WO2017177532A1 - 一种小型化nfc天线以及移动终端 - Google Patents

一种小型化nfc天线以及移动终端 Download PDF

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Publication number
WO2017177532A1
WO2017177532A1 PCT/CN2016/085795 CN2016085795W WO2017177532A1 WO 2017177532 A1 WO2017177532 A1 WO 2017177532A1 CN 2016085795 W CN2016085795 W CN 2016085795W WO 2017177532 A1 WO2017177532 A1 WO 2017177532A1
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Prior art keywords
antenna
organic
antenna trace
trace
plate
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PCT/CN2016/085795
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English (en)
French (fr)
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张建超
黄冕
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深圳中科系统集成技术有限公司
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Publication of WO2017177532A1 publication Critical patent/WO2017177532A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—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
    • 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
    • H01Q1/2225—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 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • 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

Definitions

  • the present invention relates to the field of antennas, and in particular, to a miniaturized NFC antenna and a mobile terminal.
  • the antenna is used as an important component of the wireless transmission system in the mobile device to transmit and receive electromagnetic wave energy.
  • NFC Near Field Communication
  • NFC antennas are becoming more and more widely used in smart devices, such as mobile phones, watches, wristbands with NFC antennas and NFC payment functions.
  • NFC antennas with one-way transmission function can increase the transmission distance of electromagnetic resonance and improve at the same time.
  • the transmission efficiency of electric energy has great research significance in mobile devices with such special requirements, such as watches and bracelets with metal casings around them.
  • the conventional NFC antenna mainly includes the following types: an enameled wire, an FPC soft plate antenna, a laser engraved antenna, and an integrated antenna on a ceramic substrate.
  • an enameled wire for a relatively large mobile device such as a mobile phone, Near-field communication can be achieved by using an enameled wire or an FPC soft-plate antenna on the back shell.
  • mobile devices such as smart watches and wristbands, which are relatively small in size, it is difficult to use an enameled wire antenna due to size limitations.
  • the FPC antenna meets the communication distance and quality requirements, and the installation cost in the mobile device is high, and with the user's requirements for the light, thin, short, small and other characteristics of the mobile device and the high integration requirements, the research of the NFC antenna also needs The development of miniaturization, slimming, and multi-functionality has made the size and performance of NFC antennas an important factor affecting wireless communication and product size.
  • the embodiment of the invention provides a miniaturized NFC antenna with a one-way transmission function, which can enhance communication distance and communication quality.
  • the first aspect of the present invention provides a miniaturized NFC antenna, which may include:
  • the miniaturized NFC antenna comprises an organic substrate and a thin magnetic medium
  • the organic substrate includes a first organic plate and a second organic plate disposed oppositely.
  • the upper surface of the first organic plate is provided with a first antenna trace and a second antenna trace, and the lower surface of the first organic plate is provided with a third antenna. a fourth antenna trace on the upper surface of the second organic plate;
  • the thin magnetic medium is sandwiched between the lower surface of the first organic sheet and the upper surface of the second organic sheet;
  • the organic substrate and the thin magnetic medium are respectively provided with a first metallized via, a second metallized via and a third metallized via, and the end of the first antenna trace passes through the first metallized via and the first
  • the first end of the three-antenna trace is electrically connected, and the end of the third trace is electrically connected to the first end of the fourth antenna trace through the second metallized via, and the end of the fourth antenna trace is turned on by the third metallization
  • the hole is electrically connected to the end of the second antenna trace;
  • the first end of the first antenna trace is connected to the first transmitting end, and the first end of the second antenna trace is connected to the second transmitting end.
  • the first antenna trace, the second antenna trace, and the third antenna trace are printed on the first organic Antenna routing on the board;
  • the fourth antenna trace is an antenna trace printed on the second organic sheet.
  • the upper surface of the first organic sheet material A first line is printed, and a second line is printed on the lower surface of the second organic sheet.
  • the first embodiment or the second embodiment of the first aspect of the embodiment of the present invention in the third implementation manner of the first aspect of the embodiment of the present invention, the third The shape of the antenna trace and the fourth antenna trace are the same.
  • the first organic plate, the second organic plate, and the thin magnetic medium are square plates of the same shape and shape.
  • the first organic sheet has a flat plate size of less than or equal to 10 ⁇ 10 mm;
  • the second organic sheet has a plate size of less than or equal to 10 ⁇ 10 mm;
  • the sheet size of the thin magnetic medium is less than or equal to 10 x 10 mm.
  • the thin magnetic medium has a thickness of 0.1 mm to 1 mm.
  • a second aspect of the present invention provides a mobile terminal, which may include the miniaturized NFC antenna of the first aspect of the above embodiment.
  • a miniaturized NFC antenna may include an organic substrate and a thin magnetic medium.
  • the organic substrate may include a first organic plate and a second organic plate disposed oppositely, and the upper surface of the first organic plate may be provided with a first antenna trace and a second antenna trace, and the lower surface of the first organic plate may be a third antenna trace is disposed, and a fourth antenna trace may be disposed on the upper surface of the second organic plate; the thin magnetic medium is sandwiched between the lower surface of the first organic plate and the upper surface of the second organic plate; the organic substrate And the thin magnetic medium may be provided with a first metallization via, a second metallization via and a third metallization via, so that the end of the first antenna trace can pass through the first metallized via
  • the first end of the third antenna is electrically connected, and the end of the third trace can be electrically connected to the first end of the fourth antenna through the second metallized via, and the end of the fourth antenna can pass through the third The metalized via is connected to the
  • the antenna traces are arranged on the organic board, which can save the space occupied by the antenna; the application of the thin magnetic medium can effectively enhance the inductance and the preparation process is simple; the electrical connection of the antenna traces through the metalized vias can be reduced The area around the antenna trace facilitates the thinning of the NFC antenna
  • the thin magnetic medium has electrical connection antennas on the upper and lower sides to enhance the communication distance and communication quality.
  • FIG. 1 is a schematic diagram of an embodiment of a miniaturized NFC antenna according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing a magnetic field direction of a cross section of a miniaturized NFC antenna according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another embodiment of a miniaturized NFC antenna according to an embodiment of the present invention.
  • the embodiment of the invention provides a miniaturized NFC antenna, which has a one-way transmission function, can realize miniaturization design, and enhance communication distance and communication quality.
  • an embodiment of the miniaturized NFC antenna in the embodiment of the present invention includes:
  • the miniaturized NFC antenna may include an organic substrate 1 and a thin magnetic medium 2;
  • the organic substrate 1 includes a first organic plate 101 and a second organic plate 102.
  • the upper surface of the first organic plate may be provided with a first antenna trace 1011 and a second antenna trace 1012.
  • the lower surface of the first organic plate The third antenna trace 1013 may be provided, and the upper surface of the second organic plate 102 may be provided with a fourth antenna trace 1021;
  • the thin magnetic medium 2 is sandwiched between the lower surface of the first organic sheet 101 and the upper surface of the second organic sheet 102;
  • the organic substrate 1 and the thin magnetic medium 2 are respectively provided with a first metallization via hole 3, a second metallization via hole 4 and a third metallization via hole 5, and the end of the first antenna trace 1011 passes through the first metal
  • the through hole 3 is electrically connected to the first end of the third antenna trace 1013, and the end of the third trace 1013 is electrically connected to the first end of the fourth antenna trace 1021 through the second metallized via 4, the fourth antenna
  • the end of the trace 1021 is electrically connected to the end of the second antenna trace 1012 through the third metallization via 5;
  • the first end of the first antenna trace 1011 is connected to the first transmitting end, and the first end of the second antenna trace 1012 is connected to the second transmitting end.
  • the upper and lower layers of the thin magnetic medium are provided with antenna traces, and the antenna traces of any one layer can be spiraled from the outside to the inside. Winding, after winding to the center, can be spirally wound from the inside to the outside through the second metallized via 4, thereby achieving superposition of the magnetic field direction of the two antenna traces.
  • the positions and shapes of the first antenna trace 1011, the second antenna trace 1012, and the third antenna trace 1012 may be other, and the first metallized via 3
  • the positions of the second metallization via 4 and the third metallization via 5 may be other. This embodiment is only illustrated by using FIG. 1 as a schematic diagram.
  • the first organic plate 101 and the second organic plate 102 of the organic substrate may be epoxy resin FR-4, and may also be other types of organic plates, such as bismaleimide.
  • the triazine resin BT, the polyimide resin PI, and the thin magnetic medium 2 may be bendable soft magnetic materials, and are not limited herein.
  • the magnetic fields of the third antenna trace 1013 and the fourth antenna trace 1021 can be realized by respectively arranging the third antenna trace 1013 and the fourth antenna trace 1021 on the surface of the upper and lower organic thin plates of the thin magnetic medium.
  • the direction is superimposed, and the thin magnetic medium 2 passing through the third antenna trace 1013 and the fourth antenna trace 1021 increases the inductance of the antenna in a limited area, thereby enhancing the communication distance and communication quality of the miniaturized NFC antenna;
  • the design of the metalized via hole reduces the layout area of the antenna trace, saves the space occupied by the antenna trace, and is advantageous for the miniaturization design of the NFC antenna;
  • the thin magnetic medium 2 has two antenna layers on the upper and lower sides.
  • the layout design enables the miniaturized NFC antenna to communicate in a direction perpendicular to the antenna routing layer, and can be miniaturized
  • the NFC antenna implements the special requirements of the one-way transmission function.
  • FIG. 2 another embodiment of the miniaturized NFC antenna in the embodiment of the present invention includes:
  • the first antenna trace 1011, the second antenna trace 1012, and the third antenna trace 1013 are antenna traces printed on the first organic board 101;
  • the fourth antenna trace 1021 is an antenna trace printed on the second organic board 102.
  • the first antenna trace 1011, the second antenna trace 1012, the third antenna trace 1013, and the fourth antenna trace 1021 described above may be distributed on the organic board in a printed manner.
  • the process can be:
  • the film, the upper and lower surfaces of the first organic plate 101 and the second organic plate 102 are each provided with a copper foil, and the photosensitive dry film which is chemically sensitive to a specific spectrum can be respectively coated on the upper and lower surfaces of the first organic plate 101 and On the upper surface of the second organic sheet 102;
  • the first organic plate 101 and the second organic plate 102 which are exposed and adhered to the photosensitive dry film may be covered with a layer of line film and exposed, and the first organic plate 101 and the second organic plate 102 are covered by the line film.
  • the photosensitive dry film portion is hardened and transparent;
  • the printing manners of the first antenna trace 1011, the second antenna trace 1012, the third antenna trace 1013, and the fourth antenna trace 1021 are applied in addition to the above-described subtractive method.
  • it may also be an additive method or a semi-additive method, which is not limited herein.
  • the magnetic field directions of the third antenna trace 1013 and the fourth antenna trace 1021 can be effectively superimposed, and the third antenna trace 1013 and the fourth antenna trace 1021 in this embodiment are
  • the shape and size may be the same, such as a square spiral shape or a circular spiral shape, which is not limited herein.
  • the number of windings of the third antenna trace 1013 and the second antenna trace 1021 may be other than the example of FIG. 2, and this embodiment only uses FIG. 2 as a schematic diagram. Give an example.
  • the miniaturized NFC is prepared in this embodiment.
  • the specific process of the antenna can be:
  • the first organic plate 101 printed with the first antenna trace 1011, the second antenna trace 1012 and the third antenna trace 1013, and the second organic sheet 102 printed with the fourth antenna trace 1021 are selected;
  • the first organic plate 101, the thin magnetic medium 2, and the second organic plate 102 are stacked, wherein one side of the first organic plate 101 printed with the third antenna trace 1013 is adjacent to one side of the thin magnetic medium 2, The second organic plate 102 is printed with one side of the fourth antenna trace 1021 adjacent to the other side of the thin magnetic medium 2;
  • the integrated structure obtained by laminating and joining is subjected to through-hole processing, so that the first ends of the first antenna trace 1011, the second antenna trace 1012, the third antenna trace 1013, and the fourth antenna trace 1021 can be based on actual conditions.
  • the situation is connected through the through hole;
  • the through hole is substantially connected, that is, after the connection, it can become an integral antenna routing structure.
  • the metallization conduction process of the through holes may be performed by using other conductive materials such as silver plating, as long as the antenna traces can pass through the metal.
  • the conductive vias can be electrically connected, and are not limited herein.
  • the first antenna trace 1011, the second antenna trace 1012, the third antenna trace 1013 are disposed on the first organic board 101, and the fourth antenna trace 1021 is illustrated by the above example.
  • the specific arrangement of the antennas is disposed on the second organic board 102.
  • the layout of the antenna traces may be performed by using a method such as transferring a silk screen layer. The specific manner is not limited herein.
  • the first organic plate 101, the first The two organic sheets 102 and the thin magnetic medium 2 may have the same shape and size The square plate, it can be understood that, in practical applications, the shape of the first organic plate 101, the second organic plate 102, and the thin magnetic medium 2 may be other, such as a circular plate, which is not limited herein.
  • the size of the first organic plate 101 in the embodiment may be less than or equal to 10 ⁇ 10 mm; the size of the second organic plate 102 may be less than or equal to 10 ⁇ 10 mm; thin magnetic
  • the plate size of the medium 2 may be less than or equal to 10 x 10 mm. It should be noted that the size of the first organic plate 101, the second organic plate 102, and the thin magnetic medium 3 may be determined by other actual shape requirements based on miniaturization design, such as a circular plate having a radius of 5 mm. No restrictions are imposed.
  • the first antenna trace 1011, the second antenna trace 1012, the third antenna trace 1013, and the fourth antenna trace 1021 are specifically printed on the organic board in a printed manner.
  • the surface is simple in preparation process, can reduce the use of raw materials for production, and reduce the production cost.
  • the connection between the antenna traces is made of metalized via holes, which can not only avoid staggered connections, but also overcome the disadvantage of thickening of NFC antennas. It is advantageous for the thin design of mobile devices using the miniaturized NFC antenna.
  • another embodiment of the miniaturized NFC antenna in the embodiment of the present invention includes:
  • the upper surface of the first organic sheet 101 may be printed with a first line 1014, and the lower surface of the second organic sheet 102 may be printed with a second line 1022. It should be noted that, in practical applications, the shape and size of the first line 1014 and the second line 1022 in this embodiment may be other arrangements based on actual conditions. This embodiment is only illustrated by using FIG. 3 as a schematic diagram.
  • a first line 1014 is printed on the upper surface of the first organic sheet 101
  • a second line 1022 is printed on the lower surface of the second organic sheet 102. It can be understood that the printing of the first line 1014 and the second line 1022 may also be a process flow for performing the filming, exposure, development, and etching described in the above embodiments.
  • the printing method of the first line 1014 and the second line 1022 may be performed by an additive method or a semi-additive method in addition to the above-described subtractive method. No restrictions are imposed.
  • the thickness of the first organic plate 101 and the second organic plate 102 may be 0.1 mm to 1 mm, so as to satisfy the route of each antenna and the layout of each line, and the thickness of the thin magnetic medium may also be It is 0.1 mm to 1 mm to meet the miniaturization while ensuring magnetic permeability.
  • the first organic board 101 and the second organic board 102 can also be respectively disposed with the first line 1014 and the second line 1022, effectively utilizing the existing space, and satisfying other correlations.
  • the arrangement of the device realizes the high integration of the device using the miniaturized NFC antenna, which is advantageous for the intensive processing of the device, and further, the thickness of the first organic plate 101, the second organic plate 102 and the thin magnetic medium 3 and the flat plate area can be certain The range is adjusted to meet the different needs of miniaturized NFC antennas, to achieve effective near-field communication quality, and to refine the design of small devices.
  • the mobile terminal provided in this embodiment has all the advantageous effects of the miniaturized NFC antenna by providing the miniaturized NFC antenna in any of the above embodiments, and details are not described herein again.

Abstract

本发明实施例公开了一种小型化NFC天线，具有单向传输功能，能够增强通讯距离及通讯质量。该天线包括有机基体和薄型磁性介质，其中，有机基体包括第一有机板材和第二有机板材，薄型磁性介质夹持在第一有机板材的下表面和第二有机板材的上表面之间，有机基体和薄型磁性介质均设有第一金属化导通孔、第二金属化导通孔和第三金属化导通孔，使得设于第一有机板材上表面的第一天线走线和下表面的第三天线走线，以及设于第二有机板材上表面的第四天线走线之间能够通过这些金属化导通孔电连接，此外，第一天线走线与第一发射端连接，第二天线走线与第二发射端连接。本发明实施例还提供了一种移动终端，可以利用该天线实现便携、轻巧、纤薄的设计要求。

Description

一种小型化NFC天线以及移动终端
本申请要求于2016年4月13日提交中国专利局、申请号为201610227590.0、发明名称为“一种小型化NFC天线以及移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及天线领域，尤其涉及一种小型化NFC天线以及移动终端。
背景技术
随着无线通信技术的不断发展，无线应用逐步深入，越来越多的移动设备已具有无线传输的功能，其中，天线作为移动设备中无线传输系统用来发射及接受电磁波能量的重要元件，受到了广泛的研究。
NFC(Near Field Communication，近场通信)作为一种非接触式识别和互联技术，可以在移动设备等工具之间进行近距离无线通信。基于NFC技术的飞速发展，NFC天线在智能设备中的应用范围也越来越宽广，如具有NFC天线以及NFC支付功能的手机、手表、手环等。在实际应用中，不同于全向NFC天线，针对有单一性方向传输需求或者三个方向有传输限制的移动设备，具有单向传输功能的NFC天线由于既能够增加电磁共振的传输距离，同时提高电能的传输效率，因而在这类特殊需求的移动设备中有较大的研究意义，如四周具有金属外壳的手表、手环等。
一般来说，传统的NFC天线主要包括以下几种：绕制漆包线、FPC软板天线、镭雕天线、陶瓷基板上集成天线，相对来说，对于诸如手机这种尺寸相对较大的移动设备，可以采用后壳上绕漆包线或者FPC软板天线的方式实现近场通讯的目的，而对于诸如智能手表及手环这种尺寸相对较小的移动设备，则由于尺寸的限制难以采用绕漆包线式天线或者FPC天线达到通讯距离及质量的要求，且在移动设备中的安装成本较高，而随着用户对移动设备轻、薄、短、小等特性以及高度整合的要求，NFC天线的研究也需要朝小型化、纤薄化、多功能化等高要求发展，从而NFC天线的尺寸和性能成为影响无线通讯以及产品大小的重要因素。
综上所述，如何提供一种具有单向传输功能的NFC天线，满足小型化要求，以利于实现移动设备便携、轻巧、纤薄的设计要求，是本专业技术人员需 要不断创新改进的问题。
发明内容
本发明实施例提供了一种小型化NFC天线，具有单向传输功能，能够增强通讯距离及通讯质量。
有鉴于此，本发明第一方面提供一种小型化NFC天线，可包括：
该小型化NFC天线包括有机基体和薄型磁性介质；
有机基体包括相对设置的第一有机板材和第二有机板材，第一有机板材的上表面设有第一天线走线以及第二天线走线，第一有机板材的下表面设有第三天线走线，第二有机板材的上表面设有第四天线走线；
薄型磁性介质夹持在第一有机板材的下表面和第二有机板材的上表面之间；
有机基体和薄型磁性介质均设有第一金属化导通孔、第二金属化导通孔和第三金属化导通孔，第一天线走线的末端通过第一金属化导通孔与第三天线走线的首端电连接，第三走线的末端通过第二金属化导通孔与第四天线走线的首端电连接，第四天线走线的末端通过第三金属化导通孔与第二天线走线的末端电连接；
第一天线走线的首端与第一发射端连接，第二天线走线的首端与第二发射端连接。
结合本发明实施例的第一方面，在本发明实施例的第一方面的第一种实施方式中，第一天线走线、第二天线走线和第三天线走线为印刷于第一有机板材上的天线走线；
第四天线走线为印刷于第二有机板材上的天线走线。
结合本发明实施例的第一方面，或本发明实施例的第一方面的第一种实施方式，在本发明实施例的第一方面的第二种实施方式中，第一有机板材的上表面印刷有第一线路，第二有机板材的下表面印刷有第二线路。
结合本发明实施例的第一方面，本发明实施例的第一方面的第一种实施方式或第二种实施方式，在本发明实施例的第一方面的第三种实施方式中，第三天线走线和第四天线走线的形状大小相同。
结合本发明实施例的第一方面，本发明实施例的第一方面的第一种实施方式至第三种实施方式中的任意一种，在本发明实施例的第一方面的第四种实施 方式中，第一有机板材、第二有机板材以及薄型磁性介质为形状大小相同的正方形平板。
结合本发明实施例的第一方面的第四种实施方式，在本发明实施例的第一方面的第五种实施方式中，第一有机板材的平板尺寸为小于或等于10×10毫米；
第二有机板材的平板尺寸为小于或等于10×10毫米；
薄型磁性介质的平板尺寸为小于或等于10×10毫米。
结合本发明实施例的第一方面，本发明实施例的第一方面的第一种实施方式至第五种实施方式中的任意一种，在本发明实施例的第一方面的第六种实施方式中，第一有机板材和第二有机板材的厚度为0.1毫米至1毫米。
结合本发明实施例的第一方面，本发明实施例的第一方面的第一种实施方式至第六种实施方式中的任意一种，在本发明实施例的第一方面的第七种实施方式中，薄型磁性介质的厚度为0.1毫米至1毫米。
本发明第二方面提供一种移动终端，可包括上述实施例的第一方面的小型化NFC天线。
从以上技术方案可以看出，本发明实施例具有以下优点：
本实施例中提供了一种小型化NFC天线，可以包括有机基体和薄型磁性介质。其中，有机基体可以包括相对设置的第一有机板材和第二有机板材，且第一有机板材的上表面可以设有第一天线走线以及第二天线走线，第一有机板材的下表面可以设有第三天线走线，第二有机板材的上表面可以设有第四天线走线；薄型磁性介质夹持在第一有机板材的下表面和第二有机板材的上表面之间；有机基体和薄型磁性介质可以均设有第一金属化导通孔、第二金属化导通孔和第三金属化导通孔，从而第一天线走线的末端可以通过第一金属化导通孔与第三天线走线电的首端电连接，第三走线的末端可以通过第二金属化导通孔与第四天线走线的首端电连接，第四天线走线的末端可以通过第三金属化导通孔与第二天线走线电的末端连接；此外，第一天线走线的首端可以与第一发射端连接，第二天线走线的首端与第二发射端连接。
由此可知，在有机板材上布设天线走线，可以节省天线的占用空间；薄型磁性介质的应用可以有效增强电感量，且制备工艺简单；通过金属化导通孔电连接天线走线，可以减少天线走线的绕设面积，利于小型化NFC天线的薄型 化；薄型磁性介质上下方均设有电连接的天线走线，可以增强通讯距离以及通讯质量。
附图说明
图1为本发明实施例中小型化NFC天线一个实施例示意图；
图2为本发明实施例中小型化NFC天线截面的磁场方向示意图；
图3为本发明实施例中小型化NFC天线另一实施例示意图。
具体实施方式
本发明实施例提供了一种小型化NFC天线，具有单向传输功能，能够实现小型化设计，且增强通讯距离及通讯质量。
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分的实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
为便于理解，下面对本发明实施例中的小型化NFC天线进行具体详细的描述，请参阅图1，本发明实施例中小型化NFC天线一个实施例包括：
该小型化NFC天线可以包括有机基体1和薄型磁性介质2；
有机基体1包括相对设置的第一有机板材101和第二有机板材102，第一有机板材的上表面可以设有第一天线走线1011以及第二天线走线1012，第一有机板材的下表面可以设有第三天线走线1013，第二有机板材102的上表面可以设有第四天线走线1021；
薄型磁性介质2夹持在第一有机板材101的下表面和第二有机板材102的上表面之间；
有机基体1和薄型磁性介质2均设有第一金属化导通孔3、第二金属化导通孔4和第三金属化导通孔5，第一天线走线1011的末端通过第一金属化导通孔3与第三天线走线1013的首端电连接，第三走线1013的末端通过第二金属化导通孔4与第四天线走线1021的首端电连接，第四天线走线1021的末端通过第三金属化导通孔5与第二天线走线1012的末端电连接；
第一天线走线1011的首端与第一发射端连接，第二天线走线1012的首端与第二发射端连接。
具体的，在实际应用中，基于上述说明的连接关系，从图1中可以看出，薄型磁性介质的上下两层上均设有天线走线，任意一层的天线走线可由外向内螺旋形绕线，绕到中心后可通过第二金属化导通孔4到另一层由内向外螺旋形绕线，由此实现两层天线走线的磁场方向叠加。需要说明的是，图1所示实施例中中第一天线走线1011、第二天线走线1012、第三天线走线1012的位置以及形状都可以是其它，第一金属化导通孔3、第二金属化导通孔4以及第三金属化导通孔5的位置也可以是其它，本实施例仅以图1作为示意图进行举例说明。
可以理解的是，本实施例中，有机基体的第一有机板材101和第二有机板材102可以为环氧树脂FR-4，还可以是其它类型的有机板材，如双马来酰亚胺改性三嗪树脂BT、聚酰亚胺树脂PI，薄型磁性介质2可以为可折弯的软质磁性材料，具体此处均不做限定。
本实施例中，通过在薄型磁性介质上下两层的有机板材表面分别布设第三天线走线1013和第四天线走线1021，可以实现第三天线走线1013和第四天线走线1021的磁场方向叠加，同时通过第三天线走线1013和第四天线走线1021中间的薄型磁性介质2在有限的面积内增加了天线的电感量，从而增强了小型化NFC天线的通讯距离及通讯质量；另外，金属化导通孔的设计，减少了天线走线的布设面积，节省了天线走线的占用空间，有利于NFC天线的小型化设计；此外，薄型磁性介质2上下两层天线走线的布设设计可以使得该小型化NFC天线在垂直于天线走线层的方向实现通讯，且能够满足小型化 NFC天线实现单向传输功能的特殊需求。
在上述本发明实施例中小型化NFC天线的基础上，请参阅图2，本发明实施例中小型化NFC天线另一实施例包括：
第一天线走线1011、第二天线走线1012和第三天线走线1013为印刷于第一有机板材101上的天线走线；
第四天线走线1021为印刷于第二有机板材102上的天线走线。
具体的，在实际应用中，上述说明的第一天线走线1011、第二天线走线1012、第三天线走线1013以及第四天线走线1021可以以印刷的方式分布于有机板材上，具体工艺可以为：
1、贴膜，第一有机板材101和第二有机板材102的上下表面均附有铜箔，可以将对特定光谱敏感而发生化学反应的感光干膜分别覆盖在第一有机板材101的上下表面和第二有机板材102的上表面上；
2、曝光，贴好感光干膜的第一有机板材101和第二有机板材102上可以再覆盖一层线路胶片之后进行曝光，第一有机板材101和第二有机板材102上线路胶片覆盖下的感光干膜部分呈硬化的透明状；
3、显影，使用诸如碳酸钠溶液洗去第一有机板材101和第二有机板材102上未硬化的感光干膜，裸露出不需要感光干膜保护的铜箔；
4、蚀刻，使用蚀铜液对第一有机板材101和第二有机板材102进行蚀刻，去除裸露出的铜箔，呈现硬化干膜下的天线走线。
可以理解的是，本实施例中第一天线走线1011、第二天线走线1012、第三天线走线1013以及第四天线走线1021的印刷方式除了上述说明的减成法，在实际应用中，还可以是加成法或半加成法，具体此处不做限定。
进一步的，如图2所示，可以使得第三天线走线1013和第四天线走线1021的磁场方向有效的叠加，本实施例中的第三天线走线1013和第四天线走线1021的形状大小可以相同，如方形的螺旋状、圆形的螺旋状，具体此处不做限定。需要说明的是，本实施例中第三天线走线1013和第二天线走线1021的绕设圈数可以是除图2示例以外的其它绕设圈数，本实施例仅以图2作为示意图进行举例说明。
基于上述说明的印刷有天线走线的有机板材，本实施例中制备小型化NFC 天线的具体工艺可以为：
1、选取印刷有第一天线走线1011、第二天线走线1012和第三天线走线1013的第一有机板材101，以及印刷有第四天线走线1021的第二有机板材102；
2、以第一有机板材101、薄型磁性介质2、第二有机板材102排列的方式进行层叠，其中，第一有机板材101印刷有第三天线走线1013的一面贴近薄型磁性介质2的一面，第二有机板材102印刷有第四天线走线1021的一面贴近薄型磁性介质2的另一面；
3、在第一有机板材101、薄型磁性介质2以及第二有机板材102的贴合处加入诸如PP胶等辅料，采用热压工艺，对这三个材料进行层压接合，得到一体结构；
4、将层压接合得到的一体结构进行通孔化处理，使得第一天线走线1011、第二天线走线1012、第三天线走线1013以及第四天线走线1021的首末端可以基于实际情况通过通孔进行连接；
5、对通孔进行金属化导通处理，如镀铜处理，使得第一天线走线1011、第二天线走线1012、第三天线走线1013以及第四天线走线1021的首末端可以通过通孔进行实质性的连接，即通过连接之后，可以成为一个整体的天线走线结构。
可以理解的是，本实施例中通孔的金属化导通处理除了上述说明的镀铜处理之外，还可以采用其它导电材质的镀液，如镀银，只要各天线走线能够通过该金属化导通孔实现电连接即可，具体此处不做限定。
需要说明的是，本实施例仅以上述一个例子说明了第一天线走线1011、第二天线走线1012、第三天线走线1013布设于第一有机板材101，以及第四天线走线1021布设于第二有机板材102上的具体方式，在实际应用中，还可以采用诸如转印丝印层的方式进行各天线走线的布设，具体方式此处不做限定。
进一步的，在上述说明的制备工艺中，为了能够较好地对第一有机板材101、薄型磁性介质2、第二有机板材102进行层压接合，本实施例中，第一有机板材101、第二有机板材102以及薄型磁性介质2可以为形状大小相同的 正方形平板，可以理解的是，在实际应用中，第一有机板材101、第二有机板材102以及薄型磁性介质2的形状还可以是其它，如圆形平板，具体此处不做限定。
具体的，在实际应用中，本实施例中第一有机板材101的平板尺寸可以为小于或等于10×10毫米；第二有机板材102的平板尺寸可为小于或等于10×10毫米；薄型磁性介质2的平板尺寸可以为小于或等于10×10毫米。需要说明的是，第一有机板材101、第二有机板材102以及薄型磁性介质3的平板尺寸可以是由其它基于小型化设计的实际形状需求决定，如半径为5毫米的圆形平板，具体此处不做限定。
基于上述实施例说明的有益效果，本实施例中，第一天线走线1011、第二天线走线1012、第三天线走线1013和第四天线走线1021具体以印刷的方式布设于有机板材的表面，制备工艺简单，可以减少生产原料的使用，降低生产成本，各天线走线之间的连接采用金属化导通孔，不仅可以有效避免交错连接，还可以克服NFC天线体积变厚的缺点，有利于使用该小型化NFC天线的移动设备的薄型化设计。
在上述本发明实施例中小型化NFC天线的基础上，请参阅图3，本发明实施例中小型化NFC天线另一实施例包括：
第一有机板材101的上表面可以印刷有第一线路1014，第二有机板材102的下表面可以印刷有第二线路1022。需要说明的是，在实际应用中，本实施例中第一线路1014和第二线路1022的形状及大小可以是其它基于实际情况的布设，本实施例仅以图3作为示意图进行举例说明。
具体的，在实际应用中，由于移动设备的纤巧、薄型化等精细设计，在近场通讯中，NFC天线作为作为移动设备中无线传输系统中的重要元件，需要能够高度整合其它器件，从而可以在第一有机板材101的上表面印刷第一线路1014，第二有机板材102的下表面印刷第二线路1022。可以理解的是，该第一线路1014和第二线路1022的印刷也可以是进行上述实施例说明的贴膜、曝光、显影以及蚀刻的工艺流程，
需要说明的是，本实施例中第一线路1014和第二线路1022的印刷方式除了上述说明的减成法，在实际应用中，也可以使用加成法或半加成法，具体此 处不做限定。
进一步的，本实施例中第一有机板材101和第二有机板材102的厚度可以为0.1毫米至1毫米，以能够满足各条天线走线以及各条线路的布设，薄型磁性介质的厚度也可以为0.1毫米至1毫米，以满足小型化的同时可以保证磁导率。
基于上述实施例说明的有益效果，本实施例中，第一有机板材101和第二有机板材102还可以分别布设第一线路1014和第二线路1022，有效利用现有的空间，满足于其它相关器件的布置，实现使用小型化NFC天线的设备的高度整合，有利于设备的密集化处理，此外，第一有机板材101、第二有机板材102和薄型磁性介质3的厚度以及平板面积可在一定的范围内进行调整，能够满足小型化NFC天线的不同需求，达到有效的近场通讯质量、精细化的小型设备的设计目的。
本实施例提供的移动终端，通过设置上述任一项实施例中的小型化NFC天线，从而具有小型化NFC天线所具有的一切有益效果，在此不再赘述。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
在本申请所提供的几个实施例中，应该理解到，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (9)

  1. 一种小型化NFC天线，所述NFC天线包括有机基体和薄型磁性介质，其特征在于，
    所述有机基体包括相对设置的第一有机板材和第二有机板材，所述第一有机板材的上表面设有第一天线走线以及第二天线走线，所述第一有机板材的下表面设有第三天线走线，所述第二有机板材的上表面设有第四天线走线；
    所述薄型磁性介质夹持在所述第一有机板材的所述下表面和所述第二有机板材的所述上表面之间；
    所述有机基体和所述薄型磁性介质均设有第一金属化导通孔、第二金属化导通孔和第三金属化导通孔，所述第一天线走线的末端通过所述第一金属化导通孔与所述第三天线走线的首端电连接，所述第三走线的末端通过所述第二金属化导通孔与所述第四天线走线的首端电连接，所述第四天线走线的末端通过所述第三金属化导通孔与所述第二天线走线的末端电连接；
    所述第一天线走线的首端与第一发射端连接，所述第二天线走线的首端与第二发射端连接。
  2. 根据权利要求1所述的小型化NFC天线，其特征在于，所述第一天线走线、第二天线走线和第三天线走线为印刷于所述第一有机板材上的天线走线；
    第四天线走线为印刷于所述第二有机板材上的天线走线。
  3. 根据权利要求1或2所述的小型化NFC天线，其特征在于，所述第一有机板材的所述上表面印刷有第一线路，所述第二有机板材的下表面印刷有第二线路。
  4. 根据权利要求1或2所述的小型化NFC天线，其特征在于，所述第三天线走线和所述第四天线走线的形状大小相同。
  5. 根据权利要求1或2所述的小型化NFC天线，其特征在于，所述第一有机板材、所述第二有机板材以及所述薄型磁性介质为形状大小相同的正方形平板。
  6. 根据权利要求5所述的小型化NFC天线，其特征在于，所述第一有机板材的平板尺寸为小于或等于10×10毫米；
    所述第二有机板材的平板尺寸为小于或等于10×10毫米；
    所述薄型磁性介质的平板尺寸为小于或等于10×10毫米。
  7. 根据权利要求1或2所述的小型化NFC天线，其特征在于，所述第一有机板材和所述第二有机板材的厚度为0.1毫米至1毫米。
  8. 根据权利要求1或2所述的小型化NFC天线，其特征在于，所述薄型磁性介质的厚度为0.1毫米至1毫米。
  9. 一种移动终端，其特征在于，包括如权利要求1至7中任一项所述的小型化NFC天线。
PCT/CN2016/085795 2016-04-13 2016-06-15 一种小型化nfc天线以及移动终端 WO2017177532A1 (zh)

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JP7075729B2 (ja) * 2017-06-28 2022-05-26 株式会社ユニバーサルエンターテインメント 非接触情報媒体及びその製造方法
US10340584B2 (en) * 2017-08-08 2019-07-02 The Boeing Company Structural multilayer antenna design and fabrication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103050779A (zh) * 2013-01-24 2013-04-17 青岛歌尔声学科技有限公司 一种nfc天线及其制造方法和一种nfc通信设备
CN103825100A (zh) * 2014-03-12 2014-05-28 深圳市麦捷微电子科技股份有限公司 天线及射频识别模组
CN203660047U (zh) * 2013-11-25 2014-06-18 上海德门电子科技有限公司 一种立体式nfc天线
US20160079670A1 (en) * 2014-09-12 2016-03-17 Sony Corporation Wireless electronic devices including flexible magnetic material that extends through openings of a printed circuit board

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3896965B2 (ja) * 2002-01-17 2007-03-22 三菱マテリアル株式会社 リーダ／ライタ用アンテナ及び該アンテナを備えたリーダ／ライタ
JP4414940B2 (ja) * 2005-06-14 2010-02-17 ソニーケミカル＆インフォメーションデバイス株式会社 アンテナ装置及びアンテナ装置の調整方法
CN202009072U (zh) * 2011-02-25 2011-10-12 比亚迪股份有限公司 一种近场通讯天线
CN102663486B (zh) * 2012-04-04 2016-03-30 上海仪电智能电子有限公司 一种微型智能标签

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103050779A (zh) * 2013-01-24 2013-04-17 青岛歌尔声学科技有限公司 一种nfc天线及其制造方法和一种nfc通信设备
CN203660047U (zh) * 2013-11-25 2014-06-18 上海德门电子科技有限公司 一种立体式nfc天线
CN103825100A (zh) * 2014-03-12 2014-05-28 深圳市麦捷微电子科技股份有限公司 天线及射频识别模组
US20160079670A1 (en) * 2014-09-12 2016-03-17 Sony Corporation Wireless electronic devices including flexible magnetic material that extends through openings of a printed circuit board

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