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WO2022131819A1 - Module d'antenne et dispositif de communication sans fil le comprenant - Google Patents

Module d'antenne et dispositif de communication sans fil le comprenant Download PDF

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Publication number
WO2022131819A1
WO2022131819A1 PCT/KR2021/019186 KR2021019186W WO2022131819A1 WO 2022131819 A1 WO2022131819 A1 WO 2022131819A1 KR 2021019186 W KR2021019186 W KR 2021019186W WO 2022131819 A1 WO2022131819 A1 WO 2022131819A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation pattern
pattern
radiation
antenna module
molded product
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2021/019186
Other languages
English (en)
Korean (ko)
Inventor
김영태
박인호
김유진
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kespion Co Ltd
Original Assignee
EMW Co Ltd
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 EMW Co Ltd filed Critical EMW Co Ltd
Publication of WO2022131819A1 publication Critical patent/WO2022131819A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
    • 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 wireless communication device including the same, and more particularly, to an antenna module capable of improving radiation efficiency by optimizing the area of a radiation pattern formed on one surface of an injection-molded product in a limited space, and a wireless communication device including the same It relates to a communication device.
  • wireless communication devices such as mobile phones, tablet PCs, notebook PCs, and PDA's, and accordingly, antennas for 3G (LTE), 4G (LTE-A), 5G communication, WiFi antenna for wireless local area network, Bluetooth (Bluetooth) antenna, NFC antenna, GPS receiving antenna, wireless charging antenna, etc. various types of antennas are being used.
  • NFC Near Field Communication
  • the NFC antenna communicates using the principle of electromagnetic induction, and the NFC antenna is generally implemented as a radiation pattern in the form of a coil or loop through which current can flow.
  • NFC needs to form a wide radiation pattern area in order to increase the tag recognition rate.
  • the radiation pattern area of the NFC antenna becomes too large in a limited space inside the wireless communication device, it may cause interference to other sub-antennas for implementing WiFi and GPS. It is necessary to develop a technology to implement the radiation area.
  • the technical problem of the present invention is to provide an antenna module capable of improving radiation efficiency by optimizing the width of a radiation pattern formed on one surface of an injection-molded product in a limited space, and a wireless communication device including the same.
  • an antenna module capable of slimming a wireless communication device by reducing the thickness of the antenna module by implementing a radiation pattern included in an antenna module used in a wireless communication device in an LDS method, and a wireless communication device including the same to provide.
  • an antenna module capable of improving the radiation performance of the antenna by shielding electromagnetic waves transmitted from the outside by providing a magnetic sheet for shielding electromagnetic waves on the opposite side of the molded product on which the LDS antenna is formed, and a wireless communication device including the same to provide.
  • An antenna module injection molding; a first radiation pattern formed on one surface of the injection-molded product; and a magnetic sheet provided to cover the first radiation pattern on the other surface of the injection-molded product.
  • a terminal connection portion formed on one surface of the injection-molded product to be in contact with the first radiation pattern; and a terminal pattern formed on the other surface of the injection-molded product and electrically connected to the terminal connection part.
  • it may further include a heat dissipation sheet formed on the other side of the magnetic sheet.
  • an installation area for installing electronic components is formed on one surface of the injection-molded product, and the first radiation pattern includes: a first radiation area formed by bending a conductive line pattern a plurality of times; and a second radiation area extending from the conductive line pattern to protrude from the first radiation area along an outer periphery of the installation area.
  • the conductive line patterns of the second radiation region may be formed to have different current directions and to be spaced apart from each other.
  • the heat dissipation sheet may be formed to cover the heating element.
  • the magnetic sheet may be formed to correspond to an area of the first radiation pattern, and the heat dissipation sheet may be formed to be larger than an area of the magnetic sheet.
  • the terminal pattern may be formed to be exposed to the outside of the heat dissipation sheet on the other surface of the injection-molded product.
  • a second radiation pattern and a third radiation pattern formed along the outer periphery of the injection-molded product may be included.
  • the first radiation pattern may be an antenna pattern for near field communication (NFC)
  • the second radiation pattern and the third radiation pattern may be an antenna pattern for any one of WiFi, GPS, 3G, 4G or 5G. have.
  • first radiation pattern, the second radiation pattern, and the third radiation pattern may be formed by etching the injection-molded product and plating the etched portion.
  • a wireless communication device may include the antenna module.
  • the radiation efficiency can be improved by optimizing the width of the radiation pattern formed on one surface of the injection-molded product in a limited space.
  • FIG. 1 is a plan view for explaining an antenna module according to an embodiment of the present invention.
  • FIG. 2 is a rear view for explaining an antenna module according to an embodiment of the present invention.
  • FIG 3 is an exploded perspective view illustrating an antenna module according to an embodiment of the present invention.
  • Figure 1 is a plan view for explaining an antenna module according to an embodiment of the present invention
  • Figure 2 is a rear view for explaining an antenna module according to an embodiment of the present invention
  • Figure 3 is an embodiment of the present invention It is an exploded perspective view for explaining the antenna module according to the embodiment.
  • the antenna module according to the present embodiment is installed in a wireless communication device (not shown) to wirelessly transmit/receive data.
  • the wireless communication device may be a mobile phone, a tablet PC, a notebook PC, a PDA, or the like.
  • the antenna module may include an injection-molded product 100 , a first radiation pattern 120 , and a magnetic sheet 140 .
  • the injection-molded product 100 is a main body of the antenna module, and may be formed in a plate shape having a constant thickness.
  • the injection-molded product 100 constitutes the inside of a wireless communication device (not shown) or is used as an external case, and may be formed of an insulating material by injection molding.
  • the injection-molded product 100 may be made of a synthetic resin material such as polyester resin or polycarbonate (PC) in order to maintain weather resistance, impact resistance, and mechanical strength.
  • the first radiation pattern 120 may be formed on one surface of the injection-molded product 100 .
  • 'one side' may be 'top side' in the drawing of the injection-molded product 100 .
  • the first radiation pattern 120 is a metal pattern that radiates an electromagnetic field to the outside for communication with an external device, and may be formed by bending a conductive line pattern a plurality of times. At this time, the first radiation pattern 120 includes two terminal connection parts 131 to allow current to flow, and is configured such that a current is input to one terminal connection part 131 and output to the other terminal connection part 131 . .
  • the first radiation pattern 120 may be an antenna pattern for near field communication (NFC).
  • NFC near field communication
  • an electronic component installation region 170 for mounting an electronic component may be formed on the upper side of the injection-molded product 100 .
  • the electronic component may be a camera module.
  • the first radiation pattern 120 may include a first radiation area 123 and a second radiation area 125 .
  • the first radiation area 123 is formed by bending the conductive line pattern a plurality of times, and the second radiation area 125 extends from the conductive line pattern and extends along the outer periphery of the electronic component installation area 170 . ) may be formed to protrude outward from the.
  • the electronic component installation region 170 may be formed in a rectangular shape in which corners are curved.
  • the conductive line pattern extending from the conductive line pattern forming the first radiation area 123 is formed to be rounded along the edge of the electronic component installation area 170 and protrudes toward the side of the first radiation area 123 .
  • the second radiation region 125 is formed.
  • the radiation area of the first radiation pattern 120 can be expanded, and specifically, the tag area of the first radiation pattern 120 functioning as an NFC antenna can be expanded. .
  • the conductive line patterns of the second radiation region 125 may have different current directions and may be formed to be spaced apart from each other. In this case, the conductive line pattern is bent in the second radiation region 125 , and an angle in the current direction of the innermost conductive line pattern may be formed as an acute angle.
  • the second radiation region 125 is formed to have a relatively narrower area than the first radiation region 123 by the electronic component installation region 170 , and when the conductive line pattern is bent in the second radiation region 125 , the innermost Conductive line patterns in the poles are adjacent to each other and are formed with different current directions (opposite directions). When the current directions of adjacent conductive line patterns are formed in opposite directions, the magnetic fields become opposite directions according to the right handed screw rule and cancel each other, thereby deteriorating the radiation performance of the antenna. This is to maintain radiation performance by forming the innermost conductive lines of (125) to be spaced apart from each other.
  • the interval (b) between the innermost conductive line patterns of the second radiation region 125 may be wider than the spacing (a) between the conductive line patterns inside the first radiation region 123 .
  • the terminal pattern 133 and the terminal connection part 131 may be electrically connected through the via hole 135 .
  • the terminal pattern 133 may be formed on the other side of the injection-molded product 100 .
  • the terminal pattern 133 on the other side of the injection-molded product 100 and the terminal connection part 131 on one side of the injection-molded product 100 are connected through the via hole 135 .
  • Electrically connected to the first radiation pattern 120 through the terminal pattern 133 may be fed.
  • the terminal pattern 133 may be electrically contacted with the PCB board provided outside the antenna module by a contact means (C-Clip, etc.), so that power can be supplied to the first radiation pattern 120 by the PCB.
  • the terminal pattern 133 may be formed to be exposed to the outside of the heat dissipation sheet 150 to be described later on the other surface of the injection-molded product 100 .
  • a heat dissipation sheet 150 which will be described later, is provided on the other side of the injection molded product 100.
  • the heat dissipation sheet 150 completely covers the terminal pattern 133, it may be difficult to feed power by the PCB, This is to expose a portion of the terminal pattern 133 to the outside of the heat dissipation sheet 150 so that power supply through the PCB can be smoothly performed.
  • the second radiation pattern 210 and the third radiation pattern 230 may be formed along the outer periphery of the injection-molded product 100 , and the second radiation pattern 210 , the third radiation pattern 230 , and the fourth radiation pattern may be formed.
  • the pattern 250 may be an antenna pattern for any one of WiFi, GPS, 3G, 4G, or 5G.
  • the second radiation pattern 210 may be formed below the first radiation pattern 120
  • the third radiation pattern 230 is spaced apart from the second radiation pattern 210 to be spaced apart from the first radiation pattern 120 .
  • the fourth radiation pattern 250 may be formed to be spaced apart between the second radiation pattern 210 and the third radiation pattern 230 below the first radiation pattern 120 .
  • the second radiation pattern 210 , the third radiation pattern 230 , and the fourth radiation pattern 250 may be electrically connected to a terminal pattern formed on the other side of the injection-molded product 100 through a via hole.
  • the pattern length of the second radiation pattern 210 may be longer than that of the third radiation pattern 230 and the fourth radiation pattern 250 .
  • the second radiation pattern 210 is an antenna for any one of 3G, 4G, or 5G
  • the third radiation pattern 230 is an antenna for WiFi
  • the fourth radiation pattern 250 is an antenna for GPS.
  • the magnetic sheet 140 may be provided to cover the first radiation pattern 120 on the other surface of the injection-molded product 100 .
  • 'the other side' may be the 'rear side' of the injection-molded product 100 .
  • the magnetic sheet 140 may be attached to the other surface of the injection-molded product 100 via the pressure-sensitive adhesive sheet 160 .
  • the magnetic sheet 140 is a sheet made of a high permeability material, and shields electromagnetic waves generated from the first radiation pattern 120 to focus in a desired direction, or is disposed on the other side of the injection-molded product 100 . It is possible to improve the radiation performance of the antenna by suppressing electromagnetic wave interference by shielding electromagnetic waves generated from electronic components such as PCBs.
  • the magnetic sheet 140 may include ferrite.
  • the magnetic sheet 140 is used as a single material such as a magnetic alloy or a ferrite sintered body, or by mixing magnetic metal powder and/or ferrite powder with an insulating resin, rubber-based component, ceramic or non-magnetic metal, etc. It can be used in the form of a composite material molded by a method such as casting.
  • the magnetic sheet 140 may be formed to have the same shape and area to correspond to the area of the first radiation pattern 120 .
  • the magnetic sheet 140 is formed to be larger than the area of the first radiation pattern 120 , the second radiation pattern 210 or the second radiation pattern 210 around the first radiation pattern 120 by the magnetic field of the magnetic sheet 140 .
  • the radiation pattern 230 can be affected, and when the magnetic sheet 140 is formed to be smaller than the area of the first radiation pattern 120 , the electromagnetic wave shielding effect is lowered, so that the first radiation pattern 120 as an NFC antenna This is because radiation performance may decrease.
  • the magnetic sheet 140 may be formed to have the same shape and area to correspond to the area of the first radiation region 123 . Since the magnetic flux density of the first radiation area 123 is higher than that of the second radiation area 125 and the first radiation area 123 is wider than that of the second radiation area 125 , even in this case, the magnetic sheet This is because the electromagnetic wave shielding effect by 140 can be obtained to some extent and the cost of manufacturing the magnetic sheet 140 can be reduced.
  • the magnetic sheet 140 is disposed to be spaced apart from the first radiation pattern 120 with the injection-molded product 100 interposed therebetween. In this way, the magnetic sheet 140 is not directly attached to the first radiation pattern 120 .
  • the shielding performance of electromagnetic waves can be improved, and accordingly, the antenna performance of the first radiation pattern 120 can be improved.
  • an electronic component such as a PCB may be disposed on the other side of the injection-molded product 100 , and antenna performance may be deteriorated due to the metal material of the PCB.
  • the magnetic sheet 140 may be directly attached to the first radiation pattern 120 , but since the magnetic sheet 140 also contains a metal component, the magnetic sheet 140 is in contact with the first radiation pattern 120 . If it is, it may affect the antenna performance.
  • the first radiation pattern 120 and the magnetic sheet 140 are disposed between the first radiation pattern 120 and the magnetic material sheet 140 by arranging the injection-molded product 100 in the middle without directly attaching the magnetic material sheet 140 to the first radiation pattern 120 . It is possible to improve the antenna performance by forming a space.
  • the heat dissipation sheet 150 may be formed on the other side of the magnetic sheet 140 . Specifically, the heat dissipation sheet 150 may be formed on the other surface of the magnetic sheet 140 formed on the other surface of the injection-molded product 100 .
  • the magnetic sheet 140 and the heat dissipation sheet 150 may be manufactured in the form of a composite sheet through a pressing process after laminating with an adhesive.
  • the heat dissipation sheet 150 may be formed in the same shape to correspond to the magnetic sheet 140 .
  • the heat dissipation sheet 150 serves to prevent heat generated from the heating element 190 outside the antenna module from being transmitted to the first radiation pattern 120 formed on one surface of the injection-molded product 100 , and the heat dissipation sheet 150 has thermal conductivity It can be formed of a material with excellent heat dissipation and excellent heat dissipation ability.
  • the heat dissipation sheet 150 may be formed of copper (Cu), aluminum (Al), or graphite.
  • the other side of the heat dissipation sheet 150 may be provided with a heating element 190 in contact with the other surface of the heat dissipation sheet 150 , and the heat dissipation sheet 150 may be formed to cover the heating element 190 .
  • the heating element 190 may be various electronic components such as a PCB and an application processor (AP) provided in a wireless communication device.
  • the heat dissipation sheet 150 may be provided with an area larger than that of the magnetic sheet 140 to completely cover the magnetic sheet 140 .
  • the first radiation pattern 120 , the second radiation pattern 210 , and the third radiation pattern 230 may be formed by etching at least a portion of the injection-molded product 100 in a predetermined shape, and plating the etched portion. .
  • the injection molding 100 is formed of a material containing a non-conductive and chemically stable heavy metal complex, and a part of the injection molding 100 is exposed to a laser such as a UV (Ultra Violet) laser, an excimer laser, etc. break the chemical bond of the metal seed to expose it.
  • a laser such as a UV (Ultra Violet) laser, an excimer laser, etc. break the chemical bond of the metal seed to expose it.
  • a method of metalizing the injection-molded product 100 to form a conductive material in the laser-exposed portion of the injection-molded product 100 .
  • a wireless communication device (not shown) including the above-described antenna module is disclosed.
  • the wireless communication device may include the above-described antenna module, camera module, and electronic components such as a PCB in a metal case, and may wirelessly transmit/receive data through the antenna module.
  • the antenna module included in this embodiment is the same as the antenna module described in the previous embodiment, a detailed description will be replaced with that of the previous embodiment.
  • the radiation efficiency can be improved by optimizing the width of the first radiation pattern 120 formed on one surface of the injection-molded product 100 in a limited space.
  • the magnetic sheet 140 for shielding electromagnetic waves on the opposite surface of the injection-molded product 100 on which the radiation pattern is formed, electromagnetic waves transmitted from the outside can be shielded to improve the radiation performance of the antenna.
  • the first radiation pattern 120 , the second radiation pattern 210 , and the third radiation pattern 230 included in the antenna module used in the wireless communication device are implemented in the LDS method to make the thickness of the antenna module thin.
  • a communication device (not shown) can be made slim.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un module d'antenne et un dispositif de communication sans fil le comprenant et, plus précisément, un module d'antenne et un dispositif de communication sans fil le comprenant, qui peuvent améliorer le rendement de rayonnement en optimisant, dans un espace limité, la largeur d'un motif de rayonnement formé sur une surface d'un produit moulé par injection.
PCT/KR2021/019186 2020-12-17 2021-12-16 Module d'antenne et dispositif de communication sans fil le comprenant Ceased WO2022131819A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200177063A KR102278597B1 (ko) 2020-12-17 2020-12-17 안테나 모듈 및 이를 포함하는 무선 통신 디바이스
KR10-2020-0177063 2020-12-17

Publications (1)

Publication Number Publication Date
WO2022131819A1 true WO2022131819A1 (fr) 2022-06-23

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PCT/KR2021/019186 Ceased WO2022131819A1 (fr) 2020-12-17 2021-12-16 Module d'antenne et dispositif de communication sans fil le comprenant

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KR (1) KR102278597B1 (fr)
WO (1) WO2022131819A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102278597B1 (ko) * 2020-12-17 2021-07-16 주식회사 이엠따블유 안테나 모듈 및 이를 포함하는 무선 통신 디바이스

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090083247A (ko) * 2008-01-29 2009-08-03 엘지전자 주식회사 휴대 단말기
JP2014011852A (ja) * 2012-06-28 2014-01-20 Panasonic Corp 携帯端末
KR101513073B1 (ko) * 2014-04-07 2015-04-17 오상진 비정질 금속 또는 나노결정질 금속을 이용한 안테나 어셈블리 및 그 구현방법
KR101960910B1 (ko) * 2017-08-04 2019-07-17 주식회사 이엠따블유 안테나 모듈 및 이를 포함하는 휴대용 단말기
KR102177516B1 (ko) * 2020-04-22 2020-11-11 강원자석기술 주식회사 다중와이어 임베딩을 이용한 송수신 안테나 모듈
KR102278597B1 (ko) * 2020-12-17 2021-07-16 주식회사 이엠따블유 안테나 모듈 및 이를 포함하는 무선 통신 디바이스

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101275159B1 (ko) 2012-12-21 2013-06-17 일신전자 주식회사 모바일기기용 에프피시비 안테나의 제조방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090083247A (ko) * 2008-01-29 2009-08-03 엘지전자 주식회사 휴대 단말기
JP2014011852A (ja) * 2012-06-28 2014-01-20 Panasonic Corp 携帯端末
KR101513073B1 (ko) * 2014-04-07 2015-04-17 오상진 비정질 금속 또는 나노결정질 금속을 이용한 안테나 어셈블리 및 그 구현방법
KR101960910B1 (ko) * 2017-08-04 2019-07-17 주식회사 이엠따블유 안테나 모듈 및 이를 포함하는 휴대용 단말기
KR102177516B1 (ko) * 2020-04-22 2020-11-11 강원자석기술 주식회사 다중와이어 임베딩을 이용한 송수신 안테나 모듈
KR102278597B1 (ko) * 2020-12-17 2021-07-16 주식회사 이엠따블유 안테나 모듈 및 이를 포함하는 무선 통신 디바이스

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