WO2012100517A1 - 一种无线终端及其天线 - Google Patents

一种无线终端及其天线 Download PDF

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Publication number
WO2012100517A1
WO2012100517A1 PCT/CN2011/077663 CN2011077663W WO2012100517A1 WO 2012100517 A1 WO2012100517 A1 WO 2012100517A1 CN 2011077663 W CN2011077663 W CN 2011077663W WO 2012100517 A1 WO2012100517 A1 WO 2012100517A1
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WO
WIPO (PCT)
Prior art keywords
metal radiating
antenna
radiating unit
metal
wireless terminal
Prior art date
Application number
PCT/CN2011/077663
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English (en)
French (fr)
Inventor
曲兰英
朱铖
Original Assignee
中兴通讯股份有限公司
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Filing date
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012100517A1 publication Critical patent/WO2012100517A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; 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
    • H01Q1/243Supports; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10Resonant slot antennas
    • H01Q13/106Microstrip slot antennas

Definitions

  • the present invention relates to the field of wireless terminal technologies, and in particular, to a wireless terminal and an antenna thereof. Background technique
  • wireless terminals such as wireless network cards have been favored by more and more consumers.
  • wireless network cards In order to attract more consumers' attention, low-cost, ultra-thin and stylish appearance, high-performance, low-radiation wireless terminals have become important research objects for wireless terminal manufacturers.
  • antenna not only directly affects the transceiver performance of wireless terminal communication, but also the height of the antenna is an important factor affecting the appearance thickness of the wireless terminal.
  • the height of the antenna is an important factor affecting the appearance thickness of the wireless terminal.
  • the antenna commonly used by the wireless terminal is a PIFA antenna, a monopole antenna, etc.
  • the antenna and the antenna bracket need to be separately manufactured, which increases project expenditure and has high cost. Summary of the invention
  • the main object of the present invention is to provide a wireless terminal and an antenna thereof, which satisfy the performance requirements of the multi-frequency antenna and the structural requirements of the wireless terminal.
  • a wireless terminal antenna the antenna includes: a matching circuit, an antenna feeder connected to the matching circuit, a grounding component, and a metal radiating unit;
  • the grounding element is located around the metal radiating element and leaves a gap with the metal radiating element.
  • the shape of the antenna feed line is a straight line and/or a curve, and is located on the surface of the circuit board. Or the middle layer.
  • the matching circuit is connected to an antenna feed point.
  • the slit has a width ranging from 0.1 to 1 mm, and an antenna matching point is disposed in the slit.
  • the metal radiating unit includes a first metal radiating unit and a second metal radiating unit, and the antenna feeding line transmits energy to the first metal radiating unit or the second metal radiating unit connected to itself, and the second metal radiating unit The unit or the first metal radiating element is coupled to feed; or
  • the antenna feed line is not connected to the first metal radiating unit and the second metal radiating unit, and is directly coupled to the first metal radiating unit and the second metal radiating unit for feeding.
  • the antenna feed line is directly connected to the first metal radiating unit or the second metal radiating unit, or the antenna feed line is overlapped with the first metal radiating unit or the second metal radiating unit in parallel, and is connected to each other through the via holes.
  • the first metal radiating unit is located in a surface layer or a dielectric plate of a front portion of the circuit board
  • the second metal radiating unit is located in a surface layer or a dielectric plate of a back portion of the circuit board.
  • an insulating medium is disposed between the first metal radiating unit and the second metal radiating unit, and is connected to each other through a through hole, a via hole, or a buried hole.
  • grounding elements are distributed in a block-independent manner around the metal radiating elements, and the independent grounding elements are connected by series electronic devices;
  • grounding elements are distributed in a unitary form around the metal radiating element.
  • the shape of the metal radiating unit is one or more of a rectangular shape, a circular shape, a diamond shape, a trapezoidal shape, and a triangular shape.
  • the metal radiating unit is provided with a slot, and the slot has a shape of one or more of a rectangular shape, an F type, an E type, an H type, an S type, a grid type, a comb type, and a ring type. .
  • a wireless terminal including an antenna located on a circuit board of the wireless terminal,
  • the antenna includes: a matching circuit, an antenna feed line connected to the matching circuit, a grounding element, a metal radiating unit;
  • the grounding element is located around the metal radiating element and leaves a gap with the metal radiating element.
  • the metal radiating unit includes a first metal radiating unit and a second metal radiating unit, and the antenna feeding line transmits energy to the first metal radiating unit or the second metal radiating unit connected to itself, and the second metal radiating unit The unit or the first metal radiating element is coupled to feed; or
  • the antenna feed line is not connected to the first metal radiating unit and the second metal radiating unit, and is directly coupled to the first metal radiating unit and the second metal radiating unit for feeding.
  • an insulating medium is disposed between the first metal radiating unit and the second metal radiating unit, and are connected to each other through a through hole, a via hole, or a buried hole;
  • the first metal radiating unit and/or the second metal radiating unit are provided with slots, and the slots are rectangular, F-shaped, E-shaped, H-shaped, S-shaped, grid-shaped, comb-shaped, and ring-shaped.
  • the slots are rectangular, F-shaped, E-shaped, H-shaped, S-shaped, grid-shaped, comb-shaped, and ring-shaped.
  • the invention designs the antenna structure based on the circuit board of the wireless terminal, directly engraves the antenna on the circuit board, or connects the antenna to the circuit board through welding, cable connection, etc., compared with the PIFA antenna used on other terminals.
  • monopole antennas and the like eliminate the cost of separately manufacturing antenna brackets, mold opening, etc., reducing project expenses and reducing costs; and the performance of the antenna can meet the performance requirements of multi-frequency antennas, and the height of the antenna is small, well Meet the structural design needs of wireless terminals.
  • FIG. 1 is a schematic structural diagram of a wireless terminal antenna according to the present invention.
  • FIG. 2 is a cross-sectional view of the wireless terminal antenna shown in FIG. 1;
  • FIG. 3 is a schematic structural diagram of Embodiment 1 of a wireless terminal antenna according to the present invention. detailed description
  • the basic idea of the present invention is: performing antenna wiring on a circuit board of a wireless terminal, determining an occupied area of the antenna according to different media and an operating frequency of the antenna, and the wiring of the antenna may be a single layer board or a multi-layer board of the circuit board. Wiring, specifically using slotting and coupling to radiate electromagnetic signals.
  • FIG. 1 and 2 are schematic views showing a top view structure and a cross-sectional structure of a wireless terminal antenna of the present invention, respectively.
  • the embodiment of the present invention is a single-sided grooved printed circuit board (PCB) antenna as an example.
  • PCB printed circuit board
  • the description is specifically for the layout of the PCB antenna in the area of the PCB of the wireless terminal without other components, the area of the area may be about 360 square millimeters, and the size of the area may also be based on the working frequency of the medium and the antenna.
  • the influence of the antenna matching circuit is flexibly adjusted.
  • the minimum area of the PCB antenna provided by the present invention can reach about 200 square millimeters.
  • the top view structure of the PCB antenna refers to FIG. 1.
  • the upper surface portion of the PCB antenna includes a grounding element 11, a first metal radiating element 13, an H-shaped slotted line 14 at the first metal radiating element 13, a first metal radiating element 13 and a ground.
  • the structure of the lower portion of the PCB antenna is the same as that of the upper surface layer, but the second metal radiating element 12 located in the lower layer of the PCB antenna is not provided with a slotted line, slotted
  • the shape of the wire may be set to a regular or irregular shape such as a rectangle, an F-shape, an E-shape, an H-shape, an S-shape, a grid-like shape, a comb-tooth type, a ring shape, or a combination of several shapes according to an actual coupling effect;
  • the first metal radiating unit 13 and the second metal radiating unit 12 is an insulating medium, which is connected to each other through a through hole, a via hole, or a buried hole; in addition, the gap 19 may also be provided with an antenna matching point 18;
  • the PCB antenna further includes an antenna feed point 17, a matching circuit 16, and an antenna feed line 15 connected to the matching circuit 16; wherein, the antenna feed line 15 may be located at a surface layer or an intermediate layer of the PCB antenna,
  • the shape may be a straight line, a curve, or a combination of a straight line and a curved line, for example, a combination of a 0-shaped curve and a straight line shown in FIG. 1; the width may be adjusted according to actual needs;
  • the antenna feed line 15 may be directly connected to the first metal radiating unit 13 and/or the second metal radiating unit 12, or may be arranged in parallel with the first metal radiating unit 13 and/or the second metal radiating unit 12, through a small via. Connected to the first metal radiating element 13 and/or the second metal radiating element 12; or the antenna feed line 15 is not connected to the first metal radiating element 13 and the second metal radiating element 12 to form a coupling feed; Can be determined according to the simulation or actual debugging conditions.
  • the antenna feed line 15 in the embodiment of the present invention is located between the first metal radiating unit 13 and the second metal radiating unit 12, and the insulating medium 20 may be filled between the first metal radiating unit 13 and the second metal radiating unit 12.
  • the antenna feed line 15 is connected to the matching circuit 16, and the matching circuit 16 is connected to the antenna feed point 17.
  • the length and width of the antenna feed line 15 can be adjusted according to the simulation result of the antenna to optimize the antenna resonance.
  • a matching point may be disposed at the slot of the H-shaped slot line 14.
  • the matching point may be adjusted according to actual needs, and may specifically be one or more of a capacitor, an inductor, and a resistor to adjust the antenna.
  • the depth of the return loss can also be located on the surface of the first metal radiating element 13.
  • the grounding elements 11 shown in FIG. 1 are distributed in a block-independent manner around the first metal radiating element 13, and the independent grounding elements 11 can be connected by the serial electronic device 10 for adjusting the antenna.
  • the electronic device 10 can be one or more of a capacitor, an inductor, and a resistor; in addition, the grounding member 11 can also be distributed in a whole form around the first metal radiating unit 13, or as shown in FIG.
  • grounding element 11 Two independent blocks or three blocks in the grounding element 11 as a whole are connected to the remaining grounding element 11 through the electronic device 10 and distributed around the first metal radiating element 13 to achieve the purpose of adjusting the resonant frequency and bandwidth of the antenna; In practical applications, it is also possible to reduce the distribution of the grounding element 11 according to the debugging situation, for example, the grounding element 11 It may be distributed on both sides, or three sides of the first metal radiating element 13, and the like. It should be understood that the above arrangement is also applicable to the antenna portion of the lower layer of the PCB. In addition, during the performance debugging of the above PCB antenna, a slot may be provided at the second metal radiating unit 12 to strengthen the between the antennas. Coupling to better meet the needs.
  • the width of the slot 19 can be adjusted according to the resonant frequency of the desired antenna, etc.
  • the width range is usually between 0.1 and 1 mm; the antenna matching point 18 can also be set according to actual conditions, and used to adjust the antenna resonance point.
  • the location may be one, two or more combinations, and the like.
  • the shape and size of the first metal radiating unit 13 and the second metal radiating unit 12 may be adjusted according to actual needs, and may be any regular or irregular shape such as a rectangle, a circle, a diamond, a trapezoid, a triangle, or the like, or may be The plurality of d, metal radiating elements having the above shape are composed; and the number of the first metal radiating unit 13 and the second metal radiating unit 12 can be set according to the need of the antenna resonant frequency.
  • the second metal radiating element 12 and the first metal radiating element 13 may be located in the surface layer of the PCB, or in the dielectric sheet of the intermediate layer between the front and back sides of the PCB.
  • the PCB antenna may also be a three-layer structure including three metal radiating elements or a multi-layer structure of a plurality of metal radiating elements, etc., especially when the performance of the antenna is not high, It is a single layer structure consisting of only one metal radiating element.
  • Embodiment 1 of the wireless terminal antenna of the present invention is a schematic structural view of Embodiment 1 of the wireless terminal antenna of the present invention.
  • the second metal radiating element 12 of the PCB antenna located in the lower layer is composed of 12 rectangular shaped small metal radiating elements.
  • the rest of the structure is the same as that of the antenna shown in FIG. 1, and will not be described again.
  • the present invention also provides a wireless terminal having the above antenna, the antenna of the wireless terminal is located on a circuit board of the wireless terminal, and the antenna comprises: a matching circuit, an antenna feeder connected to the matching circuit, a grounding element, a metal radiating unit Wherein the grounding element is located around the metal radiating element and has a gap between the metal radiating element.
  • the antenna feeder will energize Passing to the first metal radiating unit or the second metal radiating unit connected to itself, and couplingly feeding with the second metal radiating unit or the first metal radiating unit;
  • the antenna feed line is not connected to the first metal radiating unit and the second metal radiating unit, and is directly coupled to the first metal radiating unit and the second metal radiating unit for feeding.
  • an insulating medium is disposed between the first metal radiating unit and the second metal radiating unit, and are connected to each other through a through hole, a via hole, or a buried hole;
  • the first metal radiating unit and/or the second metal radiating unit are provided with slots, and the slots are rectangular, F-shaped, E-shaped, H-shaped, S-shaped, grid-shaped, comb-shaped, and ring-shaped.
  • the slots are rectangular, F-shaped, E-shaped, H-shaped, S-shaped, grid-shaped, comb-shaped, and ring-shaped.
  • the antenna provided by the invention can be in the form of PCB or flexible circuit board (FPC), and the antenna is directly engraved on the circuit board, or connected by welding, cable, etc., and the antenna is connected to the circuit board, compared with other terminals.
  • the above-mentioned PIFA antenna and monopole antenna eliminate the cost of separately manufacturing the antenna bracket, mold opening, etc., reducing project expenses and reducing costs; and the invention provides a small antenna height, which satisfies the ultra-thin wireless The design of the terminal is required.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明提供了一种无线终端及其天线,所述天线包括:匹配电路、与匹配电路相连的天线馈线、接地元件、金属辐射单元;其中,接地元件位于金属辐射单元的周围,且与金属辐射单元之间留有缝隙。本发明通过把天线直接刻在电路板上,或通过焊接、线缆等连接,将天线连接到电路板上,相较与其他终端上使用的PIFA天线或单极子天线等省去了单独制作天线支架、开模等费用,减少了项目开支,降低了成本;而且天线的性能能够满足多频天线的性能要求,天线的高度较小,很好地满足了无线终端的结构设计需要。

Description

一种无线终端及其天线 技术领域
本发明涉及无线终端技术领域, 尤其涉及一种无线终端及其天线。 背景技术
随着无线通信技术的发展和普及, 无线网卡等无线终端受到越来越多 消费者的喜爱。 为了吸引更多消费者的关注, 低成本、 超薄时尚的外观、 高性能、 低辐射的无线终端已经成为无线终端生产厂商的重要研究对象。
天线作为无线终端产品的重要组成部分, 不仅直接影响无线终端通信 的收发性能, 天线的高度也是影响无线终端外观厚度的重要因素。 目前如 何能在有限的高度内, 设计一款既可以满足结构要求, 也可以满足天线性 能指标要求的天线成为多数无线终端生产厂家面临的难题。
现有技术中, 无线终端通常使用的天线为 PIFA天线、 单极子天线等, 此时, 则需要单独制作该天线及天线支架, 增加了项目开支, 成本较高。 发明内容
有鉴于此, 本发明的主要目的在于提供一种无线终端及其天线, 满足 多频天线的性能要求及无线终端的结构要求。
为达到上述目的, 本发明的技术方案是这样实现的:
一种无线终端天线, 所述天线包括: 匹配电路、 与匹配电路相连的天 线馈线、 接地元件、 金属辐射单元; 其中,
所述接地元件位于金属辐射单元的周围, 且与所述金属辐射单元之间 留有缝隙。
进一步地, 所述天线馈线的形状为直线和 /或曲线, 位于电路板的表层 或中间层。
进一步地, 所述匹配电路与天线馈点相连。
进一步地,所述缝隙的宽度范围为 0.1-lmm,缝隙内设置有天线匹配点。 进一步地, 所述金属辐射单元包括第一金属辐射单元和第二金属辐射 单元, 所述天线馈线将能量传给与自身相连的第一金属辐射单元或第二金 属辐射单元, 与第二金属辐射单元或第一金属辐射单元进行耦合馈电; 或 者,
所述天线馈线与第一金属辐射单元和第二金属辐射单元不相连接, 直 接与所述第一金属辐射单元和第二金属辐射单元进行耦合馈电。
进一步地, 所述天线馈线与第一金属辐射单元或第二金属辐射单元直 接相连, 或所述天线馈线与第一金属辐射单元或第二金属辐射单元平行重 合, 通过过孔相互连接。
进一步地, 所述第一金属辐射单元位于所述电路板的正面部分的表层 或介质板内, 所述第二金属辐射单元位于所述电路板的背面部分的表层或 介质板内。
进一步地, 所述第一金属辐射单元与第二金属辐射单元之间为绝缘介 质, 通过通孔、 过孔、 或埋孔相互连接。
进一步地, 所述接地元件以分块独立的形式分布在金属辐射单元的周 围, 独立的接地元件之间通过串联电子器件相连; 或者,
所述接地元件以整体的形式分布在金属辐射单元的周围。
进一步地, 所述金属辐射单元的形状为矩形、 圓形、 菱形、 梯形、 三 角形的一种或多种。
进一步地, 所述金属辐射单元设置有开槽, 所述开槽的形状为长方形、 F型、 E型、 H型、 S型、 栅状型、 梳齿型、 环型的一种或多种。
一种无线终端, 所述无线终端包括位于该无线终端的电路板上的天线, 所述天线包括: 匹配电路、 与匹配电路相连的天线馈线、 接地元件、 金属 辐射单元; 其中
所述接地元件位于金属辐射单元的周围, 且与所述金属辐射单元之间 留有缝隙。
进一步地, 所述金属辐射单元包括第一金属辐射单元和第二金属辐射 单元, 所述天线馈线将能量传给与自身相连的第一金属辐射单元或第二金 属辐射单元, 与第二金属辐射单元或第一金属辐射单元进行耦合馈电; 或 者,
所述天线馈线与第一金属辐射单元和第二金属辐射单元不相连接, 直 接与所述第一金属辐射单元和第二金属辐射单元进行耦合馈电。
进一步地, 所述第一金属辐射单元与第二金属辐射单元之间为绝缘介 质, 通过通孔、 过孔、 或埋孔相互连接;
所述第一金属辐射单元和 /或第二金属辐射单元设置有开槽, 所述开槽 的形状为长方形、 F型、 E型、 H型、 S型、 栅状型、 梳齿型、 环型的一种 或多种。
本发明基于无线终端的电路板进行天线结构的设计, 将天线直接刻在 电路板上, 或通过焊接、 线缆等连接, 将天线连接到电路板上, 相较与其 他终端上使用的 PIFA天线或单极子天线等省去了单独制作天线支架、开模 等费用, 减少了项目开支, 降低了成本; 而且天线的性能能够满足多频天 线的性能要求, 天线的高度较小, 很好地满足了无线终端的结构设计需要。 附图说明
图 1为本发明无线终端天线的结构示意图;
图 2为图 1所示无线终端天线的横截面示意图;
图 3为本发明无线终端天线的实施例一的结构示意图。 具体实施方式
本发明的基本思想为: 在无线终端的电路板上进行天线的布线, 根据 不同的介质及天线的工作频率, 确定天线的占用面积, 天线的布线可以为 电路板的单层板或多层板布线, 具体釆用开槽和耦合的方式辐射电磁波信 号。
为使本发明的目的、 技术方案和优点更加清楚明白, 以下举实施例并 参照附图, 对本发明进一步详细说明。
图 1和图 2分别示出了本发明的无线终端天线的俯视结构和横截面结 构的示意,本发明实施例是以单面挖槽的印刷电路板( Printed Circuit Board, PCB )天线为例进行的说明, 具体为在无线终端的 PCB上的一块无其他元 器件布局的区域, 进行 PCB天线的布局, 该区域面积大概可以为 360平方 毫米左右, 面积的大小还可以根据介质、 天线的工作频率、 天线匹配电路 的影响进行灵活调整, 本发明所提供的 PCB天线的最小面积可以达到 200 平方毫米左右。
PCB天线的俯视结构参照图 1 , PCB天线的上表层部分包括接地元件 11、 第一金属辐射单元 13、 位于第一金属辐射单元 13的 H型开槽线 14、 第一金属辐射单元 13与接地元件 11之间留有的缝隙 19;本发明实施例中, PCB天线下表层部分的结构与上表层相同, 但位于 PCB天线下表层的第二 金属辐射单元 12未设置有开槽线, 开槽线的形状可以根据实际耦合效果, 设置为长方形、 F型、 E型、 H型、 S型、 栅状型、 梳齿型、 环型等规则或 不规则的形状、 或几种形状的组合; 第一金属辐射单元 13与第二金属辐射 单元 12之间为绝缘介质, 通过通孔、 过孔、 或埋孔相互连接; 另外, 缝隙 19处还可以设置有天线匹配点 18;
PCB天线还包括天线馈点 17、 匹配电路 16、 与匹配电路 16相连的天 线馈线 15; 其中, 天线馈线 15可以位于 PCB天线的表层或中间层, 其形 状可以是直线、 曲线、 或直线和曲线的组合, 例如图 1中示出的为 0型曲 线和直线的组合; 其宽度可以根据实际的需要进行调整;
天线馈线 15 可以与第一金属辐射单元 13和 /或第二金属辐射单元 12 直接相连, 也可以与第一金属辐射单元 13和 /或第二金属辐射单元 12平行 重合布置,通过小的过孔与所述第一金属辐射单元 13和 /或第二金属辐射单 元 12相连;或天线馈线 15与第一金属辐射单元 13和第二金属辐射单元 12 均不相连, 形成耦合馈电; 具体是否连接可以根据仿真或者实际调试情况 决定。
参照图 2,本发明实施例中的天线馈线 15位于第一金属辐射单元 13和 第二金属辐射单元 12之间, 第一金属辐射单元 13和第二金属辐射单元 12 之间可以填充绝缘介质 20, 天线馈线 15与匹配电路 16相连, 匹配电路 16 与天线馈点 17相连, 天线馈线 15的长度和宽度可以根据天线的仿真结果 进行调整, 以优化天线谐振。
另外, 在 H型开槽线 14的缝隙处还可以设置有匹配点, 所述匹配点可 以根据实际需要进行调整, 具体可以为电容、 电感、 电阻中的一种或多种, 用以调节天线的回波损耗的深浅, 其也可以位于第一金属辐射单元 13的表 面。
具体地, 图 1所示的接地元件 11是以分块独立的形式分布在第一金属 辐射单元 13的周围, 独立的接地元件 11之间可以通过串联电子器件 10进 行连接, 用来调节天线的谐振, 其中电子器件 10可以为电容、 电感、 电阻 中的一种或多种; 另外, 接地元件 11也可以以整体的形式分布在第一金属 辐射单元 13的周围, 或以图 1所示的接地元件 11 中独立的两块、 或三块 等作为一个整体, 与剩余的接地元件 11通过电子器件 10连接, 分布在第 一金属辐射单元 13的周围, 达到调整天线谐振频率和带宽的目的; 在实际 应用中, 也可以才艮据调试情况减少接地元件 11 的分布, 例如接地元件 11 可以分布在第一金属辐射单元 13的两侧、 或三侧等情况。 应当理解, 上述 设置同样适应于 PCB下表层的天线部分, 另外,在对上述 PCB天线进行性 能调试的过程中, 也可以在第二金属辐射单元 12处设置有开槽, 以加强天 线之间的耦合, 以更好地满足需求。
另外, 缝隙 19的宽度可以根据所需天线的谐振频率等进行调整, 一般 地, 该宽度范围通常为 0.1-lmm之间; 天线匹配点 18也可以根据实际情况 进行设置, 用于调整天线谐振点的位置, 具体可以为一个、 两个或多个的 组合等等。
第一金属辐射单元 13和第二金属辐射单元 12的形状及尺寸可以根据 实际需要进行调整, 可以是矩形、 圓形、 菱形、 梯形、 三角形等等任意规 则或不规则的形状, 也可以是由具有上述形状的数个 d、的金属辐射单元组 成; 而且可以根据天线谐振频率的需要设置第一金属辐射单元 13和第二金 属辐射单元 12的数量。 而且第二金属辐射单元 12和第一金属辐射单元 13 可以位于 PCB的表层、或 PCB正面和背面之间的中间层的介质板中。应当 理解, 在具体实现时, 所述 PCB天线还可以是包括三个金属辐射单元的三 层结构或多个金属辐射单元的多层结构等, 尤其是当对天线性能要求不高 时, 还可以是只包括一个金属辐射单元的单层结构。
图 3示出了本发明的无线终端天线的实施例一的结构示意, 如图 3所 示, PCB天线位于下表层的第二金属辐射单元 12是由 12个矩形形状的小 金属辐射单元组成, 其余结构与图 1所示的天线结构相同, 不再赘述。
本发明还提供了一种具有上述天线的无线终端, 该无线终端的天线位 于该无线终端的电路板上, 所述天线包括: 匹配电路、 与匹配电路相连的 天线馈线、 接地元件、 金属辐射单元; 其中所述接地元件位于金属辐射单 元的周围, 且与金属辐射单元之间留有缝隙。
进一步地, 所述天线包括二个金属辐射单元时, 所述天线馈线将能量 传给与自身相连的第一金属辐射单元或第二金属辐射单元, 与第二金属辐 射单元或第一金属辐射单元进行耦合馈电; 或者,
所述天线馈线与第一金属辐射单元和第二金属辐射单元不相连接, 直 接与所述第一金属辐射单元和第二金属辐射单元进行耦合馈电。
进一步地, 所述第一金属辐射单元与第二金属辐射单元之间为绝缘介 质, 通过通孔、 过孔、 或埋孔相互连接;
所述第一金属辐射单元和 /或第二金属辐射单元设置有开槽, 所述开槽 的形状为长方形、 F型、 E型、 H型、 S型、 栅状型、 梳齿型、 环型的一种 或多种。
本发明提供的天线可以釆用 PCB形式或柔性电路板 ( FPC )形式, 把 天线直接刻在电路板上, 或通过焊接、 线缆等连接, 将天线连接到电路板 上,相较与其他终端上的 PIFA天线和单极子天线等省去了单独制作天线支 架、 开模等费用, 减少了项目开支, 降低了成本; 而且本发明提供的天线 高度较小, 很好地满足了超薄无线终端的设计需要。
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。

Claims

权利要求书
1、 一种无线终端天线, 其特征在于, 所述天线包括: 匹配电路、 与匹 配电路相连的天线馈线、 接地元件、 金属辐射单元; 其中,
所述接地元件位于金属辐射单元的周围, 且与所述金属辐射单元之间 留有缝隙。
2、 根据权利要求 1所述的天线, 其特征在于, 所述天线馈线的形状为 直线和 /或曲线, 位于电路板的表层或中间层。
3、 根据权利要求 1所述的天线, 其特征在于, 所述匹配电路与天线馈 点相连。
4、 根据权利要求 1所述的天线, 其特征在于, 所述缝隙的宽度范围为
0.1-lmm, 缝隙内设置有天线匹配点。
5、 根据权利要求 1所述的天线, 其特征在于, 所述金属辐射单元包括 第一金属辐射单元和第二金属辐射单元, 所述天线馈线将能量传给与自身 相连的第一金属辐射单元或第二金属辐射单元, 与第二金属辐射单元或第 一金属辐射单元进行耦合馈电; 或者,
所述天线馈线与第一金属辐射单元和第二金属辐射单元不相连接, 直 接与所述第一金属辐射单元和第二金属辐射单元进行耦合馈电。
6、 根据权利要求 5所述的天线, 其特征在于, 所述天线馈线与第一金 属辐射单元或第二金属辐射单元直接相连, 或所述天线馈线与第一金属辐 射单元或第二金属辐射单元平行重合, 通过过孔相互连接。
7、 根据权利要求 5所述的天线, 其特征在于, 所述第一金属辐射单元 位于所述电路板的正面部分的表层或介质板内, 所述第二金属辐射单元位 于所述电路板的背面部分的表层或介质板内。
8、 根据权利要求 5所述的天线, 其特征在于, 所述第一金属辐射单元 与第二金属辐射单元之间为绝缘介质, 通过通孔、 过孔、 或埋孔相互连接。
9、 根据权利要求 1所述的天线, 其特征在于, 所述接地元件以分块独 立的形式分布在金属辐射单元的周围, 独立的接地元件之间通过串联电子 器件相连; 或者,
所述接地元件以整体的形式分布在金属辐射单元的周围。
10、 根据权利要求 1 所述的天线, 其特征在于, 所述金属辐射单元的 形状为矩形、 圓形、 菱形、 梯形、 三角形的一种或多种。
11、 根据权利要求 1至 10任一项所述的天线, 其特征在于, 所述金属 辐射单元设置有开槽, 所述开槽的形状为长方形、 F型、 E型、 H型、 S型、 栅状型、 梳齿型、 环型的一种或多种。
12、 一种无线终端, 其特征在于, 所述无线终端包括位于该无线终端 的电路板上的天线, 所述天线包括: 匹配电路、 与匹配电路相连的天线馈 线、 接地元件、 金属辐射单元; 其中
所述接地元件位于金属辐射单元的周围, 且与所述金属辐射单元之间 留有缝隙。
13、 根据权利要求 12所述的无线终端, 其特征在于, 所述金属辐射单 元包括第一金属辐射单元和第二金属辐射单元, 所述天线馈线将能量传给 与自身相连的第一金属辐射单元或第二金属辐射单元, 与第二金属辐射单 元或第一金属辐射单元进行耦合馈电; 或者,
所述天线馈线与第一金属辐射单元和第二金属辐射单元不相连接, 直 接与所述第一金属辐射单元和第二金属辐射单元进行耦合馈电。
14、 根据权利要求 13所述的无线终端, 其特征在于, 所述第一金属辐 射单元与第二金属辐射单元之间为绝缘介质, 通过通孔、 过孔、 或埋孔相 互连接;
所述第一金属辐射单元和 /或第二金属辐射单元设置有开槽, 所述开槽 的形状为长方形、 F型、 E型、 H型、 S型、 栅状型、 梳齿型、 环型的一种 或多种。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1734836A (zh) * 2004-08-10 2006-02-15 富士康(昆山)电脑接插件有限公司 天线
CN201008021Y (zh) * 2007-01-23 2008-01-16 富港电子(东莞)有限公司 平面天线
CN201699127U (zh) * 2009-12-10 2011-01-05 柏腾科技股份有限公司 多频平面天线
CN102157779A (zh) * 2011-01-27 2011-08-17 中兴通讯股份有限公司 一种无线终端及其天线

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101888016A (zh) * 2010-06-21 2010-11-17 哈尔滨工程大学 带有陷波特性的超宽带天线

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1734836A (zh) * 2004-08-10 2006-02-15 富士康(昆山)电脑接插件有限公司 天线
CN201008021Y (zh) * 2007-01-23 2008-01-16 富港电子(东莞)有限公司 平面天线
CN201699127U (zh) * 2009-12-10 2011-01-05 柏腾科技股份有限公司 多频平面天线
CN102157779A (zh) * 2011-01-27 2011-08-17 中兴通讯股份有限公司 一种无线终端及其天线

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