WO2015072568A1 - コイルアンテナの製造方法及びコイルアンテナ実装体の製造方法 - Google Patents
コイルアンテナの製造方法及びコイルアンテナ実装体の製造方法 Download PDFInfo
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- WO2015072568A1 WO2015072568A1 PCT/JP2014/080371 JP2014080371W WO2015072568A1 WO 2015072568 A1 WO2015072568 A1 WO 2015072568A1 JP 2014080371 W JP2014080371 W JP 2014080371W WO 2015072568 A1 WO2015072568 A1 WO 2015072568A1
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- Prior art keywords
- coil antenna
- coil
- antenna
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- wire
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000758 substrate Substances 0.000 claims abstract description 44
- 229910000679 solder Inorganic materials 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000005304 joining Methods 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 abstract description 12
- 230000002457 bidirectional effect Effects 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- 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
- H01Q7/06—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 with core of ferromagnetic material
-
- 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
- H01Q7/06—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 with core of ferromagnetic material
- H01Q7/08—Ferrite rod or like elongated core
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
- H05K13/046—Surface mounting
- H05K13/0465—Surface mounting by soldering
-
- 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
Definitions
- the present invention relates to a method for manufacturing a coil antenna and a method for manufacturing a coil antenna mounting body.
- mobile terminal wireless communication devices such as mobile phones, smartphones, and tablet personal computer (PC) terminals are rapidly spreading. Since these devices are becoming smaller and more functional at the same time, devices to be mounted are also required to be smaller and thinner. In particular, various communication antennas to be mounted are also required to be thin.
- ⁇ Loop antennas and spiral antennas are examples of antennas installed on smartphones. Among these, it is considered that the communication distance is extended by the spiral antenna.
- Patent Document 1 discloses a magnetic member formed of a thin film magnetic material coated with a resin and a magnetic core portion in which a plurality of the magnetic members are stacked without being fixed to each other in response to a request for flexibility of an antenna.
- An antenna core having a flexible tube to be sealed and an oil agent interposed between the magnetic core and the flexible tube is disclosed. It is described that according to this antenna core, the occurrence of cracks and breakage can be suppressed, the shape can be stabilized, and good antenna characteristics can be obtained.
- Patent Document 2 discloses an antenna core composed of an insulating soft magnetic material having a soft magnetic powder and an organic binder in response to demands for impact resistance and diversification of shapes.
- an insulating soft magnetic material having a specific magnetic permeability frequency characteristic By using an insulating soft magnetic material having a specific magnetic permeability frequency characteristic, the coil antenna provided with the antenna core has characteristics superior to those of conventional coil antennas, and has impact resistance, workability, and mountability. It is described that it is excellent.
- a coil antenna (spiral antenna) using a flexible plate-like (sheet-like) magnetic material as a core can be thinned, but an antenna mounting body manufactured by connecting the coil antenna to a substrate or the like However, it is desirable that the thickness be maintained. It is also desired that the antenna mounting body be excellent in manufacturing efficiency.
- Patent Document 1 and Patent Document 2 do not describe a method for treating the end of the coil wire wound around the antenna core.
- the method for treating the end of the coil wire is not limited to the efficiency of the process and the thickness of the antenna mounting body. It is thought that it also affects.
- an object of the present invention is to provide a method for manufacturing a coil antenna that can be efficiently mounted while maintaining the thinness of the coil antenna using a flexible plate-like magnetic material as a core. .
- a plate-like coil antenna body including a flexible magnetic body, and a coil wire wound so as to form a loop in a direction orthogonal to the longitudinal direction of the coil antenna body.
- the method for manufacturing a coil antenna includes a step of temporarily fixing an end of the coil wire to the coil antenna body, and the coil antenna can be electrically connected to a mounting substrate on which the coil antenna is mounted. And a step of processing a portion of the coil wire that comes into contact with the connecting portion of the mounting substrate.
- a plate-like coil antenna body including a flexible magnetic body, and a coil wire wound so as to form a loop in a direction orthogonal to the longitudinal direction of the coil antenna body are provided.
- a coil antenna having a connecting portion at a position where the coil antenna is connected, and a mounting substrate on which the coil antenna is surface-mounted.
- the coil antenna is disposed on the mounting base so that the coil wire part contacts the connecting portion, and the coil antenna is solder-flowed. And a step of joining more the mounting substrate.
- a method of manufacturing a coil antenna that can be efficiently mounted while maintaining the thinness of the coil antenna using a flexible plate-like magnetic material as a core.
- a method for manufacturing a coil antenna mounting body that suppresses an increase in thickness due to bonding between a coil antenna and a mounting substrate.
- a plate-like coil antenna body including a flexible magnetic body, and a coil wire wound so as to form a loop in a direction orthogonal to the longitudinal direction of the coil antenna body.
- the method for manufacturing a coil antenna includes a step of temporarily fixing an end of the coil wire to the coil antenna body, and the coil antenna can be electrically connected to a mounting substrate on which the coil antenna is mounted. And a step of processing a portion of the coil wire that comes into contact with the connecting portion of the mounting substrate.
- a plate-like coil antenna body including a flexible magnetic body, and a coil wire wound so as to form a loop in a direction orthogonal to the longitudinal direction of the coil antenna body are provided.
- a coil antenna having a connecting portion at a position where the coil antenna is connected, and a mounting substrate on which the coil antenna is surface-mounted.
- the coil antenna is disposed on the mounting substrate so that the coil wire portion is in contact with the connecting portion, and the coil antenna is subjected to solder flow.
- Ri a step of bonding the mounting substrate.
- the coil antenna 10 includes a plate-shaped coil antenna main body 11 including a flexible magnetic body, and a short direction (a direction perpendicular to the longitudinal direction) of the coil antenna main body 11. And a coil wire 12 wound so as to form a loop.
- the manufacturing method of the coil antenna 10 includes a step of temporarily fixing the ends 12a and 12b of the coil wire 12 to the coil antenna body 11, and the coil antenna 10 is electrically connected to a mounting substrate (not shown) on which the coil antenna 10 is mounted. A step of performing a process on at least a portion of the coil wire 12 that comes into contact with the connecting portion of the mounting substrate so as to be connectable.
- the ends 12 a and 12 b of the coil wire 12 of the coil antenna 10 face the mounting substrate when disposed on the mounting substrate of the coil antenna body 11. Temporarily fixed to a surface other than the surface 11a (to be connected).
- the coil antenna body 11 has a surface 11b opposite to the surface 11a facing the mounting substrate. Further, the coil antenna 10 has an antenna connection pattern contact portion 20 at a position corresponding to a connection portion (antenna connection pattern) formed on the mounting substrate.
- the ends 12a and 12b of the coil wire 12 are temporarily fixed to the surface of the coil antenna body 11 using an adhesive or the like.
- the surfaces on which the ends 12a and 12b are temporarily fixed are surfaces facing (connecting to) the mounting substrate as shown in FIG. 1 in order to minimize the increase in thickness of the coil antenna 10 after being mounted on the mounting substrate. It is preferable that the surface is adjacent to 11a.
- the surface for temporarily fixing the ends 12a and 12b is connected to the mounting substrate as shown in FIG. It can also be the surface 11b on the opposite side of the surface 11a.
- the coil wire 12 disposed on the surface 11a connected to the mounting substrate is at least a position corresponding to the antenna connection pattern formed on the mounting substrate. Preprocessing is performed on the antenna connection pattern contact portion 20.
- the pretreatment is performed so that the coil antenna 10 and the mounting substrate can be easily connected in the solder flow process, and includes, for example, the formation of a preliminary solder portion and the removal of the coated copper wire.
- the coil antenna body 11 may be a plate-like body including a flexible magnetic body.
- the magnetic body include ferrite, iron, nickel, cobalt, and alloys thereof. However, ferrite is preferred.
- a copper wire for example, a copper wire, preferably a coated copper wire can be used.
- ⁇ Second Embodiment> 3 and 4 are top views of the coil antenna before being mounted on the mounting substrate in the method for manufacturing the coil antenna and the method for manufacturing the coil antenna mounting body according to the second embodiment, and FIG. It is explanatory drawing which shows the state before mounting an antenna on a mounting base material.
- the coil antenna 10 is electrically connected to the mounting base 30 on which the ends 12a and 12b of the coil wire 12 are temporarily fixed to the coil antenna body 11 and the coil antenna 10 is mounted. Including a step of performing processing on at least a portion of the coil wire 12 that contacts the connection portion (antenna connection pattern) 31 of the mounting substrate 30, and the processing forms the preliminary solder portion 23. It is processing to do.
- FIG. 3 shows an example of the coil antenna 10 using a magnetic body provided with SMT (surface mount) lands 22 (antenna terminals) by Ag thick film printing as the coil antenna body 11.
- SMT surface mount
- lands 22 anti-solder
- a coil wire 12 is wound around the coil antenna body 11, pre-solder is applied to the ends 12 a and 12 b of the coil wire 12, and high temperature soldering or spot welding is performed on the land 22 for SMT.
- the dimensions of the land 22 for SMT are not limited.
- the dimension in the longitudinal direction of the coil antenna body 11 indicated by the bidirectional arrow e in FIG. 3 is 1.0 mm
- the dimension of the coil antenna body 11 indicated by the bidirectional arrow f in FIG. The dimension in the direction orthogonal to the short side direction can be 1.0 mm.
- the coil antenna body 11 can use sintered ferrite as a magnetic material. In this case, after half-cutting the magnetic material, printing the SMT land in one half-cut section, firing the magnetic material, and affixing the PET resin having the SMT land portion opened. Thus, the coil antenna body 11 can be manufactured.
- the ends 12a and 12b of the coil wire 12 are hot-soldered or spot welded to the SMT land 22 formed in the coil antenna body 11, and then the coil antenna 10 is mounted.
- the SMT land 22 to which the coil wire 12 is connected is disposed on the mounting substrate 30 so as to abut on the antenna connection pattern 31, and is joined together with other mounting components by solder flow.
- FIG. 4 shows an example of the coil antenna 10 using, for example, a magnetic body in which a resin is coated on ferrite as the coil antenna body 11.
- a coil wire 12 is wound around the coil antenna body 11, and pre-soldering is applied to the ends 12 a and 12 b of the coil wire 12.
- the coil wire 12 is fixed to the coil antenna body 11 by thermocompression bonding with the coated resin.
- the coil antenna body 11 includes the plate-like magnetic core 110 and the flexible printed circuit board (FPC) 111 having the SMT land 22, and the SMT land 22.
- a coil antenna 10 is manufactured in which the ends 12a and 12b of the coil wire 12 are temporarily fixed.
- the flexible printed board 111 is a collective board in which a large number of elements are arranged.
- the dimensions of the individual elements are not limited.
- the dimension indicated by the bidirectional arrow a in FIG. 6 can be 6 mm
- the dimension indicated by the bidirectional arrow b can be 24 mm.
- the magnetic core 110 is a ferrite core formed into a rectangular plate shape.
- a single-sided adhesive sheet 113 made of polyimide with an adhesive material is attached to the first surface of the magnetic core 110 (the lower surface in the state of FIG. 7).
- the heat-resistant double-sided pressure-sensitive adhesive sheet 112 is attached to the second surface (upper surface in the state of FIG. 7) of the magnetic core 110.
- the flexible printed circuit board 111 is affixed on the magnetic body core 110 through the heat-resistant double-sided adhesive sheet 112, and a laminated body is obtained.
- the obtained laminate is divided along the dividing line of the flexible printed board 111 shown by a dotted line in FIG. 6, and is separated into pieces as shown in FIG. Each obtained piece is used as a coil antenna body 11 for manufacturing the coil antenna 10.
- a coil wire 12 is wound around the coil antenna body 11, and the ends 12a and 12b of the coil wire 12 are temporarily fixed to the SMT land 22 by thermocompression bonding, whereby the coil antenna 10 is formed.
- the dimensions of the coil antenna 10 are not limited, in the example of FIG. 9, when the outer dimensions in the short direction and the long direction of the coil antenna body 11 indicated by the bidirectional arrows a and b are 6 mm and 24 mm, respectively,
- the dimension indicated by arrow c is 2.0 mm
- the dimension indicated by bidirectional arrow d is 0.75 mm
- the dimension indicated by bidirectional arrow e ′ is 1.0 mm
- the dimension indicated by bidirectional arrow f ′ is 4.5 mm
- bidirectional The dimension indicated by arrows f1 and f2 can be 2.0 mm.
- the dimension indicated by the bidirectional arrow c is 2.
- the dimension indicated by 0 mm, the dimension indicated by the bidirectional arrow d can be 0.75 mm, the dimension indicated by the bidirectional arrow e ′ can be 1.0 mm, and the dimension indicated by the bidirectional arrow f ′ can be 2.0 mm.
- the coil antenna 10 is disposed on the mounting substrate 30 so that the SMT land 22 and the coil wire 12 are in contact with the antenna connection pattern 31 of the mounting substrate 30, and a solder flow process is performed. Then, it is solder-bonded to the mounting substrate 30 together with other mounting parts such as a chip resistor (CR) 41 and a wafer level chip size package (WLCSP) 42.
- CR chip resistor
- WLCSP wafer level chip size package
- solder flow process means passing through a solder flow tank or passing through a reflow device.
- the coil antenna 10 manufactured by any one of the above-described manufacturing methods can be efficiently mounted while maintaining thinness, and the coil antenna mounting body manufactured by any of the above-described manufacturing methods is the coil antenna 10.
- An increase in thickness due to bonding between the mounting substrate 30 and the mounting substrate 30 is suppressed, and it is suitable as a component mounted on various portable terminals such as a wireless communication device such as a smartphone that is required to be reduced in size and thickness.
- SYMBOLS 10 Coil antenna 11 Coil antenna main body 11a Mounting base material opposing surface 11b Opposite surface of mounting base material opposing surface 110 Magnetic body core 111 Flexible printed circuit board (FPC) DESCRIPTION OF SYMBOLS 112 Heat-resistant double-sided adhesive sheet 113 Single-sided adhesive sheet 12 Coil wire 12a, 12b End of coil wire 20 Antenna connection pattern contact part 22 SMT land 23 Pre-solder part 30 Mounting base material 31 Antenna connection pattern 41 Chip resistor (CR) 42 Wafer Level Chip Size Package (WLCSP)
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Abstract
Description
<第1の実施形態>
図1及び図2は、それぞれ第1の実施形態のコイルアンテナの製造方法において、実装基材に搭載される前のコイルアンテナの外観を示す斜視図である。 図1及び図2を参照すれば、コイルアンテナ10は、可撓性を有する磁性体を含む板状のコイルアンテナ本体11、及びコイルアンテナ本体11の短手方向(長手方向に直交する方向)方向にループを形成するように巻かれたコイル線12を備える。
<第2の実施形態>
図3及び図4は、第2の実施形態のコイルアンテナの製造方法及びコイルアンテナ実装体の製造方法において、実装基材に搭載される前のコイルアンテナの上面図であり、図5は、コイルアンテナを実装基材に実装する前の状態を示す説明図である。
<第3の実施形態>
第3の実施形態を、図6、図7、図8、図9、図10及び図11を参照し説明する。
11 コイルアンテナ本体
11a 実装基材対向面
11b 実装基材対向面の反対面
110 磁性体コア
111 フレキシブルプリント基板(FPC)
112 耐熱両面粘着シート
113 片面粘着シート
12 コイル線
12a、12b コイル線末端
20 アンテナ接続用パターン当接部
22 SMT用ランド
23 予備半田部
30 実装基材
31 アンテナ接続用パターン
41 チップ抵抗器(CR)
42 ウェハレベルチップサイズパッケージ(WLCSP)
Claims (7)
- 可撓性を有する磁性体を含む板状のコイルアンテナ本体、及び該コイルアンテナ本体の長手方向に直交する方向にループを形成するように巻かれたコイル線を備えるコイルアンテナの製造方法において、
前記コイル線の末端を前記コイルアンテナ本体に仮固定する工程と、
前記コイルアンテナが実装される実装基材に対し前記コイルアンテナが電気的に接続可能となるように、前記コイル線の前記実装基材の接続部と当接する部位に対して処理を行う工程と、を含むことを特徴とするコイルアンテナの製造方法。 - 前記コイル線の末端は、前記実装基材と対向する面以外のコイルアンテナ本体の面に仮固定されることを特徴とする請求項1に記載のコイルアンテナの製造方法。
- 前記コイル線の末端は、前記実装基材と対向する面に隣接したコイルアンテナ本体の面に仮固定されることを特徴とする請求項1または2に記載のコイルアンテナの製造方法。
- 前記コイル線の末端は、前記実装基材と対向するコイルアンテナ本体の面に仮固定されることを特徴とする請求項1に記載のコイルアンテナの製造方法。
- 前記コイルアンテナ本体が、板状の磁性体コアと、アンテナ端子を有するフレキシブルプリント基板とを備え、前記アンテナ端子に前記コイル線の末端が仮固定されることを特徴とする請求項1に記載のコイルアンテナの製造方法。
- 前記処理は、前記コイル線の前記実装基材の接続部と当接する部位に予備半田を形成することを特徴とする請求項1から5のいずれかに記載のコイルアンテナの製造方法。
- 可撓性を有する磁性体を含む板状のコイルアンテナ本体、及び該コイルアンテナ本体の長手方向に直交する方向にループを形成するように巻かれたコイル線を備えるコイルアンテナと、前記コイルアンテナと接続する位置に接続部を有し、前記コイルアンテナが表面実装される実装基材と、を備えたコイルアンテナ実装体の製造方法において、
前記コイル線の末端を前記コイルアンテナ本体に仮固定する工程と、
前記実装基材に対し前記コイルアンテナが電気的に接続可能となるように、前記コイル線の前記実装基材に設けられた前記接続部と当接する部位に対して処理を行う工程と、
前記コイルアンテナを、前記コイル線の部位が前記接続部と当接するように前記実装基材に配設し、前記コイルアンテナを半田フローにより前記実装基材に接合する工程と、を含むことを特徴とするコイルアンテナ実装体の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14861998.4A EP3073573A4 (en) | 2013-11-18 | 2014-11-17 | Method for manufacturing coil antenna and method for manufacturing coil antenna mounting body |
JP2015547816A JP6197878B2 (ja) | 2013-11-18 | 2014-11-17 | コイルアンテナの製造方法及びコイルアンテナ実装体の製造方法 |
CN201480062655.XA CN105745789A (zh) | 2013-11-18 | 2014-11-17 | 制造线圈天线的方法以及制造线圈天线封装的方法 |
KR1020167012834A KR20160072198A (ko) | 2013-11-18 | 2014-11-17 | 코일 안테나의 제조 방법 및 코일 안테나 패키지의 제조 방법 |
US15/155,605 US20160261046A1 (en) | 2013-11-18 | 2016-05-16 | Method of manufacturing coil antenna and method of manufacturing coil antenna package |
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JP2013237676 | 2013-11-18 | ||
JP2013-237676 | 2013-11-18 |
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US15/155,605 Continuation US20160261046A1 (en) | 2013-11-18 | 2016-05-16 | Method of manufacturing coil antenna and method of manufacturing coil antenna package |
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WO2015072568A1 true WO2015072568A1 (ja) | 2015-05-21 |
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US (1) | US20160261046A1 (ja) |
EP (1) | EP3073573A4 (ja) |
JP (1) | JP6197878B2 (ja) |
KR (1) | KR20160072198A (ja) |
CN (1) | CN105745789A (ja) |
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Cited By (1)
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CN108496275A (zh) * | 2016-01-08 | 2018-09-04 | 阿莫技术有限公司 | 层叠式天线模块 |
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US10886598B2 (en) * | 2016-11-16 | 2021-01-05 | Wits Co., Ltd. | Antenna module and electronic device having the same |
KR102075779B1 (ko) * | 2017-08-18 | 2020-02-11 | 주식회사 아모텍 | 링형 안테나 및 이를 구비한 이어 모듈 |
EP3474378B1 (en) * | 2017-10-23 | 2021-03-17 | Premo, S.A. | Antenna for low frequency communication within a vehicle environment and low frequency communication system |
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JPS6430305A (en) * | 1987-07-25 | 1989-02-01 | Fuji Electrochemical Co Ltd | Bar antenna |
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- 2014-11-17 KR KR1020167012834A patent/KR20160072198A/ko not_active Application Discontinuation
- 2014-11-17 CN CN201480062655.XA patent/CN105745789A/zh active Pending
- 2014-11-17 WO PCT/JP2014/080371 patent/WO2015072568A1/ja active Application Filing
- 2014-11-17 EP EP14861998.4A patent/EP3073573A4/en not_active Withdrawn
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2016
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Also Published As
Publication number | Publication date |
---|---|
JPWO2015072568A1 (ja) | 2017-03-16 |
KR20160072198A (ko) | 2016-06-22 |
EP3073573A1 (en) | 2016-09-28 |
CN105745789A (zh) | 2016-07-06 |
US20160261046A1 (en) | 2016-09-08 |
JP6197878B2 (ja) | 2017-09-20 |
EP3073573A4 (en) | 2017-06-21 |
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