is not limited thereto and can be connected to the main board 211.

Here, the second antenna 1 has the same structure as the antenna 1 described with reference to Figs. 4 and 5.

Specifically, the second antenna 1 includes a first radiation part 20 having a feed part for receiving a feed signal from the control part and a first conductive pattern electrically connected to the feed part, and a second radiation part 20 electrically connected to the feed part A second radiation part 30 whose resonance characteristics are maintained in a lower frequency band than the first radiation part, and a ground part 40 electrically connected to the feed part.

The dongle 200 may further include an RF cable 12 connecting the feed unit of the second antenna 1 and the control unit and the second radiating unit 30 may electrically connect the feed unit The second radiation part 30 may include a second conductive pattern 34 electrically connected to the dielectric chip 31 and the second conductive pattern 34 as described above. 34). ≪ / RTI >

The second antenna 1 may include an insulating member 30 which is divided into a first region in which the feed portion and the ground portion 40 are provided and a second region in which the first and second radiation portions 20 and 30 are respectively provided, And the boundary portions and the regions of the first region and the second region of the insulating member may be formed in a flexible manner.

Therefore, the second antenna 1 can be disposed in the second body 220 in a state of being attached to an antenna carrier (not shown) or the like through an insulating member, and can secure high insulation characteristics with the first antenna 211 It is preferable that the insulating member is disposed in the second body 220 such that the first region is perpendicular to the longitudinal direction of the connection terminal 230 in the open state of the second body 220.

Here, it is preferable that the first antenna 211 is grounded to a ground provided in the control unit. Therefore, each antenna 211 and 1 has a separate ground unit, so that mutual interference can be minimized.

9 and 10 are conceptual diagrams of a mobile terminal to which an antenna according to an embodiment of the present invention is applied. Specifically, FIG. 9 shows a bar type mobile terminal 300, FIG. 10 (a) 10 (b) shows a folder type mobile terminal 500, and description of each component included in the mobile terminals has been described above with reference to FIG. 1 to FIG. 3, Duplicate descriptions shall be omitted.

9, a mobile terminal 300 according to an embodiment of the present invention includes a case, a display unit provided in the case, a control unit 380 provided in the case, and a control unit 380 for receiving a power supply signal from the control unit 380, And includes first and second antennas 310 and 320.

Here, the second antenna 320 is the same as the antenna 1 described with reference to FIGS. 4 and 5. Specifically, the second antenna includes: a feed unit for receiving a feed signal from the control unit; A first radiating part having a first conductive pattern electrically connected to the feed part; A second radiating part electrically connected to the feed part and having resonance characteristics maintained in a lower frequency band than the first radiating part; And a ground portion electrically connected to the feed portion.

The RF cable 330 may further include an RF cable 330 connecting the feed unit and the control unit.

As described above, the RF cable 330 functions as a separate radiation part, can adjust the resonance characteristics according to the length of the RF cable 330, and can have an effect of extending the ground part. Therefore, It is easy to secure insulation characteristics for the first and second electrodes 310 and 320.

The first antenna 310 and the control unit may be connected to each other by an RF cable and the control unit 380 and the second antenna 320 may be connected to the control unit 380. [ And are spaced apart from each other by a predetermined distance d1 and d2.

10A, the case may include a main body 420 and a cover body 410 slidably mounted on the main body 420. The first antenna 440 and the second antenna 440 The control unit 430 may be provided in the main body 420 and the second antenna 450 may be provided in the cover body 410.

The second antenna 450 is the same as the antenna 1 described with reference to FIGS. 4 and 5. The second antenna 450 and the controller 430 may be connected to each other by an RF cable 460.

10B, the case may include a main body 520 and a cover body 510 rotatably mounted to the main body 520. The case may include a first antenna 540 The control unit 530 may be provided in the main body 520 and the second antenna 550 may be provided in the cover body 510. [

4 and 5, and the second antenna 550 and the control unit 530 may be connected to each other through an RF cable 560. The second antenna 550 is similar to the antenna 1 described with reference to FIGS.

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

1: antenna
100, 300, 400, 500: mobile terminal
200: Dongle

Claims (22)

delete delete delete delete delete delete delete delete A first antenna for receiving a feed signal from the control unit, and a first body connected to the control unit and including a connection terminal exposed to the outside;
A first ground unit provided in a control unit of the first body; And
And a second body including a second antenna rotatably mounted on the first body for selectively exposing the connection terminal and receiving a feed signal from the controller,
The second antenna includes: a feed unit for receiving a feed signal from the control unit;
A first radiating part having a first conductive pattern electrically connected to the feed part;
A second radiating part electrically connected to the feed part and having resonance characteristics maintained in a lower frequency band than the first radiating part; And
And a second ground portion provided in the second body and electrically connected to the feed portion. 10. The method of claim 9,
Further comprising an RF cable connecting the control unit and the feed unit of the second antenna. 10. The method of claim 9,
Wherein the second radiating portion includes a dielectric chip electrically connected to the feed portion and a second conductive pattern electrically connected to the dielectric chip. delete 10. The method of claim 9,
Further comprising an insulating member divided into a first region in which the feed portion and the second ground portion of the second antenna are respectively disposed and a second region in which the first and second radiation portions are respectively provided,
Wherein a boundary portion and each region of the first region and the second region of the insulating member are formed in a flexible manner. 14. The method of claim 13,
Wherein the insulating member is disposed in the second body such that the first region is perpendicular to the longitudinal direction of the connection terminal in the open state of the second body. A case including a main body and a cover body rotatably mounted to the main body;
A display unit provided in the case;
A control unit provided in the main body;
A first ground unit provided in a control unit of the main body;
A first body provided in the main body and receiving a feed signal from the control unit; And
And a second antenna provided on the cover body for receiving a feed signal from the controller,
The second antenna includes: a feed unit for receiving a feed signal from the control unit;
A first radiating part having a first conductive pattern electrically connected to the feed part;
A second radiating part electrically connected to the feed part and having resonance characteristics maintained in a lower frequency band than the first radiating part; And
And a second ground portion electrically connected to the feed portion. 16. The method of claim 15,
Further comprising an RF cable connecting the feed unit and the control unit. 16. The method of claim 15,
Wherein the second radiating portion includes a dielectric chip electrically connected to the feed portion and a second conductive pattern electrically connected to the dielectric chip. delete delete delete 10. The method of claim 9,
Wherein the first body and the second body are rotatable to be perpendicular to each other. 16. The method of claim 15,
Wherein the main body and the cover body are rotatable so as to be perpendicular to each other.

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