KR101723843B1 - Portable electronic appliance - Google Patents

Portable electronic appliance Download PDF

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Publication number
KR101723843B1
KR101723843B1 KR1020150129372A KR20150129372A KR101723843B1 KR 101723843 B1 KR101723843 B1 KR 101723843B1 KR 1020150129372 A KR1020150129372 A KR 1020150129372A KR 20150129372 A KR20150129372 A KR 20150129372A KR 101723843 B1 KR101723843 B1 KR 101723843B1
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KR
South Korea
Prior art keywords
antenna
metal cover
portable terminal
radiation patch
slit
Prior art date
Application number
KR1020150129372A
Other languages
Korean (ko)
Other versions
KR20170032499A (en
Inventor
장정욱
박종진
안동호
Original Assignee
주식회사 아이엠텍
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Priority to KR1020150129372A priority Critical patent/KR101723843B1/en
Publication of KR20170032499A publication Critical patent/KR20170032499A/en
Application granted granted Critical
Publication of KR101723843B1 publication Critical patent/KR101723843B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)

Abstract

The present invention is characterized in that the metal cover 10 is divided by the slit S into the upper radiation patch 10a and the under radiation patch 10b and at the same time the first resonance capacitor C1 which is the resonance capacitor C, Power is supplied to the short range wireless transmitter 100 via the metal cover 10 with the upper radiation patch 10a and the under radiation patch 10b constituting a closed circuit by the connecting means C2 and the connecting means 13 A magnetic field is generated by flowing a current through the transmission antenna TX and this magnetic field can not transmit the metal cover 10 but links the reception antenna RX of the portable terminal 200 through the slit S in all directions And it is an object of the present invention to provide a portable terminal capable of realizing near field wireless communication, that is, magnetic induction, charging of a wireless tag, a microcrystalline solution or a battery 20 by allowing a resonance capacitor as a resonance capacitor (C) (200).

Description

PORTABLE ELECTRONIC APPLIANCE [0002]

[0001] The present invention relates to a portable terminal, and more particularly, to a portable terminal, in which a metal cover is divided by an upper radiation patch and an under radiation patch by a slit, and an upper radiation patch and a lower radiation by a resonance capacitor and a connecting means, One side and the other side of the patch are connected to each other and further connected by a connecting means provided at the center of the slit so as to constitute a closed circuit as a whole and to extend over the slit between the first resonance capacitor and the second resonance capacitor, And a first reception antenna and a second reception antenna, wherein the first reception antenna and the second reception antenna each resonate with the first resonance capacitor and the second resonance capacitor to generate a current in the opposite direction flowing between the slits of the metal cover A large current flows through the entire metal cover without changing the intensity of the surface current throughout the slit Going to generates a strong magnetic field, as well as near the slit on the upper, radiating patch and under-emitting cell is full of metal covers divided into patch serves as a radiator to maximize the magnetic field transmission efficiency of the receiving antenna from the transmitting antenna terminal.

Generally, a portable terminal includes a smart phone, a tablet PC, a notebook, and a PDA, and the portable terminal is powered by a battery.

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

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

1, 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.

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

Referring to FIG. 2, 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 '.

3 is a rear perspective view showing the surface of the rear case 103 separated from the rear cover 103 of the mobile terminal according to the prior art document.

3, the front case 101, the rear case 102, the rear cover (or the battery cover) 103, the camera 121 ', the interface 170, the 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 to expand the functions 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. [ For example, 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 wireless Internet such as HSDPA, GSM, CDMA, WCDMA and LTE, a Bluetooth (Short Range Communication) technology, a Radio Frequency Identification (RFID) , Ultra Wideband (UWB), 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. 3, the antenna 200 is disposed on the rear cover 103, which can secure a large area without mounting electronic components.

4 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.

As shown in FIG. 3 and FIG. 4, the antenna 200 of the prior art document has a soft substrate 210, two types of patterns, and a magnetic sheet 230 as main components.

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 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 the terminals 100 at a distance of 10 cm, and is a next generation local area communication technology that is relatively focused on security because its communication distance is short and its price is low. 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.

It is necessary for the wireless charging coil 225 to be widely installed in the mobile terminal 100 so that charging can be performed irrespective of the position of the mobile terminal 100 mounted on the charging device.

In addition, in the case of the short-range wireless communication, communication with the short-range wireless transmitter is made close to communication, so communication may not be smooth according to the position of the antenna 225. Therefore, A pattern 220 is disposed.

That is, since the wireless charging and the short-range wireless communication are both performed at a close distance, they must be evenly distributed over a large area compared with the antenna for long-distance communication and are disposed on the rear cover 103 as described above.

When the wireless charging coil 225 and the antenna for wireless communication 225 are disposed at the same position, interference may occur between them. Therefore, the wireless charging coil 225 and the wireless communication antenna 225 can be separately arranged in the first area and the second area.

Although the high-frequency pattern 220 is shown in the first region and the low-frequency pattern 225 is shown in the second region, the positions of the low-frequency patterns 225 are not limited thereto. The patterns are formed in a vortex shape to cover a large area.

However, in the mobile terminal related to the prior art document, when the back cover 103 is made of metal, an induction current can not flow through the wireless charging coil 225, and wireless charging can not be realized at all.

Such a problem has a limitation that the portable terminal can not keep up with the trend of changing to metal.

Korean Patent Publication No. 10-2013-0113222

An object of the present invention is to provide a semiconductor device in which one side and the other side of an upper radiation patch and an under radiation patch are connected by an inductor, a connection patch or a capacitor, which is a resonance capacitor and connecting means, A first receiving antenna which is connected to the slit by connecting means provided on the inner side of the slit so as to constitute a closed circuit as a whole and which is arranged to span the slit between the first resonant capacitor and the second resonant capacitor with the connecting means as the center, 2 reception antenna, and the first reception antenna and the second reception antenna each resonate with the first resonance capacitor and the second resonance capacitor, respectively, so that a current in the opposite direction flowing between the slits of the metal cover causes a surface current A large current flows through the entire metal cover without changing the strength of the slit, Upper as well as radiation is emitted under the patches and the mobile terminal capable of maximizing transmission efficiency of a magnetic field to the receiving antenna from the transmitting antenna to serve the whole of the metal cover compartment with a patch radiator to provide.

An object of the present invention is to provide a method of manufacturing a semiconductor device, in which a metal cover is divided by an upper radiation patch and an under radiation patch by a slit, and an upper radiation patch and an under radiation patch constitute a closed circuit by a first resonance capacitor, a second resonance capacitor, A magnetic field is generated when a current is supplied to a short-range wireless transmitter through a metal cover, and a magnetic field is generated. This magnetic field can not transmit the metal cover, In particular, the present invention provides a mobile terminal capable of short-range wireless communication, that is, magnetic induction, charging of a wireless tag, a microcrystalline solution, or a battery by enabling resonance of the main resonator as a resonance capacitor.

It is an object of the present invention to provide a portable terminal capable of forming an induction current by linking a receiving antenna of a portable terminal in all directions via a slit instead of a magnetic field being transmitted through a metal cover.

It is an object of the present invention to enable resonance in each of the main resonators as the first resonant capacitor and the second resonant capacitor, thereby enabling various applications of short range wireless communication, that is, charging of a wireless tag, And a portable terminal.

According to an aspect of the present invention,

A portable terminal having a receiving antenna interlocked with a transmitting antenna of a short range wireless transmitter, and a metal cover covering and protecting the battery,

Wherein the metal cover is divided into an upper radiation patch and an under radiation patch by having a slit extending over the receiving antenna,

The upper radiation patch and the under radiation patch are connected by a first resonance capacitor and a second resonance capacitor respectively provided on one side and the other side of the slit and connected by a connecting means provided inside the slit to constitute a closed circuit,

Wherein the receiving antenna comprises a first receiving antenna and a second receiving antenna positioned to respectively extend over the slits between the first resonant capacitor and the second resonant capacitor with the connecting means as a center, And the short-range wireless communication is allowed to operate as a radiator while being interlocked with the transmission antenna of the transmitter.

According to the present invention, the metal cover is divided by the slit into the upper radiation patch and the under radiation patch, and one side and the other side of the upper radiation patch and the under radiation patch are connected by the inductor, the connection patch or the capacitor which is the resonance capacitor and the connecting means, Further comprising a first receiving antenna which is connected by connection means provided inside the slit and constitutes a closed circuit as a whole and which is positioned so as to span the slits between the first resonant capacitor and the second resonant capacitor with the connecting means as the center, And the first reception antenna and the second reception antenna each resonate with the first resonance capacitor and the second resonance capacitor to generate the surface current through the slit by the current in the opposite direction flowing between the slits of the metal cover A large current flows through the entire metal cover, and a strong magnetic field is generated. Am to serve as the upper radiating patch and under radiation of the entire metal cover is divided into a radiator patch is effective to maximize the transmission efficiency of the magnetic field to the receiving antenna from the transmitting antenna.

The present invention is characterized in that the metal cover is partitioned by the slit into an upper radiation patch and an under radiation patch while the upper radiation patch and the under radiation patch constitute a closed circuit by the first resonance capacitor, the second resonance capacitor, A magnetic field is generated when a power is supplied to a short-range wireless transmitter through a metal cover and a current is supplied to the transmission antenna. This magnetic field can not transmit the metal cover, but instead links the receiving antenna of the portable terminal It is possible to form a current. Especially, by enabling resonance resonance as a resonance capacitor, short-range wireless communication, that is, magnetic induction, has an effect of enabling charging of a radio tag, a microcrystalline solution or a battery.

The present invention has an effect that the induction current can be formed by linking the reception antenna of the portable terminal all over the slit through the slit instead of the magnetic field not passing through the metal cover.

The present invention enables resonance in each of the main resonators as the first resonance capacitor and the second resonance capacitor, thereby enabling short-range wireless communication, that is, magnetic induction capable of variously applying radio tags, .

1 is a block diagram of a mobile terminal related to the prior art document.
2 is a rear perspective view of a mobile terminal according to the prior art document.
3 is a rear perspective view showing a surface of a rear case of a mobile terminal according to the prior art, with the rear cover removed.
4 is a plan view showing an antenna according to a prior art document attached to a back cover of a mobile terminal;
5A is a side elevational view for explaining a mobile terminal according to the present invention;
FIG. 5B is a principle view illustrating a transmitting antenna and a receiving antenna for explaining a portable terminal according to the present invention; FIG.
FIG. 6A is a side view for explaining operations of a transmitting antenna and a receiving antenna with a metal cover applied to a portable terminal according to a first example for explaining the present invention. FIG.
FIG. 6B is a conceptual diagram illustrating a planar and a rear surface of a metal cover for explaining operations of a transmitting antenna and a receiving antenna with a metal cover applied to a portable terminal according to a first example of the present invention. FIG.
FIG. 7A is a side view for explaining operations of a transmitting antenna and a receiving antenna with a metal cover applied to a portable terminal according to a second example of the present invention. FIG.
FIG. 7B is a conceptual diagram illustrating the planar and the rear surfaces of a metal cover for explaining the operation of a transmitting antenna and a receiving antenna with a metal cover applied to a portable terminal according to a second example for explaining the present invention. FIG.
FIG. 8A is a side view for explaining operations of a transmitting antenna and a receiving antenna with a metal cover applied to a portable terminal according to a third example for explaining the present invention. FIG.
FIG. 8B is a conceptual view illustrating a planar and a back surface of a metal cover for explaining the operation of a transmitting antenna and a receiving antenna with a metal cover applied to a portable terminal according to a third example for explaining the present invention. FIG.
FIG. 9A is a plan view and a photograph of a portable terminal and a transmitting antenna according to a fourth example of the present invention; FIG.
FIG. 9B is a partially enlarged plan view simulating the magnetic field formation between the portable terminal and the transmission antenna according to the fourth example for explaining the present invention. FIG.
FIG. 9C is a plan view showing a simulation of magnetic field formation between a portable terminal and a transmission antenna according to a fourth example for explaining the present invention. FIG.
FIG. 9D is a side view illustrating simulation of magnetic field formation between a portable terminal and a transmission antenna according to a fourth example for explaining the present invention. FIG.
FIG. 9E is a plan view for explaining operations of a transmitting antenna and a receiving antenna with a metal cover applied to a portable terminal according to a fourth example for explaining the present invention. FIG.
FIG. 9F is a graph illustrating a transmission / reception ratio between a reception antenna of a wireless terminal and a transmission antenna of a short-range wireless transmitter according to a fourth example of the present invention. FIG.
10A is a plan view illustrating a portable terminal and a transmission antenna according to a fifth example of the present invention.
FIG. 10B is a partially enlarged plan view showing a simulation of magnetic field formation between a portable terminal and a transmission antenna according to a fifth example for explaining the present invention. FIG.
FIG. 10C is a side view illustrating simulation of magnetic field formation between a portable terminal and a transmitting antenna according to a fifth example for explaining the present invention. FIG.
FIG. 10D is a graph illustrating a transmission / reception ratio between a reception antenna of a wireless terminal and a transmission antenna of a short-range wireless transmitter according to a fifth example of the present invention.
FIG. 11A is a plan view and a photograph of an experiment of a portable terminal and a transmitting antenna according to a preferred embodiment of the present invention. FIG.
FIG. 11B is a partially enlarged plan view simulating the formation of a magnetic field between a portable terminal and a transmission antenna according to a preferred embodiment of the present invention. FIG.
11C is a plan view showing a simulation of magnetic field formation between a portable terminal and a transmission antenna according to a preferred embodiment of the present invention.
11D is a side view illustrating simulation of magnetic field formation between a portable terminal and a transmission antenna according to a preferred embodiment of the present invention.
FIG. 11E is a plan view for explaining operations of a transmitting antenna and a receiving antenna with a metal cover applied to a portable terminal according to a preferred embodiment of the present invention. FIG.
FIG. 11F is a graph illustrating a transmission / reception ratio between a reception antenna of a wireless terminal and a transmission antenna of a short-range wireless transmitter according to a preferred embodiment of the present invention.
12A is a plan view showing a portable terminal and a transmitting antenna according to another preferred embodiment of the present invention.
FIG. 12B is a partially enlarged plan view simulating the formation of a magnetic field between a portable terminal and a transmission antenna according to another preferred embodiment of the present invention. FIG.
FIG. 12C is a side view illustrating simulation of magnetic field formation between a portable terminal and a transmission antenna according to another preferred embodiment of the present invention; FIG.
13 is a graph illustrating return loss between a TX antenna of a short range wireless transmitter and a receiving antenna of a portable terminal according to a preferred embodiment of the present invention.
FIG. 14A is a plan view showing a combination of a portable terminal and a receiving antenna according to the most preferred embodiment of the present invention; FIG.
FIG. 14B is a plan view showing an exploded view of a portable terminal and a receiving antenna according to the most preferred embodiment of the present invention. FIG.

A preferred embodiment of the portable terminal according to the present invention will be described with reference to the drawings. There may be a plurality of embodiments thereof, and it is possible to understand the objects, features and advantages do.

5A is a side conceptual view for explaining a portable terminal 200 according to the present invention. FIG. 5B is a diagram showing a principle of a transmitting antenna TX and a receiving antenna RX for explaining a portable terminal 200 according to the present invention. .

The portable terminal 200, such as a smart phone or a tablet PC, is designed to perform a wireless tag, a small payment, or charge the battery 20 through short-range wireless communication.

5A and 5B, the receiving antenna RX and the battery 20 interlocked with the transmitting antenna TX of the short range wireless transmitter 100 and the battery 20 are built in the portable terminal 200, A magnetic field is generated in the transmission antenna TX and a current is induced in the reception antenna RX to induce a current to generate energy. .

6A is a side view for explaining operations of a TX antenna and a RX antenna with a metal cover 10 applied to a portable terminal 200 according to a first example of the present invention, A TX antenna is disposed on the border of the metal cover 10 and a RX is disposed on the bottom of the metal cover 10 for convenience of explanation; And a metal cover 10 for explaining the operation of the transmission antenna TX and the reception antenna RX with the metal cover 10 applied to the antenna 200 being interposed therebetween.

6A, if a current is supplied to the short-range wireless transmitter 100 via the metal cover 10 and a current is supplied to the transmission antenna TX, a magnetic field is generated. However, the magnetic field is generated by the metal cover 10, The receiving antenna RX of the portable terminal 200 can not generate the induction current and thus can not realize the short-range wireless communication.

6B shows the surface current density of the metal cover 10 induced by the magnetic field in accordance with the current flowing in the transmission antenna TX. The dotted arrows on the surface of the metal cover 10 in FIG. (Eddy Current) is generated, the magnetic field is weakened, and as a result, the induction current to the receiving antenna RX can not be generated at all as shown in the back surface of the metal cover 10, will be.

7A is a side view for explaining operations of a TX antenna and a RX antenna with a metal cover 10 applied to a portable terminal 200 according to a second example of the present invention, A TX antenna is arranged on the border of the metal cover 10 and a RX is arranged on the bottom of the metal cover 10 for convenience of explanation; And a metal cover 10 for explaining the operation of the transmission antenna TX and the reception antenna RX with the metal cover 10 applied to the antenna 200 being interposed therebetween.

A magnetic field is generated when power is supplied to the short range wireless transmitter 100 through the metal cover 10 having the guide hole 11 and a current is supplied to the transmission antenna TX as shown in FIG. The magnetic field can not pass through the metal cover 10 but a small part of the magnetic field links the receiving antenna RX of the portable terminal 200 through the induction hole 11 to form an induced current, That is, it becomes possible to securely charge the wireless tag, the microcrystalline solution or the battery 20 as magnetic induction.

7B shows the surface current density of the metal cover 10 induced by the magnetic field in accordance with the current flowing in the transmission antenna TX. The dotted arrows on the surface of the metal cover 10 indicate the current Only a very small part of the magnetic field through the induction hole 11 is induced as shown on the back surface of the metal cover 10 to induce a very small amount of induced current to the receiving antenna RX 5%), so that it can be confirmed that the wireless tag, the microcrystalline solution or the battery 20 can not be smoothly charged.

8A is a side view for explaining operations of a TX antenna and a RX antenna with a metal cover 10 applied to a portable terminal 200 according to a third example of the present invention, A TX antenna is disposed on the boundary of the metal cover 10 and a RX is disposed on the bottom of the metal cover 10 for convenience of explanation; And a metal cover 10 for explaining the operation of the transmission antenna TX and the reception antenna RX with the metal cover 10 applied to the antenna 200 being interposed therebetween.

When electric power is supplied to the short range wireless transmitter 100 with the metal cover 10 having the guide hole 11 and the open hole 12 interposed therebetween so that current flows through the transmission antenna TX as shown in FIG. The magnetic field is not transmitted through the metal cover 10 but is linked to the receiving antenna RX of the portable terminal 200 through the induction hole 11 and the open hole 12 in all directions, So that it becomes possible to charge the wireless tag, the microcrystalline solution or the battery 20 by short-range wireless communication, that is, magnetic induction.

The arrow 1 (a1) in FIG. 8B indicates the surface current density of the metal cover 10 and the current direction (the transmitting antenna The current flowing in the direction of the current flowing through the surface of the metal cover 10 facing the transmission antenna TX is indicated by the arrow 2 The current flowing through the back surface of the metal cover 10 facing the receiving antenna RX through the open hole 12 is reflected by the receiving antenna RX The current flowing in the transmission antenna TX indicates the current flowing into the back surface of the metal cover 10 facing the reception antenna RX , The current flowing to the receiving antenna (RX) of the metal cover (10) is transmitted to the transmitting antenna (TX) of the near-field wireless transmitter 100, a magnetic field is generated when the current flows through the transmission antenna TX of the short-range wireless transmitter 100, A wireless tag, a microcrystalline solution, or a battery 20 (a wireless tag) by linking the receiving antenna RX of the portable terminal 200 in all directions through the induction hole 11 and the open hole 12 to form a strong induction current. ) Can be guaranteed.

9A and 9B are a plan view and an experiment photograph showing a portable terminal 200 and a transmitting antenna TX according to a fourth example of the present invention. FIG. 9C is a partially enlarged plan view illustrating a magnetic field formation between the portable terminal 200 and the transmission antenna TX according to a fourth example of the present invention. FIG. 9D is a side view illustrating simulation of magnetic field formation between the portable terminal 200 and the transmission antenna TX according to a fourth example for explaining the present invention, and FIG. 9E is a side view A plan view for explaining the operation of the transmission antenna TX and the reception antenna RX with the metal cover 10 applied to the portable terminal 200 according to the fourth example for the convenience of description S) as a boundary, (RX) of the portable terminal 200 according to the fourth embodiment for explaining the present invention and the transmission antenna TX of the short range wireless transmitter 100 Reception ratio of the mobile station.

FIG. 10A is a plan view showing a portable terminal 200 and a TX antenna according to a fifth example of the present invention. FIG. 10B is a diagram illustrating a portable terminal 200 according to a fifth example of the present invention, 10C is a partial enlarged plan view simulating the formation of a magnetic field between the transmission antennas TX. FIG. 10C illustrates a simulation of the magnetic field formation between the portable terminal 200 and the transmission antenna TX according to the fifth example for explaining the present invention. And FIG. 10D is a graph showing the transmission / reception ratio between the reception antenna RX of the portable terminal 200 and the transmission antenna TX of the short-range wireless transmitter 100 according to the fifth example for explaining the present invention .

The portable terminal 200 according to the fourth and fifth examples for explaining the present invention can be applied to a transmitter antenna 100 of a short range wireless transmitter 100 as shown in FIGS. 5A, 9A to 9E and 10A to 10C And a metal cover 10 for covering and protecting the battery 20 and the reception antenna RX interlocked with the reception antenna RX and the metal cover 10. The metal cover 10 includes a slit S And is divided into an upper radiation patch 10a and an under radiation patch 10b.

As described above, the portable terminal 200 according to the fourth and fifth examples is formed by the current in the opposite direction flowing between the slits S of the metal cover 10, as shown in Figs. 9B to 9E and 10B to 10C A strong electromagnetic field is generated only in the local region where the slit S exists and only the vicinity of the slit S acts as a radiator so that the efficiency of transmitting the magnetic field from the transmitting antenna TX to the receiving antenna RX It is holding.

As a result of measuring the transmission / reception ratio at a distance of, for example, 30 mm from the transmission antenna TX of the short-range wireless transmitter 100 and the reception antenna RX operated by the NFC, as shown in FIGS. 9F and 10D, The energy transmission / reception ratio of 45 dB is reduced to about 15 dB (1/64 times) compared to -29.5 dB, which is the radio communication transmission / reception ratio, and short-range wireless communication can not be realized.

11A and 11B are a plan view and an experimental photograph showing a portable terminal 200 and a TX antenna according to a preferred embodiment of the present invention. FIG. 11C is a plan view showing a simulation of magnetic field formation between the portable terminal 200 and the transmission antenna TX according to the preferred embodiment of the present invention, and FIG. 11D FIG. 11E is a side view showing a simulation of the magnetic field formation between the portable terminal 200 and the TX antenna according to the preferred embodiment of the present invention. FIG. And is a plan view for explaining the operation of the transmission antenna TX and the reception antenna RX with the cover 10 therebetween with the slit S as a boundary for convenience of explanation W also shown], FIG. 11f is a graph showing the transmission rate of between transmit antennas (TX) of the receiving antenna (RX) and a short-range radio transmitter 100 of the portable terminal 200 according to an embodiment of the present invention.

FIG. 12A is a plan view illustrating a portable terminal 200 and a TX according to another embodiment of the present invention. FIG. 12B is a diagram illustrating a portable terminal 200 and a TX antenna TX according to another preferred embodiment of the present invention. FIG. 12C is a side view illustrating simulation of magnetic field formation between the portable terminal 200 and the transmission antenna TX according to another preferred embodiment of the present invention. Referring to FIG.

The portable terminal 200 according to the preferred embodiment and the other embodiment of the present invention may be applied to the transmit antenna TX of the short range wireless transmitter 100 as shown in FIGS. 5A, 11A to 11E and 12A to 12C And a metal cover 10 which covers and protects the receiving antenna RX and the battery 20 that are interlocked with each other and the metal cover 10 has a slit S extending over the receiving antenna RX, And the upper radiation patch 10a and the under radiation patch 10b are connected by a resonance capacitor C provided on one side of the slit S and connected to the lower radiation patch 10b by a slit S to constitute a closed circuit to allow the metal cover 10 to operate as a radiator while interlocked with the transmission antenna TX of the short range wireless transmitter 100 to perform short range wireless communication .

The connecting means 13 may be an inductor 13a, a connecting patch 13b or a capacitor 13c. The inductor 13a, the connecting patch 13b or the capacitor 13c may be connected to the upper radiation patch 10a, And the under radiation patches 10b are connected to form a closed circuit.

The connection patch 13b can be formed by machining to directly connect the upper radiation patch 10a and the under radiation patch 10b when the slit S is provided to the metal cover 10. In this case, The inductor 13a can be applied to the present invention because the inductor 13a has a low resistance value. Further, the capacitor 13c can be applied to the present invention by designing the resistance value to be low by taking advantage of a large capacitance. .

The metal cover 10 is divided by the slit S into the upper radiation patch 10a and the under radiation patch 10b and at the same time the inductor 13a which is the resonance capacitor C and the connecting means 13, The upper radiation patch 10a and the under radiation patch 10b constitute a closed circuit by the capacitor 13b or the capacitor 13c so that the current flows between the slits S A large current flows through the entire metal cover 10 without changing the intensity of the surface current over the entire slit S as shown in FIGS. 11E and 12B to 12C, so that a strong magnetic field is generated not only around the slit S The entire metal cover 10 partitioned by the upper radiation patch 10a and the under radiation patch 10b serves as a radiator to maximize the magnetic field transmission efficiency from the transmission antenna TX to the reception antenna RX.

That is, the metal cover 10 is divided by the slit S into the upper radiation patch 10a and the under radiation patch 10b, and at the same time, the upper radiation patch 10a is separated by the resonance capacitor C and the connecting means 13, A magnetic field is generated when power is supplied to the short-range wireless transmitter 100 through the metal cover 10 and a current is supplied to the transmission antenna TX while the under-radiation patch 10b constitutes a closed circuit. It is possible to link the receiving antenna RX of the portable terminal 200 in all directions via the slit S to form an induced current instead of transmitting the metal cover 10, It is possible to enable short-range wireless communication, that is, magnetic induction, to charge a wireless tag, a microcrystalline solution or the battery 20 by making pseudo resonance.

13 is a graph showing Return Losses between a TX antenna of a short range wireless transmitter 100 and a RX of a mobile terminal 200 according to a preferred embodiment of the present invention. It is confirmed that a return loss occurs between the reception antenna RX of the terminal 200 and the transmission antenna TX of the short range wireless transmitter 100 so that the slit S connected by the resonance capacitor C operates as a relay antenna .

11A and 12A, the receiving antenna RX is eccentrically disposed on one side of the metal cover 10 so as not to overlap with the position of the battery 20, thereby reducing the slimming of the portable terminal 200 Guarantee.

According to another preferred embodiment of the present invention, the metal cover 10 further includes an opening hole S1 communicating with the slit S as shown in FIG. 12A, Of course it is.

It should be noted that the receiving antenna RX may be connected to the transmitting antenna TX to wirelessly charge the battery 20 and the receiving antenna RX may be operated by the NFC.

The receiving antenna RX of the portable terminal 200 performs radio communication in a far field and serves as an Inductor Coupling System in a short distance.

For example, when the receiving antenna RX is to be connected to the transmitting antenna TX to wirelessly charge the battery 20, the receiving antenna RX is connected to the short range wireless transmitter 100 The mobile terminal 200 may be placed on the magnetic field to charge the battery 20 in the frequency band of 100 to 200 kHz or the frequency band of 6 MHz.

Further, when the receive antenna RX is operated by NFC, the frequency is 13.56 MHz, which acts as an inductor and couples with the transmit antenna TX.

In other words, if an Inductor passes around another Inductor, an Induced current is generated in the second Inductor, and using this non-contact energy transfer is the principle of NFC.

As described above, the reception antenna RX built in the portable terminal 200 according to the present invention enables short-range wireless communication to charge the battery 20 or implement an NFC tag or the like.

FIG. 14A is a plan view showing a combination of a portable terminal 200 and a receiving antenna RX according to the most preferred embodiment of the present invention. FIG. 14B is a diagram illustrating a portable terminal 200 according to the most preferred embodiment of the present invention, 11 is a plan view showing a state in which the antenna RX is disassembled.

The portable terminal 200 according to the most preferred embodiment of the present invention includes a receiving antenna RX and a battery (not shown) interlocked with a transmitting antenna TX of the short range wireless transmitter 100, as shown in FIGS. 5A, 14A, The metal cover 10 includes a slit S extending over the receiving antenna RX so as to cover the upper radiation patch 10a and the under radiation patch 10a, The upper radiation patch 10a and the under radiation patch 10b are divided by the first resonance capacitor C1 and the second resonance capacitor C2 provided on one side and the other side of the slit S, And the receiving antenna RX is connected to the first resonance capacitor C1 and the second resonance circuit 12 with the connecting means 13 as the center and connected at the same time by the connecting means 13 provided inside the slit S, A first receiving antenna RX1 and a second receiving antenna R, which are positioned so as to span the slits S between the capacitors C2, X2 to allow the metal cover 10 to operate as a radiator while being coupled to a transmission antenna TX of the short range wireless transmitter 100 to enable short range wireless communication.

The connecting means 13 may be an inductor 13a, a connecting patch 13b or a capacitor 13c. The inductor 13a, the connecting patch 13b or the capacitor 13c may be connected to the upper radiation patch 10a, And the under radiation patches 10b are connected to form a closed circuit.

The connection patch 13b can be formed by machining to directly connect the upper radiation patch 10a and the under radiation patch 10b when the slit S is provided to the metal cover 10. In this case, The inductor 13a can be applied to the present invention because the inductor 13a has a low resistance value. Further, the capacitor 13c can be applied to the present invention by designing the resistance value to be low by taking advantage of a large capacitance. .

The metal cover 10 is divided by the slit S into the upper radiation patch 10a and the under radiation patch 10b and at the same time the inductor 13a which is the resonance capacitor C and the connecting means 13, One side and the other side of the upper radiation patch 10a and the under radiation patch 10b are connected to each other by the connecting portion 13b or the capacitor 13c and further connected by the connecting means 13 provided inside the slit S A first receiving antenna RX1 and a second receiving antenna RX2 which are arranged so as to span the slits S between the first resonance capacitor C1 and the second resonance capacitor C2 with the connecting means 13 as a whole and constituting a closed circuit as a whole, The first reception antenna RX1 and the second reception antenna RX2 are connected to the first resonant capacitor C1 and the second resonant capacitor C2 by completing the most preferred embodiment of the present invention with the second reception antenna RX2. And the resonance is realized by the current in the opposite direction flowing between the slits S of the metal cover 10 A large current flows through the entire metal cover 10 without changing the intensity of the surface current over the entire slit S as shown in Figs. 11b to 11e and 12b to 12c, so that a strong magnetic field is generated around the slit S The whole metal cover 10 partitioned by the upper radiation patch 10a and the under radiation patch 10b serves as a radiator so as to maximize the efficiency of transmission of the magnetic field from the transmission antenna TX to the reception antenna RX do.

That is, the metal cover 10 is divided by the slit S into the upper radiation patch 10a and the under radiation patch 10b, and at the same time, the first resonance capacitor C1 and the second resonance capacitor (resonance capacitor) C2 and the connecting means 13 supply power to the short range wireless transmitter 100 via the metal cover 10 with the upper radiation patch 10a and the under radiation patch 10b constituting a closed circuit, A magnetic field is generated when the current flows through the antenna TX and the magnetic field is not transmitted through the metal cover 10 but is linked to the receiving antenna RX of the portable terminal 200 in all directions via the slit S It is possible to make a current, and in particular, enable resonant capacitor C as a resonant capacitor C, thereby enabling short-range wireless communication, that is, magnetic induction, charging of a wireless tag, microcrystalline solution or battery 20 and the like.

14A and 14B, the receiving antenna RX applied to the portable terminal 200 according to the most preferred embodiment of the present invention includes a flexible film F, The receiving antenna RX may be formed of a first receiving antenna RX1 and a second receiving antenna RX2 and may be used in a plurality of modes. 1 receive antenna RX1 or the second receive antenna RX2 may be given another pattern so as to be utilized in the multi-mode.

The first receiving antenna RX1 or the second receiving antenna RX2 transmits a noncontact magnetic induction coupling force in a frequency band of 13.56 MHz at a distance of approximately 10 to 40 cm from the transmitting antenna TX of the short- Near field communication (NFC) for performing short-range wireless communication with non-contact magnetic induction coupling power, Non-contact magnetic induction coupling power of 13.56 MHz band at a short distance of 10 to 200 cm from a transmission antenna (TX) (MST) for transmitting mutual data between terminals and a transmitting antenna (TX) of a short range wireless transmitter 100 to form a magnetic field by flowing current according to the electromagnetic induction principle, that is, the induction magnetic field principle (WPT) that enables the battery to be charged by a non-contact magnetic inductive coupling force that is implemented in the 100 to 200 kHz band. Of course.

The present invention can be used in a wireless communication field used for a smart phone, a tablet PC, a notebook, a PDA, and various home appliances.

100: Short range wireless transmitter TX: Transmission antenna
200: portable terminal RX: receiving antenna
RX1: first reception antenna RX2: second reception antenna
F: Flexible film P: Pattern
10: metal cover 10a: upper radiation patch
10b: under radiation patch C: resonance capacitor
C1: first resonance capacitor C2: second resonance capacitor
11: induction hole 12: open hole
S: Slit S1: An opening hole
13: connecting means 13a: inductor
13b: connection patch 13c: capacitor
20: Battery a1: Arrow 1
a2: arrow 2 a3: arrow 3
I: In point IO: In point O

Claims (4)

A portable terminal (200) having a reception antenna (RX) interlocked with a transmission antenna (TX) of a short range wireless transmitter (100) and a metal cover (10) covering and protecting a battery (20)
The metal cover 10 is divided into an upper radiation patch 10a and an under radiation patch 10b by having a slit S extending over the receiving antenna RX,
The upper radiation patch 10a and the under radiation patch 10b are connected by a first resonance capacitor C1 and a second resonance capacitor C2 respectively provided on one side and the other side of the slit S, S, and constitutes a closed circuit,
The receiving antenna RX includes a first receiving antenna RX positioned to span the slit S between the first resonance capacitor C1 and the second resonance capacitor C2 with the connecting means 13 as a center, (RX1) and a second reception antenna (RX2), the metal cover 10 is operated as a radiator while interlocking with a transmission antenna TX of the short- range wireless transmitter 100, thereby enabling short-range wireless communication (200). The method according to claim 1,
Wherein the connection means is any one of an inductor, a connection patch, and a capacitor. 3. The method according to claim 1 or 2,
Wherein the first receiving antenna RX1 is operated by any of NFC, WPT, and MST. 3. The method according to claim 1 or 2,
Wherein the second reception antenna RX2 is operated by any one of NFC, WPT, and MST.
KR1020150129372A 2015-09-13 2015-09-13 Portable electronic appliance KR101723843B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019088708A1 (en) * 2017-11-03 2019-05-09 주식회사 아모텍 Antenna module

Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2008523768A (en) * 2004-12-14 2008-07-03 インテル コーポレイション Slot antenna with MEMS varactor for resonant frequency tuning

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Publication number Priority date Publication date Assignee Title
KR101580518B1 (en) 2012-04-05 2015-12-28 엘지전자 주식회사 Antenna and mobile terminal therein
KR102119533B1 (en) * 2013-10-07 2020-06-08 주식회사 아모텍 Rear cover and portable device having the antenna

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2008523768A (en) * 2004-12-14 2008-07-03 インテル コーポレイション Slot antenna with MEMS varactor for resonant frequency tuning

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019088708A1 (en) * 2017-11-03 2019-05-09 주식회사 아모텍 Antenna module
US11251527B2 (en) 2017-11-03 2022-02-15 Amotech Co., Ltd. Antenna module

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