WO2019132509A1 - Module d'antenne et terminal portable le comprenant - Google Patents

Module d'antenne et terminal portable le comprenant Download PDF

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Publication number
WO2019132509A1
WO2019132509A1 PCT/KR2018/016662 KR2018016662W WO2019132509A1 WO 2019132509 A1 WO2019132509 A1 WO 2019132509A1 KR 2018016662 W KR2018016662 W KR 2018016662W WO 2019132509 A1 WO2019132509 A1 WO 2019132509A1
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WO
WIPO (PCT)
Prior art keywords
antenna
antenna pattern
base substrate
sheet
disposed
Prior art date
Application number
PCT/KR2018/016662
Other languages
English (en)
Korean (ko)
Inventor
성원모
김영태
이가현
김남일
이경호
Original Assignee
주식회사 이엠따블유
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 이엠따블유 filed Critical 주식회사 이엠따블유
Publication of WO2019132509A1 publication Critical patent/WO2019132509A1/fr

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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
    • H01Q1/24—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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support

Definitions

  • the present invention relates to an antenna module and a portable terminal including the same, and more particularly, to an antenna module and a portable terminal including the antenna module.
  • an antenna is a device that converts an electric signal into a radio wave signal.
  • the antenna can be classified into a dielectric antenna using a dielectric property and a magnetic antenna using a magnetic property.
  • Antennas can be used for various purposes. Typically, antennas having near field communication (NFC), wireless power transmission (WPT), and magnetic security transmission (MST) Portable terminal devices.
  • NFC near field communication
  • WPT wireless power transmission
  • MST magnetic security transmission
  • Such NFC, WPT, and MST antennas are formed in a loop-shaped structure formed on a plane, and recently, a composite sheet module is applied to a cross section to form a composite antenna module in various mobile devices.
  • an object of the present invention to provide an antenna module capable of improving the radiation characteristic of an antenna.
  • an antenna module comprising: a base substrate having a plurality of through holes arranged in a first direction; a first substrate disposed on a first surface of the base substrate, A second antenna pattern disposed on a first surface of the base substrate, the second antenna pattern being disposed on a second surface of the base substrate opposite to the first surface, the first antenna pattern being located on the opposite side of the first region with respect to the through holes, A second antenna pattern disposed in the first antenna pattern, a second antenna pattern disposed in the second area, a connection pattern disposed in the through hole, the connection pattern electrically connecting the first antenna pattern and the second antenna pattern, And a second magnetic sheet disposed on a second surface of the base substrate, the second magnetic sheet overlapping the first antenna pattern.
  • the first magnetic substance sheet and the second magnetic substance sheet may partially overlap.
  • the first magnetic substance sheet and the second magnetic substance sheet may overlap in an area where the through hole is not formed.
  • the width of the first magnetic material sheet in the first direction may be greater than the width of the second magnetic material sheet in the first direction.
  • the width of the first magnetic material sheet in the first direction may be the same as the width of the base substrate in the first direction.
  • the portable terminal according to an embodiment for realizing the object of the present invention includes the one or more antenna modules described above.
  • an antenna module includes a first antenna pattern disposed on a first region of a first surface of a base substrate with respect to a base substrate, a second antenna pattern disposed on a second region of a second surface of the base substrate, It is possible to reduce the thickness of the entire antenna portion.
  • a first magnetic material sheet is disposed in a second region of a first surface of the base substrate
  • a second magnetic material sheet is disposed in a first region of a second surface of the base substrate
  • the first magnetic material sheet has a through- Is disposed only in the region where it is not. Therefore, it is possible to effectively improve the radiation performance of the antenna by disposing the magnetic sheet in a region where the first antenna pattern and the second antenna pattern do not overlap.
  • FIG. 1 is an exploded perspective view showing a conventional antenna module.
  • FIG. 2 is an exploded perspective view illustrating an antenna module according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view taken along the line I-I 'in FIG.
  • FIG. 4 is an exploded perspective view illustrating an antenna pattern and a magnetic substance sheet of an antenna module according to an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view taken along line II-II 'of FIG.
  • FIG. 6 is a graph showing a measurement result of the intensity of a magnetic field radiated from the antenna of the antenna module of FIG. 1;
  • FIG. 7 is a graph showing a result of measurement of the intensity of a magnetic field radiated from the antenna of the antenna module of FIG. 2.
  • FIG. 1 is an exploded perspective view showing a conventional antenna module.
  • a conventional antenna module includes a base substrate 10, an antenna pattern 11, and a magnetic sheet 12.
  • the base substrate 10 may be formed of a flexible circuit board. Accordingly, the antenna module may have a structure in which the antenna pattern 20 is formed on the base substrate 10 formed of polyimide or polyester.
  • the flexible circuit board is abbreviated as a soft board or an FPC (Flexible Printed Circuit), and is a kind of high reliability and optimum flexible printed circuit board made of a polyimide or polyester film as a base material, It has excellent performance and features folding, winding, tear-proof, high wiring density, light and thin.
  • the magnetic sheet 30 may be formed of a ferrite sheet, nano-crystal, or polymer.
  • a ferrite sheet can be produced by applying a slurry for producing a ferrite sheet to produce a ferrite green sheet, and then sintering the ferrite sheet.
  • the slurry for preparing the ferrite sheet may be prepared by adding a solvent and a binder to the ferrite powder.
  • the ferrite powder can be produced by various methods such as solid phase method and wet method, and the ferrite powder is a magnetic oxide, and includes hard ferrite and soft ferrite. However, the present invention is not limited to this.
  • the ferrite powder may be formed by using an acicular ferrite powder to maximize the anisotropic effect by applying a magnetic field.
  • the conventional antenna module can be formed with a simple structure of the antenna portion and the magnetic sheet composed of the base substrate 10 and the antenna pattern 11.
  • the antenna module slim there is a limitation in making the antenna module slim because of the simple structure, and there is a limitation in making the antenna module slim in accordance with the trend of the mobile terminal becoming slimmer.
  • FIG. 2 is an exploded perspective view illustrating an antenna module according to an embodiment of the present invention.
  • 3 is a cross-sectional view taken along the line I-I 'in FIG.
  • an antenna module according to an embodiment of the present invention includes an antenna unit 100 and a magnetic sheet 200.
  • the antenna unit 100 includes a base substrate 110, a first antenna pattern 120, a second antenna pattern 130, and a connection pattern 115.
  • the base substrate 110 may be formed of a flexible circuit board. Accordingly, the antenna unit 100 may have a structure in which antenna patterns 120, 115, and 130 are formed on a base substrate 110 formed of polyimide or polyester.
  • the flexible circuit board is abbreviated as a soft board or an FPC (Flexible Printed Circuit), and is a kind of high reliability and optimum flexible printed circuit board made of a polyimide or polyester film as a base material, It has excellent performance and features folding, winding, tear-proof, high wiring density, light and thin.
  • the base substrate 100 may include a plurality of through holes arranged continuously in a first direction.
  • the through holes are not formed entirely along the first direction on the base substrate 110 but are formed on a part of the base substrate 110. That is, the through holes may be arranged adjacent to both ends of the base substrate 110, and the through holes are not formed at the center of the base substrate 110.
  • connection pattern 115 is disposed in the through holes.
  • the connection pattern 115 is disposed in the through hole to electrically connect the first antenna pattern 120 and the second antenna pattern 130.
  • the first antenna pattern 120 and the second antenna pattern 130 electrically connected to each other may be arranged in a loop shape as a whole.
  • the first antenna pattern 120 and the second antenna pattern 130 may be connected to each other by the connection pattern 115 and may be formed in a loop shape starting from the center of the base substrate 110.
  • the first antenna pattern 120 is disposed on the first surface of the base substrate 110.
  • the first antenna pattern 120 is disposed in a first region of the two regions defined by the through holes of the base substrate 110. That is, in FIG. 2, the first antenna pattern 120 may be disposed in a region of the first surface of the base substrate 110 in a downward direction of the through holes.
  • connection pattern 115 electrically connects the first antenna pattern 120 and the second antenna pattern 130.
  • the connection pattern 115 may be disposed in the through hole. Accordingly, the first antenna pattern 120 and the second antenna pattern 130 may be electrically connected to each other to form a loop shape.
  • the second antenna pattern 130 is disposed on a second surface of the base substrate 110 that is opposite to the first surface.
  • the second antenna pattern 130 is disposed in a second region opposite to the first region with respect to the through holes. That is, in FIG. 2, the second antenna pattern 130 may be disposed on a second surface of the base substrate 110 in an upper direction of the through holes. Therefore, the first antenna pattern 120 and the second antenna pattern 130 may be disposed in the first area and the second area, respectively, which are defined by the through holes.
  • the loop shape formed by the first antenna pattern 120 and the second antenna pattern 130 may include a portion extending in a first direction and a portion extending in a second direction perpendicular to the first direction have.
  • the through-holes may be formed in a portion of the first antenna pattern 120 and the second antenna pattern 130 extending in the second direction, and may be arranged along the first direction. Since the connection pattern 115 is disposed in the through hole to electrically connect the first antenna pattern 120 and the second antenna pattern 130, The antenna pattern 130 is formed at the overlapping position. Therefore, the first antenna pattern 120 and the second antenna pattern 130 are not formed in the centers of the plurality of loops formed by the first antenna pattern 120 and the second antenna pattern 130 , And the through holes are not formed in this portion.
  • the magnetic substance sheet 200 may be formed of a ferrite sheet, nano-crystal, polymer, or the like.
  • a ferrite sheet can be produced by applying a slurry for producing a ferrite sheet to produce a ferrite green sheet, and then sintering the ferrite sheet.
  • the slurry for preparing the ferrite sheet may be prepared by adding a solvent and a binder to the ferrite powder.
  • the ferrite powder can be produced by various methods such as solid phase method and wet method, and the ferrite powder is a magnetic oxide, and includes hard ferrite and soft ferrite. However, the present invention is not limited to this.
  • the ferrite powder may be formed by using an acicular ferrite powder to maximize the anisotropic effect by applying a magnetic field.
  • the magnetic substance sheet 200 may include a first magnetic substance sheet 210 and a second magnetic substance sheet 220.
  • the first magnetic substance sheet 210 is disposed on the first surface of the base substrate 110.
  • the first magnetic substance sheet 210 is disposed in the second region of the first surface of the base substrate 110.
  • the first magnetic substance sheet 210 may be disposed on the same plane as the first antenna pattern 120 and may be disposed to overlap the second antenna pattern 130 with the base substrate 110 interposed therebetween. have.
  • the base substrate 110 may be divided into a first through hole region and a second through hole region in which the through holes are not formed and the overlap region in which the through holes are not formed with respect to the second direction.
  • the first magnetic material sheet is disposed only in the overlap region where the through holes are not formed.
  • the second magnetic substance sheet 220 is disposed on the second surface of the base substrate 110.
  • the second magnetic material sheet 220 is disposed in the first area of the second surface of the base substrate 110.
  • the second magnetic material sheet 220 may be disposed on the same plane as the second antenna pattern 130 and may be disposed to overlap the first antenna pattern 120 with the base substrate 110 interposed therebetween. have.
  • the first magnetic material sheet 210 and the second magnetic material sheet 220 overlap each other in the overlapping area.
  • the first magnetic substance sheet 210 is not disposed in the first through hole region and the second through hole region of the base substrate 110, as shown in FIG.
  • FIG. 4 is an exploded perspective view illustrating an antenna pattern and a magnetic substance sheet of an antenna module according to an embodiment of the present invention.
  • 5 is a cross-sectional view taken along line II-II 'of FIG.
  • the first magnetic sheet 210 and the second magnetic sheet 220 of the antenna module according to an embodiment of the present invention partially overlap in the overlap area OA.
  • the second magnetic sheet (220) is formed in a rectangular shape having a first width (d1) in the second direction, and the first magnetic sheet (210) has a first width And is formed in a rectangular shape having a small second width d2.
  • the second width d2 of the first magnetic material sheet 210 may be equal to the width of the overlap area OA in the second direction.
  • the first magnetic substance sheet 210 and the second magnetic substance sheet 220 may be partially overlapped with each other with the base substrate 110 interposed therebetween.
  • the first magnetic sheet 210 and the second magnetic sheet 220 are overlapped with each other so that the radiation area of the magnetic field can be distributed more widely in the antenna module according to the embodiment of the present invention.
  • the communication area of the antenna can be widened.
  • FIG. 6 is a graph showing a measurement result of the intensity of a magnetic field radiated from the antenna of the antenna module of FIG. 1;
  • FIG. 7 is a graph showing a result of measurement of the intensity of a magnetic field radiated from the antenna of the antenna module of FIG. 2.
  • the intensity of the magnetic field radiated from the antenna of the antenna module according to the embodiment of the present invention can be compared with the intensity of the magnetic field radiated from the antenna of the conventional antenna module.
  • Y1 to Y20 in the first row in Figs. 6 and 7 indicate positions in the vertical direction
  • 1 to 12 in the first column indicate the positions in the horizontal direction
  • the numbers indicated are the intensity of the magnetic field radiated from the antenna at the designated position (Unit: mV).
  • the radiation characteristic of the antenna module shown in FIG. 6 shows the measured values after arranging the antenna module shown in FIG. 1 in a position indicated by a bold line. That is, it can be seen that the conventional antenna module is arranged from approximately Y7 to Y19.
  • the relatively strong magnetic field is emitted at the positions from Y9 to Y10 and Y13 to Y14.
  • the highest value of 143 mV is recorded at the position of (6, Y14)
  • the high value of 140 mV is recorded at the position of (6, Y9).
  • the radiation characteristic of the antenna module shown in FIG. 7 shows the measured values after arranging the antenna module shown in FIG. 2 in a position indicated by a bold line. That is, it can be seen that the antenna module according to the embodiment of the present invention is arranged from approximately Y7 to Y19.
  • the intensity of the magnetic field radiated from the antenna module according to an embodiment of the present invention is shown to emit a relatively strong magnetic field at positions Y9 to Y10 and Y13 to Y14.
  • the highest value of 145 mV is recorded at the position of (6, Y14), and is shown in red in the table.
  • the magnetic field is distributed more widely. In particular, it shows at least 13 mV at Y17 and below, and it can be seen that the magnetic field is widely distributed so that there is no region showing 12 mV. It also shows the intensity of the voltage sufficient to recognize the MST DATA at positions Y13 to Y14.
  • an antenna module includes a first antenna pattern disposed on a first region of a first surface of a base substrate with respect to a base substrate, a second antenna pattern disposed on a second region of a second surface of the base substrate, It is possible to reduce the thickness of the entire antenna portion.
  • a first magnetic material sheet is disposed in a second region of a first surface of the base substrate
  • a second magnetic material sheet is disposed in a first region of a second surface of the base substrate
  • the first magnetic material sheet has a through- Is disposed only in the region where it is not. Therefore, it is possible to effectively improve the radiation performance of the antenna by disposing the magnetic sheet in a region where the first antenna pattern and the second antenna pattern do not overlap.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)

Abstract

La présente invention concerne un module d'antenne comprenant : un substrat de base ayant de multiples trous traversants formés à l'intérieur de celui-ci et agencés dans une première direction ; un premier motif d'antenne disposé sur la première surface du substrat de base de telle sorte que le premier motif d'antenne est agencé dans la première zone de deux zones distinguées par les trous traversants ; un second motif d'antenne disposé sur la seconde surface du substrat de base, qui est opposée à la première surface de celui-ci, de telle sorte que le second motif d'antenne est agencé dans la seconde zone qui est opposée à la première zone par rapport aux trous traversants ; des motifs de connexion agencés dans les trous traversants de façon à connecter électriquement le premier motif d'antenne et le second motif d'antenne ; une première feuille de corps magnétique disposée sur la première surface du substrat de base de manière à chevaucher le second motif d'antenne ; et une seconde feuille de corps magnétique disposée sur la seconde surface du substrat de base de manière à chevaucher le premier motif d'antenne.
PCT/KR2018/016662 2017-12-29 2018-12-26 Module d'antenne et terminal portable le comprenant WO2019132509A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170183279A KR101971109B1 (ko) 2017-12-29 2017-12-29 안테나 모듈 및 이를 포함하는 휴대용 단말기
KR10-2017-0183279 2017-12-29

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WO2019132509A1 true WO2019132509A1 (fr) 2019-07-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023283509A1 (fr) * 2021-07-07 2023-01-12 Google Llc Structure d'antenne nfc pour amélioration de rayonnement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101282268B1 (ko) * 2013-01-03 2013-07-10 에이큐 주식회사 Nfc 소형화 안테나
KR101321874B1 (ko) * 2013-05-31 2013-10-28 에이큐 주식회사 Nfc 소형화 안테나 및 이를 이용한 rfid 태그
KR101595026B1 (ko) * 2014-05-16 2016-02-26 권석근 Nfc 안테나용 에프피씨비(fpcb) 및 이의 제조 방법
JP2016225675A (ja) * 2015-05-27 2016-12-28 デクセリアルズ株式会社 アンテナ装置の製造方法、及びアンテナ装置
KR101795959B1 (ko) * 2016-08-12 2017-11-10 주식회사 이엠따블유 자성체 시트의 상면 및 하면에 형성된 안테나 패턴을 포함하는 안테나

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170084794A (ko) 2016-01-13 2017-07-21 엘에스엠트론 주식회사 안테나 모듈

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101282268B1 (ko) * 2013-01-03 2013-07-10 에이큐 주식회사 Nfc 소형화 안테나
KR101321874B1 (ko) * 2013-05-31 2013-10-28 에이큐 주식회사 Nfc 소형화 안테나 및 이를 이용한 rfid 태그
KR101595026B1 (ko) * 2014-05-16 2016-02-26 권석근 Nfc 안테나용 에프피씨비(fpcb) 및 이의 제조 방법
JP2016225675A (ja) * 2015-05-27 2016-12-28 デクセリアルズ株式会社 アンテナ装置の製造方法、及びアンテナ装置
KR101795959B1 (ko) * 2016-08-12 2017-11-10 주식회사 이엠따블유 자성체 시트의 상면 및 하면에 형성된 안테나 패턴을 포함하는 안테나

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023283509A1 (fr) * 2021-07-07 2023-01-12 Google Llc Structure d'antenne nfc pour amélioration de rayonnement

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