WO2011038596A1 - 印刷天线和终端设备 - Google Patents

印刷天线和终端设备 Download PDF

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Publication number
WO2011038596A1
WO2011038596A1 PCT/CN2010/074302 CN2010074302W WO2011038596A1 WO 2011038596 A1 WO2011038596 A1 WO 2011038596A1 CN 2010074302 W CN2010074302 W CN 2010074302W WO 2011038596 A1 WO2011038596 A1 WO 2011038596A1
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WO
WIPO (PCT)
Prior art keywords
antenna
printed
terminal device
circuit board
printed circuit
Prior art date
Application number
PCT/CN2010/074302
Other languages
English (en)
French (fr)
Inventor
陈大舵
李忠华
Original Assignee
华为终端有限公司
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 华为终端有限公司 filed Critical 华为终端有限公司
Priority to JP2012531218A priority Critical patent/JP2013506355A/ja
Publication of WO2011038596A1 publication Critical patent/WO2011038596A1/zh
Priority to US13/434,506 priority patent/US20120188144A1/en

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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
    • H01Q1/36—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
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • Embodiments of the present invention relate to the field of electronic communications, and more particularly to a printed antenna and a terminal device including the same.
  • External or internal antennas are generally used on conventional data cards.
  • an external antenna an external device needs to be added, and an interface is left on the terminal device, so that an external antenna interface is added while the peripheral device is added.
  • the built-in antenna the number of components needs to be increased, and the cost of assembly, testing, and cost is increased, and a large space is required, and the design of the data card is also limited.
  • a single-layer printing scheme for printed antennas is used on some data cards.
  • the size of the data card can be made small, and the design space is improved, and the development space is saved.
  • An embodiment of the present invention provides a printed antenna on the one hand and a terminal device on the other hand, which can solve the problem of index offset in the mass production of the existing single-layer printed antenna solution.
  • the printed antenna provided by the embodiment of the present invention includes: a printed circuit board and at least two antenna patterns; the printed circuit board includes at least two copper foil layers; and the at least two antenna patterns are respectively formed on the printed circuit board On the different copper foil layers, and the at least two antenna patterns are electrically connected.
  • the terminal device provided by the embodiment of the present invention includes: the above printed antenna and a communication module;
  • the communication module is configured to access the wireless network through the printed antenna to implement communication between the terminal device and the wireless network.
  • at least two antenna patterns are formed on different copper foil layers of the printed circuit board, and the at least two antenna patterns are electrically connected, thereby forming an antenna including a plurality of single layers.
  • Graphic printed antenna Since the printed antenna includes a plurality of single-layer antenna patterns, the performance index of the antenna is stable, and the parameter dependence on the thickness of the printed circuit board is low, and the performance of the terminal device antenna and the quality of communication are greatly improved.
  • FIG. 1 is a schematic perspective structural view of a printed antenna according to an embodiment of the present invention.
  • FIGS. 2a, 2b, 2c are schematic diagrams showing a layered structure of another printed antenna according to an embodiment of the present invention.
  • 3a, 3b, 3c, and 3d are schematic diagrams showing the shape of an antenna pattern according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • Embodiment 1 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • an embodiment of the present invention provides a printed antenna, which includes: a first antenna pattern 11 (a strip antenna shown by a solid line in FIG. 1), and a second antenna pattern 12 (FIG. 1). a strip antenna shown in the middle dashed line), and a printed circuit board 13;
  • the printed circuit board 13 includes at least two copper foil layers
  • the first antenna pattern 11 and the second antenna pattern 12 are respectively formed on different copper foil layers of the printed circuit board 13, and the first antenna pattern 11 and the second antenna pattern 12 are electrically connected (not shown).
  • FIG. 1 is a perspective view of a printed antenna, and a first antenna pattern 11 is formed on the top of a printed circuit board 13.
  • the second antenna pattern 12 may be formed on the underlying or printed copper foil of the printed circuit board 13.
  • the first antenna pattern 11 and the second antenna pattern 12 may be respectively formed on the top and bottom layers of the printed circuit board 13; when the printed circuit board 13 is a multilayer board, the first antenna pattern 11 And the second antenna pattern 12 may be formed on the top, bottom and intermediate layers of the printed circuit board 13, for example, the first antenna pattern 11 is formed on the top layer of the printed circuit board 13, and the second antenna pattern 11 is formed on the printed circuit board 13.
  • the bottom or middle layer is used to form the printed circuit board 13 a multilayer board.
  • the above-mentioned printed antenna may not be limited to include only two antenna patterns (the first antenna pattern 11 and the second antenna pattern 12), that is, the above-mentioned printed antenna may further include a third antenna pattern. And a fourth antenna pattern up to the Nth antenna pattern; wherein N is less than or equal to the number of copper foil layers of the printed circuit board 13. That is, when the printed circuit board 13 is a multi-layer board, at least two copper foil layers may be arbitrarily selected from the top layer, the bottom layer and the at least one intermediate layer of the printed circuit board 13, respectively, to form an antenna pattern (for example, three layers). 4 layers... until each layer forms an antenna pattern), and the antenna patterns of the respective layers are electrically connected.
  • FIG. 2a, 2b, and 2c are layered schematic views, which are top views of the layers from the top layer of the printed circuit board 13
  • the first antenna pattern 11 and the second antenna pattern 12 may be Having the same or similar shapes and correspondingly different copper foil layers disposed on the printed circuit board 13 (for example, the projections of the first antenna pattern 11 and the second antenna pattern 12 on a corresponding horizontal surface of a layer of the printed circuit board 13 are complete or Partially coincident), whereby the electrical connection of the first antenna pattern 11 and the second antenna pattern 12 can be achieved by one or more vias 14 coated with a conductive material; in Figures 2a, 2b and 2c, the first antenna pattern 11 Formed on the top layer (top layer) of the printed circuit board 13, the second antenna pattern 12 is formed on the bottom layer (bottom layer) of the printed circuit board 13, and FIG.
  • the via hole 14 on the intermediate layer, wherein the via hole 14 is penetrated.
  • the top, middle and bottom layers of the printed circuit board 13 pass through the first antenna pattern 11 and the second antenna pattern 12.
  • the via holes 14 may have one or more, and the specific number is not limited, and may be set as needed, as long as the first antenna pattern 11 and the second antenna pattern 12 can be electrically connected; when there are a plurality of via holes 14, each The via holes may be evenly distributed or randomly disposed; when there are a plurality of via holes 14, the electrical connection effect is better.
  • the printed antenna may include a plurality of antenna patterns (for example, the first antenna pattern 11, the second antenna pattern 12, the third antenna pattern, the fourth antenna pattern, and the Nth antenna pattern),
  • the antenna patterns of the respective layers may have the same or similar shapes, and correspondingly disposed on different copper foil layers of the printed circuit board 13 (for example, the projection of the antenna patterns of the respective layers on the corresponding horizontal surface of a certain layer of the printed circuit board 13 is completely Or partially overlapping), whereby the electrical connections of the plurality of antenna patterns distributed in the layers can be achieved by vias coated with a conductive material.
  • the electrical connection form of the antenna patterns of different layers is not limited to the above-mentioned via connection, and may be other electricity. Connection method.
  • the shape of the antenna pattern may be a regular or irregular strip shape, a regular or irregular block shape, or other regular or irregular shapes, and may be specifically set as needed.
  • the shape of the antenna pattern of different layers may also be different.
  • the first antenna pattern 11 is a regular or irregular strip shape as shown in FIG. 1 or FIG. 2a
  • the third antenna pattern may be FIG. 3a to FIG. 3d. Rectangular, semi-circular, triangular or other regular or irregular shapes as shown.
  • a printed antenna comprising a plurality of single layer antenna patterns is formed by forming at least two antenna patterns on different copper foil layers of a printed circuit board and electrically connecting the at least two antenna patterns. Since the printed antenna includes a plurality of single-layer antenna patterns, that is, the graphic pattern of the antenna pattern is designed as multiple layers, when the thickness of the current printed circuit board changes, the performance index of the antenna is relatively stable, and the antenna-to-printed circuit is greatly reduced.
  • the printed antenna provided by the embodiment of the present invention solves the problem of index offset in the mass production of the existing single-layer printed antenna solution, so that the performance of the antenna product in the production and mass production of the printed antenna provided by the embodiment of the present invention is Stable, therefore, the printed antenna provided by the embodiment of the present invention is particularly suitable for industrial mass production of an antenna.
  • Embodiment 2
  • an embodiment of the present invention provides a terminal device, including: a printed antenna 41, and a communication module 42;
  • the printed antenna 41 includes a printed circuit board and at least two antenna patterns; the printed circuit board includes at least two copper foil layers respectively formed on different copper foil layers of the printed circuit board, the at least two antennas Electrical connection between graphics;
  • the communication module 42 is configured to access the wireless network through the printed antenna 41 to implement communication between the terminal and the wireless network.
  • the above terminal device may further include a sub antenna 43 for performing diversity reception of signals together with the main antenna.
  • the printed antenna 41 is used as the main antenna, and the sub-antenna 43 can also be of a form similar to the printed antenna 41, that is, the sub-antenna 43 can also be a printed antenna including at least two antenna patterns.
  • the terminal device may be a data card (wireless modem), a wireless network card, a mobile phone, a portable computer with Internet access, or other terminal device capable of mobile communication.
  • the above printed antenna 41 can also be used for Bluetooth, WIFI (Wireless Fidelity), GPS (Navigation Satellite). Timing And Ranging Global Position System, navigation satellite time measurement and ranging global positioning system) and other functions.
  • a printed antenna comprising a plurality of single layer antenna patterns is formed by forming at least two antenna patterns on different copper foil layers of a printed circuit board and electrically connecting the at least two antenna patterns. Since the printed antenna includes a plurality of single-layer antenna patterns, the performance index of the antenna is stable, and the parameter dependence on the thickness of the printed circuit board is low, and the performance of the terminal device antenna and the quality of communication are greatly improved.

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  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)

Description

印刷天线和终端设备
本申请要求于 2009年 09月 29日提交中国专利局、 申请号为 CN 200920205511. 1、 发明名称为 "印刷天线和终端设备"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 本发明实施例涉及电子通信领域，尤其是一种印刷天线和包括该印刷天线的终端设 备。 背景技术 传统数据卡上一般采用外置或内置天线。对于外置天线， 需要增加外部器件， 终端 设备上还要余留接口， 这样在增加外围器件的同时还要外接天线接口。 对于内置天线， 则需要增加器件数量， 在组装、 测试、 成本方面均需要增加成本， 而且要占用较大的空 间， 对数据卡的外观设计也有一定的限制。
另外， 部分数据卡上采用了印刷天线的单层印刷方案。对于采用印刷天线方案可以 将数据卡的尺寸做小， 在获得较好的外观设计效果的同时， 也节省了开发空间。
在实现本发明的过程中， 发明人发现现有技术中至少存在如下问题： 现有技术中， 单层印刷天线方案， 在实际量产应用时会受到 PCB (Printed Circuit Board，印刷电路 板）量产厚度公差和介电常数等因素的影响， 对天线的指标产生影响， 不利于产品大批 量生产。 发明内容
本发明实施例一方面提供了一种印刷天线， 另一方面提供了一种终端设备， 能够解 决现有单层印刷天线方案在批量生产时的指标偏移问题。
本发明实施例提供的印刷天线， 包括： 印刷电路板和至少两个天线图形； 所述印刷电路板包括至少两个的铜箔层；所述至少两个天线图形分别形成在所述印 刷电路板不同的铜箔层上， 且所述至少两个天线图形之间电连接。
本发明实施例提供的终端设备， 包括： 上述印刷天线和通信模块；
所述通信模块， 用于通过所述印刷天线接入无线网络， 实现所述终端设备与所述无 线网络的通信。 由以上技术方案可知， 本发明实施例中， 通过在印刷电路板的不同铜箔层上形成至 少两个天线图形， 并且该至少两个天线图形电连接， 从而形成了包括多个单层的天线图 形的印刷天线。该印刷天线由于包括了多个单层的天线图形， 所以， 天线的性能指标稳 定， 对印刷电路板的厚度等参数依赖性低， 极大的提高了终端设备天线的性能和通信的 质量。 附图说明 为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附 图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明的一些实施例， 对于本 领域普通技术人员来讲， 在不付出创造性劳动性的前提下， 还可以根据这些附图获得其 他的附图。
图 1为本发明实施例的一种印刷天线的立体结构示意图；
图 2a， 2b， 2c为本发明实施例的另一种印刷天线的分层结构示意图；
图 3a， 3b， 3c, 3d为本发明实施例的天线图形的形状示意图；
图 4为本发明实施例的一种终端设备的结构示意图。 具体实施方式 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作出创造性劳动前提下所获得的所 有其他实施例， 都属于本发明保护的范围。 实施例一
如附图 1所示， 本发明实施例提供了一种印刷天线， 该印刷天线包括： 第一天线 图形 11 (图 1中实线所示的条状天线） ， 第二天线图形 12 (图 1中虚线所示的条状天 线） ， 和印刷电路板 13;
印刷电路板 13包括至少两个铜箔层；
第一天线图形 11和第二天线图形 12分别形成在印刷电路板 13不同的铜箔层上， 第一天线图形 11和第二天线图形 12之间电连接（图中未画出） 。
参考图 1， 图 1为印刷天线的立体图，第一天线图形 11形成在印刷电路板 13顶层 的铜箔上， 第二天线图形 12可以形成在印刷电路板 13底层的或者中间层的铜箔上。 当 印刷电路板 13为双面板时， 第一天线图形 11和第二天线图形 12可以分别形成在印刷 电路板 13的顶层和底层； 当印刷电路板 13为多层板时， 第一天线图形 11和第二天线 图形 12可以分别形成在印刷电路板 13的顶层、底层和中间层上， 例如， 第一天线图形 11形成在印刷电路板 13的顶层， 第二天线图形 11形成在印刷电路板 13的底层的或者 中间层。
另外， 当印刷电路板 13为多层板时， 上述印刷天线可以不限于只包括两个天线图 形 （第一天线图形 11和第二天线图形 12) ， 即上述印刷天线可以进一步包括第三天线 图形、第四天线图形直至第 N天线图形； 其中， N小于等于印刷电路板 13的铜箔层的数 量。 也就是说， 当印刷电路板 13为多层板时， 可以从印刷电路板 13的顶层、 底层和至 少一个中间层中，任意选择至少两个铜箔层分别形成天线图形（例如， 3个层、 4个层…… 直至每个层都形成一个天线图形） ， 各个层的天线图形之间电连接。
其中， 参考图 2a、 2b和 2c (图 2a、 2b和 2c为分层示意图， 是从印刷电路板 13 的顶层向下俯视各层的俯视图）， 第一天线图形 11和第二天线图形 12可以具有相同或 相近的形状， 并且对应设置在印刷电路板 13不同的铜箔层（例如， 第一天线图形 11和 第二天线图形 12在印刷电路板 13某一层对应的水平面上的投影完全或部分重合）， 从 而，可以通过敷有导电材料的一个或多个过孔 14实现第一天线图形 11和第二天线图形 12的电连接；在图 2a、 2b和 2c中，第一天线图形 11形成于印刷电路板 13的顶层（top 层） ， 第二天线图形 12形成于印刷电路板 13的底层 （bottom层） ， 图 2b示出了中间 层上的过孔 14， 其中， 过孔 14贯穿印刷电路板 13的顶层、 中间层和底层， 并且穿过第 一天线图形 11和第二天线图形 12。 另外， 过孔 14可以有一个或多个， 具体数量不限， 可以根据需要设置， 只要能够电连接第一天线图形 11和第二天线图形 12即可； 当有多 个过孔 14时， 各个过孔可以均匀分布或者随意设置； 当过孔 14有多个时， 其电连接的 效果会更好。 当印刷电路板 13为多层板时， 印刷天线可以包括多个天线图形 （例如， 第一天线图形 11、第二天线图形 12、第三天线图形、第四天线图形直至第 N天线图形）， 而各层的天线图形可以具有相同或相近的形状， 并且对应设置在印刷电路板 13不同的 铜箔层 （例如， 各层的天线图形在印刷电路板 13某一层对应的水平面上的投影完全或 部分重合）， 从而， 可以通过敷有导电材料的过孔实现分布在各层的多个天线图形的电 连接。
当然， 不同层的天线图形的电连接形式不限于上述的过孔连接， 还可以是其他电 连接方式。天线图形的形状可以是规则或不规则的条带状， 规则或不规则的块状， 或者 其他规则或不规则的形状， 具体可以根据需要设置。 另外， 不同层的天线图形的形状也 可以不同， 例如， 第一天线图形 11为图 1或图 2a所示的规则或不规则的条带状， 而第 三天线图形可以是图 3a至图 3d所示的矩形、半圆形、三角形或者其他规则或不规则形 状。
本发明实施例中， 通过在印刷电路板的不同铜箔层上形成至少两个天线图形， 并 且该至少两个天线图形电连接， 从而形成了包括多个单层的天线图形的印刷天线。该印 刷天线由于包括了多个单层的天线图形， 即将天线图形的图形设计为多层， 所以， 在当 前印刷电路板厚度发生变动时， 天线的性能指标相对稳定， 大大降低了天线对印刷电路 板的厚度等参数依赖性， 相对与现有的单层印刷天线方案， 本发明实施例提供的印刷天 线极大的提高了天线的性能。而且， 由于本发明实施例提供的印刷天线解决了现有单层 印刷天线方案在批量生产时的指标偏移问题，从而本发明实施例提供的印刷天线在产品 化量产时， 天线产品的性能稳定， 因此， 本发明实施例提供的印刷天线特别适合于天线 的工业化量产。 实施例二
如附图 4所示， 本发明实施例提供了一种终端设备， 该设备包括： 印刷天线 41， 和通信模块 42;
印刷天线 41包括印刷电路板和至少两个天线图形；该印刷电路板包括至少两个铜 箔层， 该至少两个天线图形分别形成在印刷电路板不同的铜箔层上， 该至少两个天线图 形之间电连接；
通信模块 42，用于通过所述印刷天线 41接入无线网络，实现终端与无线网络的通 信。
上述终端设备还可以包括副天线 43， 用于与主天线一起实现信号的分集接收。 此 时， 以印刷天线 41作为主天线， 副天线 43也可以采用与印刷天线 41类似的形式， 即 副天线 43也可以是一个包括至少两个天线图形的印刷天线。
上述印刷天线 41的实现形式可以参考实施例一中的描述， 在此不再赘述。
上述终端设备可以是数据卡 （无线调制解调器） 、 无线网卡、 手机、 带上网功能 的便携电脑， 或者其他可进行移动通讯的终端设备。 另外， 上述印刷天线 41也可以用 于蓝牙（Bluetooth)、WIFI (Wireless Fidelity,无线宽带）、 GPS (Navigation Satellite Timing And Ranging Global Position System, 导航卫星测时与测距全球定位系统） 等功能的实现。
本发明实施例中， 通过在印刷电路板的不同铜箔层上形成至少两个天线图形， 并 且该至少两个天线图形电连接， 从而形成了包括多个单层的天线图形的印刷天线。 该印 刷天线由于包括了多个单层的天线图形， 所以， 天线的性能指标稳定， 对印刷电路板的 厚度等参数依赖性低， 极大的提高了终端设备天线的性能和通信的质量。 总之， 以上所述仅为本发明的较佳实施例而已， 并非用于限定本发明的保护范围。 凡在本发明的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发 明的保护范围之内。

Claims

权利要求
1、 一种印刷天线， 其特征在于， 所述印刷天线包括： 印刷电路板和至少两个天线 图形；
所述印刷电路板包括至少两个铜箔层；
所述至少两个天线图形分别形成在所述印刷电路板不同的铜箔层上，且所述至少两 个天线图形之间电连接。
2、 如权利要求 1所述的印刷天线， 其特征在于， 所述印刷天线包括第一天线图形 和第二天线图形两个天线图形， 所述第一天线图形形成在所述印刷电路板的顶层， 所述 第二天线图形形成在所述印刷电路板的中间层或底层。
3、 如权利要求 1或 2所述的印刷天线， 其特征在于， 所述至少两个天线图形对应 设置在印刷电路板不同的铜箔层上， 所述印刷电路板上设有一个或多个通孔， 所述通孔 穿过所述至少两个天线图形，并通过所述通孔内敷设的导电材料实现所述至少两个天线 图形之间的电连接。
4、 如权利要求 1或 2所述的印刷天线， 其特征在于， 所述天线图形的形状是条带 状或块状。
5、 如权利要求 4所述的印刷天线， 其特征在于， 所述至少两个天线图形的形状是 相同或者不同的。
6、 一种终端设备， 其特征在于， 所述终端设备包括：
权利要求 1至 5任一项所述的印刷天线， 和通信模块；
所述通信模块， 用于通过所述印刷天线接入无线网络， 实现所述终端设备与所述无 线网络的通信。
7、 如权利要求 6所述的终端设备， 其特征在于， 所述终端设备还包括副天线； 所述印刷天线作为所述终端设备的主天线；
所述副天线， 用于作为所述终端设备的分集天线， 与所述主天线一起实现信号的分 集接收。
8、 如权利要求 7所述的终端设备， 其特征在于， 所述副天线也是一个包括至少两 个的天线图形的印刷天线。
9、 如权利要求 6至 8任一项所述的终端设备， 其特征在于， 所述终端设备是数据 卡、 无线网卡、 手机、 带上网功能的便携电脑， 或者其他可进行移动通讯的终端设备。
PCT/CN2010/074302 2009-09-29 2010-06-23 印刷天线和终端设备 WO2011038596A1 (zh)

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