WO2012100475A1 - 一种天线、天线装置及无线终端 - Google Patents

一种天线、天线装置及无线终端 Download PDF

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Publication number
WO2012100475A1
WO2012100475A1 PCT/CN2011/074695 CN2011074695W WO2012100475A1 WO 2012100475 A1 WO2012100475 A1 WO 2012100475A1 CN 2011074695 W CN2011074695 W CN 2011074695W WO 2012100475 A1 WO2012100475 A1 WO 2012100475A1
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WIPO (PCT)
Prior art keywords
component
antenna
grounding
radiating
pcb substrate
Prior art date
Application number
PCT/CN2011/074695
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English (en)
French (fr)
Inventor
秦玉峰
Original Assignee
中兴通讯股份有限公司
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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 WO2012100475A1 publication Critical patent/WO2012100475A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/1207Supports; Mounting means for fastening a rigid aerial element
    • 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

Definitions

  • Antenna, antenna device and wireless terminal are antenna, antenna device and wireless terminal
  • the present invention relates to the field of wireless communication technologies, and in particular, to an antenna, an antenna device, and a wireless terminal.
  • WLAN Wireless Local Area Network
  • PIFA Planar Inverted F Antenna
  • the unique feature of the PIFA antenna is that its resonant frequency depends not only on the length of the shorting arm, but also on the other dimensions of the arm width, arm height, and distance between the feed point and the shorting arm.
  • 1 is a perspective view of a prior art PIFA antenna.
  • the PIFA antenna shown in Fig. 1 comprises: an antenna body composed of a short-circuiting component 21 and a radiating component 22; a transmission component consisting of an inner conductor 31 and an outer conductor 32 for transmitting signals to the antenna body.
  • the radiation component 22 is vertically connected to one end of the short-circuiting component 21, and the other end of the short-circuiting component 21 is soldered to a printed circuit board (PCB) substrate 1; wherein one end of the inner conductor 31 of the transmission component is soldered to the radiation On the assembly 22, the outer conductor 32 of the transfer assembly is soldered to the PCB substrate 1.
  • PCB printed circuit board
  • FIG. 1 there is a solder joint between the antenna body and the PCB substrate 1, a solder joint between the transmission component and the PCB substrate 1, and a solder joint between the transmission component and the antenna body.
  • 2 is a perspective view of another prior art PIFA antenna.
  • the shorting component 21, the radiating component 22 and the transmitting component 23 together comprise an antenna body.
  • the radiating element 22 is vertically connected to the short-circuiting component 21, and the other end of the short-circuiting component 21 is soldered to the PCB substrate 1;
  • One end of the crucible is attached to the radiation assembly 22 and perpendicular to the radiation assembly 22;
  • the other end of the transmission assembly 23 is soldered to the PCB substrate 1.
  • the antenna body has two solder joints with the PCB substrate 1.
  • the connection between the antenna body and the PCB substrate 1 has only one solder joint, which is easy to solder; the transmission component and the PCB substrate, and the transmission component and the antenna body also have only one solder joint, and are also easy to solder.
  • the connection between the antenna body and the PCB substrate 1 has two solder joints and the two solder joints are in a straight line, so that the antenna is easily tilted to both sides, and the shape of the antenna is easily changed.
  • the electrical performance and stability are also not guaranteed.
  • a certain area of clear space must be provided on the PCB substrate 1 below the antenna body, that is, the PCB substrate under the antenna body is required to have a certain area of copper plating. There can be no other components.
  • the technical problem to be solved by the present invention is to provide an antenna, an antenna device, and a wireless terminal, which solve the problems of poor stability of installation, large antenna size, and poor electrical performance of existing antennas.
  • the present invention provides an antenna device, which includes: a PCB substrate 1 and an antenna body 10, the antenna body 10 is an integrated structure, and at least two mounting components 15 and an antenna are mounted. A connection point of the body itself is fixedly connected to the PCB substrate 1.
  • the antenna body 10 includes a radiating component 11 and a short circuit group.
  • the transmission component 13 is perpendicularly connected to the radiation component 11 and is in the same plane as the short-circuit component 12, and the other end of the transmission component 13 is soldered on the PCB substrate 1; the at least two mounting and fixing components 15 are grounded.
  • the narrow sides of the assembly 14 or the wide sides, the at least two mounting fixtures 15 are connected to the PCB substrate 1 by plugging and/or soldering.
  • the outer side or the inner side of the mounting and fixing assembly 15 has an anti-slip assembly 16.
  • the form of the anti-skid assembly includes a barb or a triangular cone.
  • the grounding member 14 is a rectangular metal piece.
  • the length of the grounding component 14 is greater than the length of the radiating component 11, and the width of the grounding component 14 is greater than the width of the radiating component 11.
  • the PCB substrate comprises a substrate and a copper foil, the copper foil is attached to the surface of the substrate; the material of the substrate comprises FR4 or Rogers; and the material of the copper foil comprises copper, gold, silver or an alloy conductor;
  • the material of the antenna body 10 includes copper, and an alloy of tinplate and copper or iron.
  • the present invention also provides an antenna, the antenna comprising: a radiating component 11, a shorting component 12, a transmitting component 13, and a grounding component 14, wherein: both ends of the shorting component 12 Vertically connected between the radiating component 11 and the grounding component 14 which are parallel to each other, the radiating component 11 and the grounding component 14 are located on the same side of the short-circuiting component 12; one end of the transmitting component 13 is perpendicularly connected to the radiating component 11, and the short-circuiting component 12 Located on the same plane, the other end of the transmission assembly 13 is for solder mounting on the PCB substrate 1; the narrow sides or the wide sides of the grounding assembly 14 are included for plugging or soldering onto the PCB substrate 1.
  • the fixing assembly 15 is mounted. In the antenna of the present invention, the outer side or the inner side of the mounting and fixing assembly 15 has an anti-slip component
  • the form of the anti-skid assembly includes a barb or a triangular cone.
  • the present invention also provides a wireless terminal, the wireless terminal includes an antenna device, and the antenna device includes: a PCB substrate 1 and an antenna body 10, wherein the antenna body 10 is an integrated structure. At least two mounting fixing members 15 and a connection point of the antenna body itself are fixedly connected to the PCB substrate 1.
  • the antenna body 10 includes a radiating component 11, a shorting component 12, a transmitting component 13, and a grounding component 14, wherein: the two ends of the shorting component 12 are vertically connected to each other in parallel Between the radiating component 11 and the grounding component 14, the radiating component 11 and the grounding component 14 are located on the same side of the short-circuiting component 12; one end of the transmitting component 13 is perpendicularly connected to the radiating component 11 and is in the same plane as the short-circuiting component 12, and the transmitting component The other end of the 13 is soldered to the PCB substrate 1; the at least two mounting and fixing components 15 are located on both sides or the wide side of the narrow side of the grounding assembly 14, and the at least two mounting and fixing components 15 are plugged and/or The soldering method is connected to the PCB substrate 1.
  • the outer side or the inner side of the mounting fixing member 15 has an anti-slip assembly 16.
  • the grounding component 16 In the wireless terminal of the present invention, the grounding
  • the length of the 14 is greater than the length of the radiating element 11, and the width of the grounding member 14 is greater than the width of the radiating element 11.
  • the antenna, the antenna device and the wireless terminal of the invention can integrate the antenna structure, reduce the size and space of the antenna, facilitate the mass production of the antenna, and ensure the consistency of the antenna electrical performance, so that the antenna or the antenna device is applied.
  • Wireless terminals get better wireless transmission and reception.
  • the antenna device can effectively enhance the fixing effect; further, the antenna device of the present invention can also use machine patches, without manual welding, to improve product consistency, greatly improve production efficiency, reduce labor costs, and facilitate application to a large number of WLAN products. on.
  • FIG. 1 is a perspective view of a conventional PIFA antenna solution
  • FIG. 2 is a perspective view of another conventional PIFA antenna solution
  • FIG. 3 is a perspective view of an antenna structure according to an embodiment of the present invention
  • It is an enlarged schematic structural view of the antenna body shown in FIG. 3 in the embodiment of the present invention.
  • the present invention modifies the traditional PIFA antenna structure based on the design of the traditional PIFA antenna, and provides a new antenna body design and corresponding antenna.
  • the antenna, the antenna device and the wireless terminal provided by the invention can be applied to the 2.4 ⁇ 2.5 GHz frequency band, including WLAN and Bluetooth.
  • the improved antenna device comprises: a PCB substrate, and an antenna body, wherein the antenna body is an integrated structure, and is fixedly connected to the PCB substrate by at least two mounting fixing components and a connection point of the antenna body itself.
  • the antenna body includes a radiating component, a shorting component, a transmitting component, and a grounding component.
  • connection point of the antenna body itself is a transmission component and a PCB
  • the point grounding component is a rectangular metal piece parallel to the PCB substrate, the short circuit component is connected to one side of the wide side of the grounding component, and perpendicular to the grounding component, and extends in the first direction; the other end of the short circuit component is connected to the radiation component, and
  • the radiating component is perpendicular to the shorting component, parallel to the grounding component, the grounding component and the radiating component are on the same side of the shorting component; and the transmitting component is coupled to the radiating component and perpendicular to the radiating component, in the same plane as the shorting component, and the transmitting component is another One end is soldered and mounted on the PCB substrate.
  • the two sides of the narrow side of the grounding component and the other side of the wide side are connected to at least two mounting fixing components.
  • the mounting fixing component is perpendicular to the grounding component and extends in a direction opposite to the radiating component, and is soldered to the PCB substrate.
  • the anti-slip component includes but is not limited to barbs and triangular cones.
  • the anti-slip component prevents the antenna from falling off after being mounted on the PCB substrate, facilitating the wave soldering of the antenna. Manual welding is required.
  • the two mounting fixtures and the transmission components form a triangle to prevent the antenna from shaking.
  • the area of the grounding component in the antenna body is slightly larger than the area of the radiating component, and as a reference ground plane of the radiating component, the dependence of the antenna on the PCB substrate is reduced.
  • the antenna body described above may be placed at any position on the outer edge of the PCB substrate. The detailed structure of the above antenna and antenna device will be specifically described below with reference to the drawings.
  • FIG. 3 a schematic perspective view of an antenna device according to an embodiment of the present invention is shown.
  • the antenna device includes: a PCB substrate 1 and an antenna body 10, and the antenna body 10 is fixedly connected to the PCB substrate. on.
  • the antenna body 10 includes a radiating component 11, a shorting component 12, a transmitting component 13, and a grounding component 14. As shown in FIG.
  • the radiating element 11 is connected to one end of the short-circuiting component 12, perpendicular to the short-circuiting component, and extends in the first direction;
  • the transmitting component 13 is connected to the radiating component 11, and is perpendicular to the radiating component 11, and the transmitting component 13 is further One end is mounted on the PCB substrate 1;
  • the other end of the short-circuiting component 12 is connected to the grounding component 14, and the grounding component 14 is perpendicular to the short-circuiting component 12, parallel to the radiating component 11;
  • the component 14 and the radiating component 11 are on the same side of the short-circuiting component 12, and each of the two sides of the grounding component 14 extends (ie, on both sides of the long side) with a mounting and fixing component 15;
  • the mounting and fixing component 15 is perpendicular to the grounding component 14, And extending in the direction opposite to the radiating element (ie, the radiating element is above the grounding
  • the outer side of the mounting fixture 15 (which may also be disposed on the inner side) has an anti-slip assembly 16 which includes, but is not limited to, a barb, and a protruding member such as a triangular cone.
  • the anti-slip assembly 16 prevents the antenna body 10 from being installed. Falling off after the PCB substrate 1 facilitates wave soldering of the antenna without manual soldering.
  • the area of the grounding assembly 14 is slightly larger than the area of the radiating element 11 as a reference ground plane for the radiating element.
  • the PCB substrate 1 is composed of a substrate and a copper foil attached to the surface of the substrate.
  • the material of the substrate includes but is not limited to FR4, Rogers and other PCB sheet materials; the material of the copper foil includes but is not limited to good conductors such as copper, gold, silver or alloy.
  • Materials of the antenna body 10 include, but are not limited to, copper, tinplate, alloys thereof, and the like. As shown in FIG. 4, the present embodiment also gives size information of each component of the antenna body 10.
  • the thickness T1 of the antenna radiating element 11 and other components is about 0.15-0.35 mm
  • the length L1 of the radiating element 11 is about 29-33 mm
  • the width W1 is about 6-8 mm
  • the distance HI of the radiating element 11 to the grounding component 14 is about HI. 5-7 mm
  • the distance between the transmission assembly 13 and the short-circuiting assembly 12 is 1-4 mm.
  • the length and width of the grounding assembly 14 are slightly larger than the length and width of the radiating element 11, the transmission assembly
  • the length of 13 is slightly larger than the length of the short-circuiting component 12 and the thickness of the PCB substrate 1; the height of the mounting fixing component 15 is slightly larger than the thickness of the PCB substrate 1.
  • the present application also performs a test on the standing wave ratio based on the antenna structure shown in Figs. 3 and 4. In the test results, when the antenna operates at a frequency of about 2.44 GHz, the standing wave ratio is about 1.09. If the standing wave ratio is equal to 2, the frequency range is about 2.38 GHz to 2.52 GHz, which satisfies the WLAN 2.4 GHz-2.4835 GHz. Claim. Tests have shown that the antenna bandwidth characteristics and standing wave requirements of the antenna structure shown in Figures 3 and 4 are quite excellent. The present application also performs measurement of radiation characteristics based on the antenna structure shown in FIGS. 3 and 4. Medium,
  • the antenna gain is about 2 dB and the efficiency is 78.06%.
  • the antenna gain is about 2.55 dB, the efficiency is 81.28%;
  • the frequency is about 2.472GHz, the antenna gain is about 2.59dB, and the efficiency is
  • the test results show that the antenna structure shown in FIG. 3 and FIG. 4 exhibits a fairly excellent radiation pattern in the WLAN frequency band, which is sufficient for the user's requirements.
  • the novel antenna and antenna device provided by the invention are integrated design, all structural components of the antenna body are integrated, the production is simple, only the production mold is produced, and the production precision is high; no manual welding is required, and the patch is easy to be used. High consistency, ensuring consistent performance; low PCB substrate requirements, antenna body can be placed around the PCB substrate, no special requirements for PCB substrate; low manufacturing cost; small size, low profile, low standing wave ratio, gain Large, efficient.
  • the embodiment further provides a wireless terminal to which the antenna device is applied.
  • the antenna device of the wireless terminal includes: a PCB substrate 1 and an antenna body 10, and the antenna body 10
  • the integrated structure is fixedly connected to the PCB substrate 1 through at least two mounting fixing components 15 and a connection point of the antenna body itself.
  • the antenna body 10 includes a radiating component 11, a shorting component 12, a transmitting component 13, and a grounding component 14, wherein: the two ends of the shorting component 12 are vertically connected to the radiating component 11 and the grounding component 14 which are parallel to each other.
  • the radiating component 11 and the grounding component 14 are located on the same side of the short-circuiting component 12; one end of the transmitting component 13 is perpendicularly connected to the radiating component 11 and is in the same plane as the short-circuiting component 12, and the other end of the transmitting component 13 is soldered to the PCB.
  • the at least two mounting and fixing components 15 are located on both sides or the wide side of the narrow side of the grounding assembly 14, and the at least two mounting and fixing components 15 are connected to the PCB substrate 1 by plugging and/or soldering.
  • the area of the ground assembly 14 is slightly larger than the area of the radiating element 11.
  • the outer side or the inner side of the mounting and fixing assembly 15 has an anti-slip assembly 16.
  • the grounding component 14 is a rectangular metal piece; the length of the grounding component 14 is greater than the length of the radiating component 11 and its width is greater than the width of the radiating component 11.
  • the antenna, the antenna device and the wireless terminal of the present invention can integrate the antenna structure, reduce the size and space of the antenna, facilitate the mass production of the antenna, and ensure the consistency of the antenna electrical performance, so that the antenna or the antenna is applied.
  • the wireless terminal of the antenna device obtains better wireless transceiving effects.
  • the antenna body can be fixed on the PCB substrate by using two mounting and fixing components and the transmission component on the antenna, thereby effectively strengthening the fixing effect; further, the antenna device of the invention can also use the machine patch, without manual welding. Improve product consistency, significantly increase production efficiency, reduce labor costs, and facilitate the application of a large number of applications to WLAN products.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

本发明公开了一种天线、天线装置及无线终端。所述天线装置包括:一PCB基板(1),以及一天线本体(10),所述天线本体(10)为一体化结构,通过至少两个安装固定组件(15)及天线本体自身的一个连接点固定连接在PCB基板(1)上。本发明可以使天线结构一体化,减小天线的尺寸以及占用空间。

Description

一种天线、 天线装置及无线终端
技术领域 本发明涉及无线通信技术领域, 尤其涉及一种的天线、 天线装置及无线 终端。
背景技术
随着无线局域网 ( Wireless Local Area Network, WLAN )技术的蓬勃发 展, 无线网络的应用领域正在不断地增长, 使得无线接入设备的应用成为室 内微小地区 (尤其是热点地区)重要的高速无线数据接入手段之一, 应用潜 力巨大。飞速增长的无线局域网技术引导了对 WLAN设备的天线设计的新要 求, 这些新要求包括: 尺寸小, 低轮廓, 低成本, 以及易安装。 但天线设计 者在设计天线时遇到如何能够保持天线的性能不变而天线尺寸变小的问题。 平面倒 F型天线( Planar Inverted F Antenna, PIFA )是广泛釆用的天线 类型。 PIFA天线的独特特点在于其谐振频率不仅仅依赖短路臂的长度,还依 赖于臂宽、 臂高、 和馈点和短路臂的距离等其他的尺寸。 图 1是现有技术的一种 PIFA天线的立体示意图。图 1所示的 PIFA天线 包括: 由短路组件 21和辐射组件 22组成的天线本体; 由内导体 31和外导体 32组成的传输组件, 该传输组件用于将信号传送至天线本体。 其中, 辐射组 件 22垂直连接在短路组件 21的一端上,短路组件 21的另一端焊接在印制板 ( Printed Circuit Board, PCB )基板 1上; 其中, 传输组件的内导体 31的一 端焊接在辐射组件 22上,传输组件的外导体 32焊接在 PCB基板 1上。 由上 描述可知, 在图 1中, 天线本体与 PCB基板 1之间有一个焊点, 传输组件与 PCB基板 1之间有一个焊点, 以及传输组件与天线本体之间有一个焊点。 图 2是现有技术的另外一种 PIFA天线的立体示意图。 在图 2中, 短路 组件 21、 辐射组件 22和传输组件 23共同组成天线本体。 其中, 辐射组件 22 垂直连接在短路组件 21上,短路组件 21的另一端焊接在 PCB基板 1上; 传 々一端连接在辐射组件 22上并且垂直于辐射组件 22;传输组件 23 的另外一端焊接在 PCB基板 1 上。 由上述连接关系可知, 所述天线本体与 PCB基板 1有两个焊点。 对于图 1所示的天线而言,天线本体与 PCB基板 1的连接只有一个焊点, 容易焊歪; 传输组件与 PCB基板、 以及传输组件与天线本体也都只有一个焊 点, 也容易焊歪; 这就造成天线的外形容易发生变化, 不仅会增加人工成本 和焊接难度, 而且天线的电性能及稳固性都无法得到保证。 对于图 2所示的天线而言,天线本体与 PCB基板 1的连接有两个焊点且 两个焊点在一条直线上, 造成天线很容易向两侧倾斜, 天线的外形容易发生 变化, 天线的电性能及稳固性也都得不到保证。 此外,对于图 1及图 2所示的两种现有方案,在天线本体下方的 PCB基 板 1上必须要具有一定面积的净空间,即要求天线本体下方的 PCB基板有一 定面积的铺铜, 且不能有其它元器件存在, 一旦满足不了该要求, 天线的电 性能会有很大的下降, 这就对天线设计带来很大的难题。 因此, 这就需要发展一种新的 PIFA天线, 用以适应尺寸小, 低轮廓, 低成本, 易安装的要求, 使得天线可以更佳地应用到 WLAN产品中。
发明内容 本发明所要解决的技术问题在于,提供一种天线、天线装置及无线终端, 以解决现有天线所存在的安装稳固性差、 天线尺寸较大、 以及电性能差的问 题。
为了解决上述问题, 本发明提出了一种天线装置, 该天线装置包括: 一 PCB基板 1 , 以及一天线本体 10, 所述天线本体 10为一体化结构, 通过至 少两个安装固定组件 15及天线本体自身的一个连接点固定连接在 PCB基板 1上。 本发明的天线装置中, 所述天线本体 10包括一辐射组件 11 , 一短路组 ^输组件 13 , 以及一接地组件 14, 其中: 所述短路组件 12的两端垂直连接于彼此平行的辐射组件 11和接地组件 14之间, 辐射组件 11和接地组件 14位于短路组件 12的同一侧; 所述传输组件 13的一端与辐射组件 11垂直连接,且与短路组件 12位于 同一平面, 传输组件 13的另一端焊接安装在 PCB基板 1上; 所述至少两个安装固定组件 15位于接地组件 14的窄边两侧或宽边侧, 所述至少两个安装固定组件 15以插接和 /或焊接方式连接在 PCB基板 1上。 本发明的天线装置中,所述安装固定组件 15的外侧或内侧具有防滑落组 件 16。 本发明的天线装置中, 所述防滑落组件的形式包括倒钩或三角锥。 本发明的天线装置中, 所述接地组件 14是长方形金属片。 本发明的天线装置中,所述接地组件 14的长度大于辐射组件 11的长度, 所述接地组件 14的宽度大于辐射组件 11的宽度。 本发明的天线装置中, 所述 PCB基板包括基材和铜箔,铜箔附在基材的 表面; 基材的材料包括 FR4或 Rogers; 铜箔的材料包括铜、 金、 银或者合金导体; 所述天线本体 10的材料包括铜、 以及马口铁及铜或铁的合金。 为了解决上述问题, 本发明还提出了一种天线, 所述天线包括: 一辐射 组件 11 , 一短路组件 12, —传输组件 13 , 以及一接地组件 14, 其中: 所述短路组件 12的两端垂直连接于彼此平行的辐射组件 11和接地组件 14之间, 辐射组件 11和接地组件 14位于短路组件 12的同一侧; 所述传输组件 13的一端与辐射组件 11垂直连接,且与短路组件 12位于 同一平面, 传输组件 13的另一端用于焊接安装在 PCB基板 1上; 接地组件 14的窄边两侧或宽边侧包括用于插接或焊接至 PCB基板 1上 安装固定组件 15。 本发明的天线中, 所述安装固定组件 15的外侧或内侧具有防滑落组件
16。 本发明的天线中, 所述防滑落组件的形式包括倒钩或三角锥。 为了解决上述问题, 本发明还提出了一种无线终端, 所述无线终端包括 天线装置, 该天线装置包括: 一 PCB基板 1 , 以及一天线本体 10, 所述天线本体 10为一体化结构, 通过至少两个安装固定组件 15 及天线本体自身的一个连接点固定连接在 PCB基板 1上。 本发明的无线终端中, 所述天线本体 10包括一辐射组件 11 , 一短路组 件 12, —传输组件 13 , 以及一接地组件 14, 其中: 所述短路组件 12的两端垂直连接于彼此平行的辐射组件 11和接地组件 14之间, 辐射组件 11和接地组件 14位于短路组件 12的同一侧; 所述传输组件 13的一端与辐射组件 11垂直连接,且与短路组件 12位于 同一平面, 传输组件 13的另一端焊接安装在 PCB基板 1上; 所述至少两个安装固定组件 15位于接地组件 14的窄边两侧或宽边侧, 所述至少两个安装固定组件 15以插接和 /或焊接方式连接在 PCB基板 1上。 本发明的无线终端中,所述安装固定组件 15的外侧或内侧具有防滑落组 件 16。 本发明的无线终端中,所述接地组件 14是长方形金属片; 所述接地组件
14的长度大于辐射组件 11的长度,所述接地组件 14的宽度大于辐射组件 11 的宽度。
本发明的天线、 天线装置及无线终端, 可以使天线结构一体化, 减小天 线的尺寸以及占用空间, 有利于天线的批量生产, 并保证天线电性能的一致 性, 使得应用天线或天线装置的无线终端获得更好的无线收发效果。 应用本 利用天线上的两个安装固定组件以及传输组件将天线本体固定在
PCB基板上, 有效加强固定效果; 进一步地, 本发明的天线装置还可以用机 器贴片, 不用人工焊接, 提高产品的一致性, 大幅提高生产效率, 降低人工 成本, 有利于大量应用到 WLAN产品上。
附图概述 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意图及其说明用于解释本发明, 并不构成对本发明的不当限 定, 在附图中: 图 1是一种传统技术的 PIFA天线方案的立体示意图; 图 2是另一种传统技术的 PIFA天线方案的立体示意图; 图 3是本发明实施例的一种天线结构的立体示意图; 图 4是本发明实施例中图 3所示的天线本体的放大结构示意图。
本发明的较佳实施方式 为使本发明的目的、 技术方案和优点更加清楚, 以下结合附图对本发明 作进一步地详细说明。 需要说明的是, 在不冲突的情况下, 本申请中的实施 例及实施例中的特征可以相互任意组合。 为解决传统技术中天线设计所存在的问题, 本发明在传统 PIFA天线设 计的基础上, 结合应用需求, 对传统的 PIFA天线结构进行了修改, 提供了 一种新的天线本体设计、 相应的天线装置以及应用天线装置的无线终端。 本 发明提供的天线、天线装置以及无线终端可以应用于 2.4~2.5GHz频段, 包括 WLAN以及蓝牙。 该改进的天线装置包括: 一 PCB基板, 以及一天线本体, 所述天线本体 为一体化结构, 通过至少两个安装固定组件及天线本体自身的一个连接点固 定连接在 PCB基板上。 所述天线本体包括一辐射组件, 一短路组件, 一传输 组件, 以及一接地组件。 所述天线本体自身的一个连接点是传输组件与 PCB 点 接地组件为一与 PCB基板平行的长方形金属片,短路组件连接于接地组 件的宽边的一侧, 且垂直于接地组件, 并沿第一方向延伸; 短路组件的另一端连接辐射组件, 且辐射组件垂直于短路组件, 平行于 接地组件, 接地组件和辐射组件在短路组件的同一侧; 以及 传输组件连接于辐射组件上, 且与辐射组件垂直, 与短路组件位于同一 平面, 传输组件的另一端焊接安装在 PCB基板上。 所述接地组件的窄边的两侧及另一侧宽边至少连接两个安装固定组件, 安装固定组件垂直于接地组件, 且反向于辐射组件方向延伸, 焊接安装在 PCB基板上。 安装固定组件外侧或内侧有一个防滑落组件, 防滑落组件形式包括但不 限于倒钩、 以及三角锥等, 防滑落组件的作用是防止天线安装在 PCB基板后 脱落, 方便天线的波峰焊接, 不需人工焊接。 两个安装固定组件与传输组件 构成三角, 防止天线晃动。 天线本体中的接地组件的面积略大于辐射组件的 面积, 作为辐射组件的参考地平面, 减小天线对 PCB基板的依赖。 上述所述天线本体, 可以放置在 PCB基板的外侧边缘的任何位置。 下面结合附图具体说明上述天线及天线装置的详细结构。 如图 3所示, 给出了本发明实施例的一种天线装置的立体结构示意图, 所述天线装置包括: 一 PCB基板 1 , 以及一天线本体 10, 所述天线本体 10 固定连接在 PCB基板上。 所述天线本体 10包括一辐射组件 11 , 一短路组件 12, 一传输组件 13 , —接地组件 14。 如图 4所示, 进一步给出了天线本体 10的放大结构示意图。 在图 4中, 辐射组件 11连接于短路组件 12的一端, 垂直于短路组件, 并沿第一方 向延伸; 传输组件 13连接于辐射组件 11上, 且与辐射组件 11垂直,传输组 件 13的另一端安装在 PCB基板 1上; 短路组件 12的另一端连接接地组件 14,且接地组件 14垂直于短路组件 12, 平行于辐射组件 11 ; 件 14和辐射组件 11在短路组件 12的同一侧, 在接地组件 14延 伸的方向 (即长边的两侧) 的两侧各有一个安装固定组件 15; 安装固定组件 15垂直于接地组件 14, 且反向于辐射组件方向延伸 (即: 辐射组件在接地组件 14的上方而安装固定组件 15在接地组件 14的下方) , 安装固定组件插入并焊接在 PCB基板 1上。 安装固定组件 15外侧 (也可以配置在内侧)有一个防滑落组件 16 , 防 滑落组件形式包括但不限于倒钩、 以及三角锥等凸出部件, 防滑落组件 16 的作用是防止天线本体 10安装在 PCB基板 1后发生脱落, 方便天线的波峰 焊接, 不需人工焊接。 接地组件 14的面积略大于辐射组件 11的面积, 作为辐射组件的参考地 平面。 所述 PCB基板 1 , 由基材和铜箔组成, 铜箔附在基材的表面。 其中, 基 材的材料包括但不限于 FR4 , Rogers及其他 PCB板材材料;铜箔的材料包括 但不限于铜、金、银或者合金等良导体。 所述天线本体 10的材料包括但不限 于铜、 马口铁及其合金等。 如图 4所示,本实施例还给出了天线本体 10的各个组成部件的尺寸信息。 天线辐射组件 11及其他组件的厚度 T1约为 0.15-0.35毫米, 辐射组件 11的 长度 L1约为 29-33毫米, 宽度 W1约为 6-8毫米, 辐射组件 11到接地组件 14距离 HI约为 5-7毫米, 传输组件 13到短路组件 12的距离为 1-4毫米。 接地组件 14的长度和宽度略大于辐射组件 11的长度和宽度, 传输组件
13长度略大于短路组件 12长度与 PCB基板 1厚度; 安装固定组件 15的高 度略大于 PCB基板 1的厚度。 本发明申请还进行了基于图 3及图 4所示天线结构的关于驻波比的测试。 测试结果中, 当天线工作在频率约为 2.44GHz时, 驻波比约为 1.09 , 若以驻 波比等于 2 为基准, 频率范围约为 2.38GHz-2.52GHz , 满足 WLAN 2.4GHz-2.4835GHz的要求。 测试表明, 图 3及图 4所示天线结构的天线频宽 特性及驻波要求相当优良。 本发明申请还进行了基于图 3及图 4所示天线结构的关于辐射特性的测 中,
当天线工作在频率约为 2.412GHz时,天线增益约为 2dB,效率为 78.06%; 当天线工作在频率约为 2.452GHz 时, 天线增益约为 2.55dB , 效率为 81.28%; 以及 当天线工作在频率约为 2.472GHz 时, 天线增益约为 2.59dB , 效率为
81.77%。 测试结果表明,图 3及图 4所示天线结构的在 WLAN频段内呈现出相当 优良的辐射场型, 足以满足使用者的要求。 本发明提供的新颖的天线及天线装置为一体化设计, 天线本体的所有结 构组件均连为一体, 生产简单, 只需制作生产模具, 制作精度高; 不需手工 焊接, 易于贴片,有很高的一致性,确保性能的一致性;对 PCB基板要求低, 天线本体可以放置在 PCB基板的四周, 对 PCB基板没有特殊要求; 制作成 本低; 尺寸小, 轮廓低, 驻波比低, 增益大, 效率高。 基于图 3和图 4所示的天线装置, 本实施例还可提供一种应用天线装置 的无线终端, 无线终端的天线装置包括: 一 PCB基板 1 , 以及一天线本体 10, 所述天线本体 10为一体化结构, 通过至少两个安装固定组件 15 及天线本体自身的一个连接点固定连接在 PCB基板 1上。 所述天线本体 10包括一辐射组件 11 , 一短路组件 12, —传输组件 13 , 一接地组件 14, 其中: 所述短路组件 12的两端垂直连接于彼此平行的辐射组件 11和接地组件 14之间, 辐射组件 11和接地组件 14位于短路组件 12的同一侧; 所述传输组件 13的一端与辐射组件 11垂直连接,且与短路组件 12位于 同一平面, 传输组件 13的另一端焊接安装在 PCB基板 1上; 所述至少两个安装固定组件 15位于接地组件 14的窄边两侧或宽边侧, 所述至少两个安装固定组件 15以插接和 /或焊接方式连接在 PCB基板 1上。 地组件 14的面积略大于辐射组件 11的面积。 所述安装固定组件 15的外侧或内侧具有防滑落组件 16。 所述接地组件 14是长方形金属片; 所 述接地组件 14的长度大于辐射组件 11的长度,其宽度大于辐射组件 11的宽 度。
以上所述仅为本发明的实施例而已, 并不用于限制本发明, 对于本领域 的技术人员来说, 本发明可以有各种更改和变化。 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权利要求 范围之内。
工业实用性 本发明的天线、 天线装置及无线终端, 可以使天线结构一体化, 减小天 线的尺寸以及占用空间, 有利于天线的批量生产, 并保证天线电性能的一致 性, 使得应用天线或天线装置的无线终端获得更好的无线收发效果。 应用本 发明, 可以利用天线上的两个安装固定组件以及传输组件将天线本体固定在 PCB基板上, 有效加强固定效果; 进一步地, 本发明的天线装置还可以用机 器贴片, 不用人工焊接, 提高产品的一致性, 大幅提高生产效率, 降低人工 成本, 有利于大量应用到 WLAN产品上。

Claims

权 利 要 求 书
1、 一种天线装置, 所述天线装置包括: 一 PCB基板(1 ) , 以及一天线 本体(10) , 所述天线本体(10)为一体化结构, 通过至少两个安装固定组 件(15)及天线本体自身的一个连接点固定连接在 PCB基板(1 )上。
2、 如权利要求 1所述的天线装置, 其中, 所述天线本体(10) 包括一辐射组件 (11 ) , 一短路组件(12) , —传 输组件(13) , 以及一接地组件(14) , 其中: 所述短路组件(12) 的两端垂直连接于彼此平行的辐射组件(11 )和接 地组件( 14 )之间, 辐射组件 ( 11 )和接地组件 ( 14 )位于短路组件 ( 12 ) 的同一侧; 所述传输组件(13) 的一端与辐射组件 (11 )垂直连接, 且与短路组件 (12)位于同一平面, 传输组件(13) 的另一端焊接安装在 PCB基板(1 ) 上;
所述至少两个安装固定组件(15)位于接地组件 (14) 的窄边两侧或宽 边侧, 所述至少两个安装固定组件 (15) 以插接和 /或焊接方式连接在 PCB 基板(1 )上。
3、 如权利要求 1或 2所述的天线装置, 其中, 所述安装固定组件(15) 的外侧或内侧具有防滑落组件 (16) 。
4、 如权利要求 3所述的天线装置, 其中, 所述防滑落组件的形式包括倒钩或三角锥。
5、 如权利要求 2所述的天线装置, 其中, 所述接地组件( 14 )是长方形金属片。
6、 如权利要求 5所述的天线装置, 其中, 地组件(14) 的长度大于辐射组件(11 ) 的长度, 所述接地组件 ( 14) 的宽度大于辐射组件(11 ) 的宽度。
7、 如权利要求 1或 2所述的天线装置, 其中, 所述 PCB基板包括基材和铜箔, 铜箔附在基材的表面; 基材的材料包括 FR4或 Rogers; 铜箔的材料包括铜、 金、 银或者合金导体; 所述天线本体(10) 的材料包括铜、 以及马口铁及铜或铁的合金。
8、 一种天线, 所述天线包括: 一辐射组件(11 ) , 一短路组件 (12) , 一传输组件(13 ) , 以及一接地组件 (14) , 其中: 所述短路组件( 12 ) 的两端垂直连接于彼此平行的辐射组件( 11 )和接 地组件( 14 )之间, 辐射组件 ( 11 )和接地组件 ( 14 )位于短路组件 ( 12 ) 的同一侧; 所述传输组件(13) 的一端与辐射组件 (11 )垂直连接, 且与短路组件 ( 12 )位于同一平面,传输组件( 13 )的另一端用于焊接安装在 PCB基板 ( 1 ) 上; 接地组件( 14 )的窄边两侧或宽边侧包括用于插接或焊接至 PCB基板( 1 ) 上的至少两个安装固定组件(15) 。
9、 如权利要求 8所述的天线, 其中, 所述安装固定组件(15) 的外侧或内侧具有防滑落组件 (16) 。
10、 如权利要求 9所述的天线, 其中, 所述防滑落组件的形式包括倒钩或三角锥。
11、 一种无线终端, 所述无线终端包括天线装置, 该天线装置包括: 一 PCB基板( 1 ) , 以及一天线本体( 10 ) , 所述天线本体( 10 )为一 通过至少两个安装固定组件 (15)及天线本体自身的一个连接点 固定连接在 PCB基板( 1 )上。
12、 如权利要求 11所述的无线终端, 其中, 所述天线本体(10) 包括一辐射组件 (11 ) , 一短路组件(12) , —传 输组件(13) , 以及一接地组件(14) , 其中: 所述短路组件(12) 的两端垂直连接于彼此平行的辐射组件(11 )和接 地组件( 14 )之间, 辐射组件 ( 11 )和接地组件 ( 14 )位于短路组件 ( 12 ) 的同一侧; 所述传输组件(13) 的一端与辐射组件 (11 )垂直连接, 且与短路组件 (12)位于同一平面, 传输组件(13) 的另一端焊接安装在 PCB基板(1 ) 上;
所述至少两个安装固定组件(15)位于接地组件 (14) 的窄边两侧或宽 边侧, 所述至少两个安装固定组件 (15) 以插接和 /或焊接方式连接在 PCB 基板(1 )上。
13、 如权利要求 11或 12所述的无线终端, 其中, 所述安装固定组件(15) 的外侧或内侧具有防滑落组件 (16) 。
14、 如权利要求 12所述的无线终端, 其中, 所述接地组件( 14 )是长方形金属片; 所述接地组件( 14 ) 的长度大于 辐射组件 ( 11 ) 的长度, 所述接地组件 ( 14 ) 的宽度大于辐射组件( 11 ) 的 宽度。
PCT/CN2011/074695 2011-01-25 2011-05-26 一种天线、天线装置及无线终端 WO2012100475A1 (zh)

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US7362277B2 (en) * 2005-11-14 2008-04-22 Hon Hai Precision Ind. Co., Ltd. Multi-band antenna

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