KR101640023B1 - Wireless communication double antenna for portable electronic appliance - Google Patents

Abstract

The present invention relates to a wireless communication dual antenna for a mobile terminal. The antenna is based on a base film (10) and has a start terminal (21), a common terminal (23), and an end terminal outside while an external loop pattern (31) and an internal loop pattern (33) are connected by a connection pattern (32). The external loop pattern (31) from the start terminal (21) to the common terminal (23) is for first mode wireless communication (40), and together with the external loop pattern (31) from the start terminal (21) to the end terminal (24) through the connection pattern (32), the internal loop pattern (33) is for second mode wireless communication (50). Especially, as the second mode wireless communication (50) is realized by from the external loop pattern (31) to the internal loop pattern (330), the present invention can guarantee improved non-contact magnetic induction combination force.

Description

[0001] WIRELESS COMMUNICATION DOUBLE ANTENNA FOR PORTABLE ELECTRONIC APPLIANCE [0002]

The present invention relates to a wireless communication dual antenna for a portable terminal, and more particularly, to a wireless communication dual antenna for a portable terminal which realizes a first mode wireless communication by an outer loop pattern from a start terminal to a common terminal, The present invention relates to a wireless communication dual antenna for a wireless communication dual antenna portable terminal for a portable terminal that extends a second mode wireless communication by an inner loop pattern in addition to an outer loop pattern.

Generally, a mobile terminal is an intelligent terminal that adds a computer support function such as an internet communication and an information search to a mobile phone, and is a smart phone that can utilize the Internet and various applications (application programs) while viewing a window displaying a screen .

Laid-Open Publication No. 2013-0113222 (an antenna and a mobile terminal equipped with the antenna) can be introduced as the prior art document 1.

FIG. 1A is a block diagram of a mobile terminal related to the prior art document 1. FIG.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video (A / V) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, A memory 160, an interface unit 170, a control unit 180, a power supply unit 190, and the like.

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, a location information module 115, (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 user input unit 130 is connected to the front and rear of the mobile terminal 100, A button 136 positioned on the side surface, and a touch sensor (static pressure / static electricity) 137.

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 and may include a proximity sensor 141. The output unit 150 generates an output related to visual, auditory or tactile sense, The display unit 151, the sound output module 152, the alarm unit 153, and the haptic module 154, for example.

The memory unit 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, For example.

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 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 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 power supply unit 190 may include, for example, a battery, a connection port, a power supply control unit, and a charge monitoring unit.

1B is a rear perspective view of the mobile terminal according to the prior art document 1.

Referring to FIG. 1B, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. A flash 123 and a mirror 124 may be additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '.

1C is a plan view showing that the antenna 200 according to the prior art document is attached to the rear cover 103 of the mobile terminal 100. FIG.

1A to 1C, a front case 101, a rear case 102, a rear cover (or a battery cover) 103, a camera 121 ', an interface 170, a microphone 122, A battery 191, a battery mounting portion 104, a USIM card mounting portion 105, and a memory card mounting portion 106 are shown.

The rear case 102 may have a space on which external components such as the battery loading unit 104, the USIM card loading unit 105, and the memory card loading unit 106 may be mounted. In general, the external component mounted on the surface of the rear case 102 is for expanding the function of the mobile terminal 100 in order to fulfill the diversified functions of the mobile terminal 100 .

The antenna 200 is required to perform wireless communication with an external device and a server while diversifying functions of the mobile terminal 100. [ An antenna 200 for receiving broadcast information such as an EPG (Electronic Program Guide) of a DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of a Digital Video Broadcast-Handheld (DVB-H) An antenna 200 for a wireless Internet such as HSDPA, GSM, CDMA, WCDMA and LTE, a Bluetooth (Short Range Communication) technology, a Radio Frequency Identification (RFID) UWB (Ultra Wideband), and an antenna 200 for ZigBee short-range wireless communication.

It is preferable that the antenna 200 is formed on a large area for reception of radio waves and is located on the surface side of the mobile terminal 100 so as not to be influenced by other electronic components. Therefore, as shown in FIG. 1C, the antenna 200 is disposed on the rear cover 103, which can secure a large area without mounting an electronic component.

The antenna 200 of the prior art document 1 has a soft substrate 210, two types of patterns, and a magnetic sheet 230 as shown in FIG. 1C.

The patterns are roughly divided into a high frequency pattern 220 and a low frequency pattern 225 in two types. That is, different frequency bands are used. The high frequency pattern 220 is suitable for wireless communication, and the low frequency pattern 225 is mainly suitable for wireless charging of a battery.

The wireless charging technique used in the mobile terminal 100 utilizes the electromagnetic induction principle.

The electromagnetic induction flows a current to form a magnetic field, and when the mobile terminal 100 is placed on the magnetic field, a current flows through the low frequency pattern mounted on the mobile terminal 100, that is, the wireless charging coil 225 to be charged.

 Generally, the power used in a small household appliance such as the mobile terminal 100 uses a relatively low frequency of several hundreds kHz or less, although the frequency may vary depending on the amount of power to be transmitted.

As the functions of the mobile terminal 100 are diversified, an antenna is required for the functions of Near Field Communication (NFC) and Radio Frequency Identification (RFID) in addition to transmission of radio waves for telephone conversation. Particularly, the frequency used is different according to the wireless communication technology, and the high frequency is used relative to the frequency used for wireless charging to transmit a large amount of data.

An example of a communication method in which the wireless communication antenna 200 of the prior art document 1 is used is near field communication (NFC). The short-range wireless communication is a kind of RFID (non-contact wireless communication module) using a frequency band of about 13.56 MHz.

Is a technology for transmitting data between terminals 100 at a distance of approximately 10 to 40 cm, and is a next generation local area communication technology that is relatively notable in security and low in price because of its short communication distance. Data reading and writing can both be used, and it is not necessary to set up between devices like Bluetooth, so that a near-field communication function is recently added to the mobile terminal 100.

In the mobile terminal 100 according to the prior art document 1, since the high-frequency pattern 220 and the low-frequency pattern 200 are physically and completely isolated from each other, the entire area of the mobile terminal 100 is relatively large. In particular, The pattern pattern 220 needs to have a patterning length relatively larger than that of the low frequency pattern 220 in order to increase the efficiency of the electromagnetic induction action at a distance of 10 to 40 cm. In the state of being separated from the low frequency pattern 200, It has to be widely circulated so that it occupies a large and occupied space.

2A is an exemplary diagram showing a planar arrangement structure of an NFC antenna and a WPT resonator in a resonance type wireless power receiving system to which a prior art document 2 (Laid-Open Patent Application No. 2013-0123310; resonance stage device in a resonance type wireless power receiving system) is applied. And FIG. 2B shows the arrangement structure of the NFC antenna and the WPT resonator on the portable terminal.

Referring to FIGS. 2A and 2B, the mechanical mounting of the NFC antenna 10 and the WPT resonator 20 in a wireless power receiving system, for example, a portable terminal, to which the prior art document 2 is applied will be described. Type antenna structure The NFC antenna 10 is installed so as to be located inside the WPT resonator 20 having the loop antenna structure.

The NFC antenna 10 may be installed on the back surface of the main body 1 of the portable terminal 1 (on the battery part that can be removably installed), and the WPT antenna 20 may be installed on the back cover 2 of the portable terminal. .

At this time, a properly designed isolation distance (Isolation d, Isolation h) is generated between the NFC antenna 10 and the WPT resonator 20 in order to secure the isolation characteristic. This isolation distance mechanically determines the isolation characteristics of the two frequencies (@ 13.56 MHz, 6.78 MHz) of the NFC antenna 10 and the WPT resonator 20.

2C is a circuit diagram of a resonance stage device in a resonance type wireless power receiving system according to an embodiment of the prior art document 2, and 20 is a high impedance circuit.

Referring to FIG. 2C, the resonance stage device according to the feature of the prior art document 2 includes a WPT resonator (not shown) to prevent the harmonics emitted from the WPT power amplifier (PA) 20 may be connected to a shunt capacitor 40.

However, in the resonance-type wireless power receiving system according to the prior art document 2, since the NFC antenna 10 and the WPT resonator 20 are physically and completely isolated from each other, the total area of the NFC antenna 10 and the WPT resonator 20 are relatively large, The space is also wide and has a disadvantage that it occupies a large part.

3 is a circuit diagram of the wireless power transmission control apparatus 100 when the power supply frequency band is 6.78 MHz in accordance with the embodiment of the prior art document 3 (Laid-Open Patent Application No. 2013-0027403).

3, the wireless power transmission control apparatus 100 uses the 13.56 MHz band as the communication frequency band and uses the power supply frequency band different from the communication frequency band as the 6.78 MHz band, Even if the intensity is increased, it will not be affected by the regulation.

In the case where the 13.56 MHz band is used as the communication frequency band and the power supply frequency band is different from the communication frequency band using the 6.78 MHz band according to the embodiment of the prior art document 3, The configuration can be configured differently.

For example, as shown in FIG. 3, a separate configuration for transmitting / receiving a wireless power transmission control signal to / from the NFC IC 140 may be provided outside the Power IC 120.

3, the circuit of the wireless power transmission control apparatus 100 includes a WPT coil 410, an NFC coil 440, a Power IC 420, a GPIO (general purpose input / output) expander 422, An ADC (Analog Digital Converter) 424, and an NFC IC 430.

The WPT coil 410 may be connected to the POWER IC 420 and resonates in a frequency band of 6.78 MHz to receive power from the power supply TX and provide it to the POWER IC 420. The Power IC 420 generates various signals required for wireless power reception and operates according to a wireless power transmission control signal according to a message received from the power supply TX. The power IC 420 activates the overall operation of the wireless power transmission control apparatus 100 by using the voltage according to the power received by the WPT coil 410. Also, while receiving power, it measures and adjusts the current and voltage obtained by the supplied power, and outputs a constant voltage (VDC_out).

The GPIO Expander 422 is an input / output module that allows a signal output by the POWER IC 420 to be input to the NFC IC 430 between the POWER IC 420 and the NFC IC 430, So that a signal output by the power IC 420 is input to the POWER IC 420. The ADC 424 converts an analog signal to a digital signal with respect to a signal exchanged between the POWER IC 420 and the NFC IC 430 and converts the digital signal into an analog signal and outputs the digital signal to the POWER IC 420 and the NFC IC 430, Thereby controlling the transmission and reception of signals.

The NFC IC 430 operates in accordance with the power provided by the Power IC 420 and performs NFC communication with the power supply TX through the NFC coil 440. At this time, the NFC coil 440 may be composed of an NFC coil capable of radio wave radiation and radio wave reception in the 13.56 MHz band.

The NFC IC 430 analyzes the signal received from the power supply TX through the NFC antenna 440 and outputs a wireless power transmission control signal to the power IC 431 using the NFC IC input / (420). At this time, the NFC IC input / output unit 431 may include an SDA terminal and an SDC terminal. The SDA terminal receives or outputs data for wireless power transmission control, and the SDC terminal outputs a clock. Also, according to the embodiment of the prior art document 3, the wireless power transmission control signal is a control signal required for wireless power transmission, and it is possible to control voltage, current, temperature, and the like.

On the other hand, in the embodiment of the above-described prior art document 3, the case where the power supply frequency band is 6.78 MHz and the 13.56 MHz band is used as the communication frequency band has been described, but the power supply frequency band may be used at 100-200 kHz have.

However, since the WPT coil 410 and the NFC coil 440 are physically and completely isolated from each other, the total area of the WPT coil 410 and the NFC coil 440 are relatively large, It has limitations that can not be overcome.

Prior Art Document 1 - Patent Document 10-2013-0113222 (Antenna and Mobile Terminal Including the Same) Prior Art Document 2 - Laid-Open Patent Application No. 2013-0123310 (resonance stage device in a resonance type wireless power receiving system) Prior Art Document 3 - Publication No. 2013-0027403 (Wireless Power Transmission Control Device)

It is an object of the present invention to realize a first mode wireless communication by an outer loop pattern extending from a start terminal to a common terminal, and to provide an outer loop pattern extending from a start terminal to an end terminal through a connection pattern, Mode wireless communication in which a wireless communication dual antenna for a portable terminal is provided.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wireless communication dual antenna for a portable terminal, which enables a second mode wireless communication to be extended and extended to an inner loop pattern including an outer loop pattern, thereby doubling the non-contact magnetic inductive coupling force.

It is an object of the present invention to provide a method and apparatus for wireless communication that not only can be extended to an outer loop pattern as well as an inner loop pattern in a second mode wireless communication, thereby doubling the wireless communication efficiency, and further reducing the length and size of the inner loop pattern and outer loop pattern The present invention provides a wireless communication dual antenna for a portable terminal, which can reduce the total occupied space.

According to an aspect of the present invention,

A connection pattern extending from the outer loop pattern to an inner side of the base film; and a connection pattern extending from the outer loop pattern to the inner side of the base film, An inner loop pattern which is wound toward the center of the base film and connected to an outer end terminal of the base film, and a common terminal joined to the connection pattern and drawn out to the outside,

Wherein the outer loop pattern from the start terminal to the common terminal implements a first mode wireless communication,

And the inner loop pattern extending from the start terminal to the end terminal through the connection pattern extends the second mode wireless communication as a basic feature of the technical structure.

According to the present invention, the first mode wireless communication can be realized by the outer loop pattern extending from the start terminal to the common terminal. In addition to the outer loop pattern extending from the start terminal to the end terminal through the connection pattern, 2 mode wireless communication can be extended.

The present invention is advantageous in that the second mode wireless communication can be expanded and extended to the inner loop pattern including the outer loop pattern, thereby doubling the non-contact magnetic inductive coupling force.

The present invention can be extended not only to the inner loop pattern but also to the outer loop pattern by the second mode wireless communication, thereby doubling the wireless communication efficiency, and further reducing the length and size of the inner loop pattern and the outer loop pattern It is possible to reduce the total occupied space.

1A is a block diagram of a mobile terminal related to the prior art document 1;
1B is a rear perspective view of a mobile terminal according to prior art document 1;
1C is a plan view showing that the antenna according to the prior art document 1 is attached to the back cover of the mobile terminal.
FIG. 2A is an exemplary view showing a planar arrangement structure of an NFC antenna and a WPT resonator in a resonance-type wireless power receiving system to which the prior art document 2 is applied; FIG.
2B is a structural view showing an arrangement structure of an NFC antenna and a WPT resonator of a prior art document 2 on a portable terminal.
2C is a circuit diagram of a resonance stage device in a resonance type wireless power receiving system according to an embodiment of the prior art document 2. FIG.
Fig. 3 is a circuit diagram of a wireless power transmission control apparatus using a power supply frequency band of 6.78 MHz according to an embodiment of the prior art document 3; Fig.
FIG. 4 is a plan view illustrating a wireless communication dual antenna for a portable terminal according to the present invention, which can be derived from the prior art documents.
5A is a plan view showing a wireless communication dual antenna for a portable terminal according to the present invention.
5B is an equivalent circuit diagram illustrating a wireless communication dual antenna for a portable terminal according to the present invention.
6A is a plan view of a wireless communication dual antenna for a portable terminal according to an embodiment of the present invention.
6B is an equivalent circuit diagram illustrating a wireless communication dual antenna for a portable terminal according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of a wireless communication dual antenna for a portable terminal according to the present invention will be described with reference to the drawings, and a plurality of embodiments thereof may exist. You will gain a better understanding of these benefits.

FIG. 4 is a plan view illustrating a wireless communication dual antenna for a portable terminal according to the present invention, which can be derived from the prior art documents.

As shown in FIG. 4, a wireless communication dual antenna for a portable terminal is connected to an external first start terminal 111 and a first end terminal 112, respectively, based on a flexible base film 100, The outer loop pattern 320 is independently connected to the second start terminal 121 and the second end terminal 122 on the outer side of the film 100, And an inner loop pattern 330 wound around the center of the base film 100 to be spaced apart.

At this time, the outer loop pattern 320 includes NFC and RFID for transmitting mutual external terminal data in non-contact magnetic induction coupling power in a frequency band of 13.56 MHz at a distance of approximately 10 to 40 cm The inner loop pattern 330 can be used as the first mode wireless communication 400. In the inner loop pattern 330, a magnetic field is formed by flowing a current according to the electromagnetic induction principle, that is, the induction magnetic field principle, The second mode wireless communication 500 can utilize the WPT that enables the battery to be charged by the non-contact magnetic inductive coupling force implemented in the second mode wireless communication 500. [

In general, the wireless communication dual antenna for a portable terminal has the outer loop pattern 320 independently provided on the outer periphery of the base film 100 by the first start terminal 111 and the first end terminal 112, The loop pattern 330 is independently provided at the center of the base film 100 by the second start terminal 121 and the second end terminal 122 so that the first mode wireless communication 400 and the second mode wireless communication It is impossible to maximize the efficiency of the non-contact magnetic induction coupling force of the antenna 500 according to the communication environment.

Particularly, the inner loop pattern 330 used as the second mode wireless communication 500 of the WPT, which enables battery charging of the portable terminal, is patterned independently in a limited region of the base film 100 inside the outer loop pattern 320, The number of turns is small and the total length is also short. In other words, the inductance is small and the charging efficiency of the battery can not be maximized.

FIG. 5A is a plan view of a wireless communication dual antenna for a portable terminal according to the present invention, and FIG. 5B is an equivalent circuit diagram illustrating a wireless communication dual antenna for a portable terminal according to the present invention.

5A and 5B, a wireless communication dual antenna according to the present invention includes a flexible base film 10, a flexible antenna 20, A connecting pattern 32 extending from the outer loop pattern 31 to the inside of the base film 10 and a connecting pattern 32 extending from the connecting pattern 32 to the center of the base film 10 An inner loop pattern 33 connected to the outer end terminal 24 after being wound on the connection pattern 32 and a common terminal 23 joined to the connection pattern 32 and drawn out to the outside.

That is, only the start terminal 21, the common terminal 23 and the end terminal 24 are provided externally while the base film 10 is used as a base, and the outer loop pattern 31 and the inner loop pattern 33 are connected to the connection pattern The outer loop pattern 31 extending from the start terminal 21 to the common terminal 23 realizes the first mode wireless communication 40 and is connected to the start terminal 21 In addition to the outer loop pattern 31 extending from the connection pattern 32 to the end terminal 24, the inner loop pattern 33 implements the second mode wireless communication 50, in particular the second mode wireless communication 50 Is extended together with the inner loop pattern 33 including the outer loop pattern 31. [

The wireless communication dual antenna for a portable terminal according to the present invention does not independently form the first mode wireless communication 40 and the second mode wireless communication 50 that are wound (patterned) on the base film 10, The common terminal 23 is joined to the connection pattern 32 in a state in which the connection terminal 32 is entirely connected to the end terminal 24 from the start terminal 21 to the center terminal 32. In particular, Is extended to the inner loop pattern 33 including the outer loop pattern 31 so that the wireless communication efficiency can be maximized.

At this time, the second mode wireless communication 50 is extended with the outer loop pattern 31 and the inner loop pattern 33 to be able to guarantee the non-contact magnetic induction coupling power doubled will be.

The first mode wireless communication 40 may be an NFC or a Radio Frequency Identification and the second mode wireless communication 50 may be an MST (Magnetic Secure Transmission) or a WPT (Wireless Power Transfer) The first mode wireless communication 40 may be MST or WPT and the second mode wireless communication 50 may be Near Field Communication (NFC) ) Or an RFID (Radio Frequency Identification).

The first mode wireless communication 40 may be NFC or RFID and the second mode wireless communication 50 may be MST or WPT, or vice versa, depending on the communication environment, The present invention is not limited thereto.

Specifically, NFC, RFID, and MST are already known, and data can be transmitted in an external terminal period in a frequency band of 13.56 to 15 MHz at a distance of about 10 to 40 cm, and WPT is an electromagnetic induction principle, A magnetic field is formed by flowing a current according to the current, and the portable terminal is placed on the magnetic field to allow the battery to be charged in the 100 to 200 kHz band.

5B, the first mode wireless communication 40 may be implemented with an L1 value which is the non-contact magnetic induction coupling force of the outer loop pattern 31 itself between the start terminal 21 and the common terminal 23 While the second mode wireless communication 50 is configured to transmit the L2 value by the inner loop pattern 33 between the start terminal 21 and the end terminal 24 as well as the outer loop pattern 31 ) L1 value of the non-contact magnetic inductive coupling force of the wireless communication efficiency can be doubled.

As described above, according to the present invention, not only the second mode wireless communication 50 is extended to the outer loop pattern 31 as well as the inner loop pattern 33, but the wireless communication efficiency is doubled as well as the inner loop pattern 33 and the outer loop pattern 31 can be reduced so that the total occupied space can be greatly reduced.

FIG. 6A is a plan view showing a wireless communication dual antenna for a portable terminal according to an embodiment of the present invention, and FIG. 6B is an equivalent circuit diagram illustrating a wireless communication dual antenna for a portable terminal according to an embodiment of the present invention.

6A and 6B, a wireless communication dual antenna according to the present invention includes a flexible base film 10, a flexible antenna 10, A connecting pattern 32 extending from the outer loop pattern 31 to the inside of the base film 10 and a connecting pattern 32 extending from the connecting pattern 32 to the center of the base film 10 An inner loop pattern 33 connected to the outer end terminal 24 after being wound toward the outer circumferential surface of the lead terminal 21 and a common terminal 23 joined to the connection pattern 32 and led out to the outside, And an auxiliary terminal 22 disposed between the common terminal 23 and the end terminal 24. [

The second mode wireless communication 50 includes an outer loop pattern 31 extending from the auxiliary terminal 22 including the start terminal 21 to the end terminal 24 via the connection pattern 32, 33).

As shown in FIG. 6A, the wireless communication dual antenna for a portable terminal according to the present invention includes a first mode wireless communication 40 and a second mode wireless communication 50 that are wound (patterned) on a base film 10 And the common terminal 23 is joined to the connection pattern 32 in a state in which the connection pattern 32 is entirely formed from the start terminal 21 to the end terminal 24 without being formed independently. The second mode wireless communication 50 is extended to the inner loop pattern 33 including the outer loop pattern 31 so that the wireless communication efficiency can be maximized.

At this time, the second mode wireless communication 50 is extended with the outer loop pattern 31 and the inner loop pattern 33 to be able to guarantee the non-contact magnetic induction coupling power doubled will be.

The first mode wireless communication 40 may be NFC or RFID and the second mode wireless communication 50 may be MST or WPT. On the other hand, the first mode wireless communication 40 may be characterized in that, May be MST or WPT, and the second mode wireless communication 50 may be NFC or RFID.

The first mode wireless communication 40 may be NFC or RFID and the second mode wireless communication 50 may be MST or WPT, or vice versa, depending on the communication environment, The present invention is not limited thereto.

Specifically, NFC, RFID, and MST are already known, and data can be transmitted in an external terminal period in a frequency band of 13.56 to 15 MHz at a distance of about 10 to 40 cm, and WPT is an electromagnetic induction principle, A magnetic field is formed by flowing a current according to the current, and the portable terminal is placed on the magnetic field to allow the battery to be charged in the 100 to 200 kHz band.

On the other hand, the first mode wireless communication 40 is a non-contact magnetic induction coupling force of the outer loop pattern 31 itself between the start terminal 21, the auxiliary terminal 22 and the common terminal 23 as shown in Fig. L2 mode communication between the start terminal 21, the auxiliary terminal 22 and the end terminal 24, as shown in FIG. 6B, while the second mode wireless communication 50 can be implemented with the L1 value The magnitude of the radio communication efficiency can be doubled by the expanded non-contact magnetic induction coupling force by combining the L2 value of the outer loop pattern 31 and the L1 value of the outer loop pattern 31. [

As described above, according to the present invention, not only the second mode wireless communication 50 is extended to the outer loop pattern 31 as well as the inner loop pattern 33, but the wireless communication efficiency is doubled as well as the inner loop pattern 33 and the outer loop pattern 31 can be reduced so that the total occupied space can be greatly reduced.

At this time, when the wireless communication dual antenna of the present invention is connected to the main circuit board in the portable terminal, the auxiliary terminal 22 can be easily and compatibly connected even if the design for connecting the existing four terminals is not changed. will be.

On the other hand, the base film 10 may be a polyimide film, a PET film, or a PVC film, and may be patterned by a pattern line of the common terminal 23 joined to the connecting pattern 32 and a pattern line May be patterned on the upper surface, the lower surface, or both surfaces of the base film 10 through a via hole or the like so as not to cross each other.

The present invention can be used in a portable terminal industry field such as a tablet PC and a smart phone.

10: Base film 21: Start terminal
22: auxiliary terminal 23: common terminal
24: end terminal 31: outer loop pattern
32: connection pattern 33: inner loop pattern
40: first mode wireless communication 50: second mode wireless communication

Claims (5)

An outer loop pattern 31 which is wound from the edge of the base film 10 inwardly starting from an outer start terminal 21 and an outer loop pattern 31 extending from the outer loop pattern 31 to the base A connecting pattern 32 extending to the inside of the film 10 and an inner loop pattern 32 connected to the outer end terminal 24 after being wound from the connecting pattern 32 to the center of the base film 10, (33), and a common terminal (23) joined to the connection pattern (32) and drawn out to the outside,
The outer loop pattern 31 from the start terminal 21 to the common terminal 23 implements the first mode wireless communication 40,
The inner loop pattern 33 along with the outer loop pattern 31 extending from the start terminal 21 to the end terminal 24 through the connection pattern 32 is expanded and implemented as the second mode wireless communication 50. [ and,
The common terminal 23 is disposed between the start terminal 21 and the end terminal 24,
Further comprising an auxiliary terminal (22) joined to the start terminal (21) and disposed between the common terminal (23) and the end terminal (24)
The second mode wireless communication 50 includes the outer loop pattern 31 extending from the auxiliary terminal 22 including the start terminal 21 to the end terminal 24 via the connection pattern 32, And the inner loop pattern (33). delete The method according to claim 1,
The second mode wireless communication 50 is expanded and multiplied together with the outer loop pattern 31 and the inner loop pattern 33 to ensure a non-contact magnetic induction coupling power doubled A wireless communication dual antenna for a portable terminal. The method of claim 3,
The first mode wireless communication 40 is Near Field Communication (NFC) or Radio Frequency Identification (RFID)
Wherein the second mode wireless communication (50) is MST (Magnetic Secure Transmission) or WPT (Wireless Power Transfer). The method of claim 3,
The first mode wireless communication 40 may be MST (Magnetic Secure Transmission) or WPT (Wireless Power Transfer)
Wherein the second mode wireless communication (50) is an NFC (Near Field Communication) or an RFID (Radio Frequency Identification).

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