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WO2018166193A1 - 吸顶天线 - Google Patents

吸顶天线 Download PDF

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Publication number
WO2018166193A1
WO2018166193A1 PCT/CN2017/105801 CN2017105801W WO2018166193A1 WO 2018166193 A1 WO2018166193 A1 WO 2018166193A1 CN 2017105801 W CN2017105801 W CN 2017105801W WO 2018166193 A1 WO2018166193 A1 WO 2018166193A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibrator
bottom plate
ceiling antenna
tail
antenna according
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/105801
Other languages
English (en)
French (fr)
Inventor
丁俊涛
宋兆颖
王杰翔
罗文凯
张陆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kunshan Hamilton Communication Technology Co Ltd
Original Assignee
Kunshan Hamilton Communication Technology Co Ltd
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 Kunshan Hamilton Communication Technology Co Ltd filed Critical Kunshan Hamilton Communication Technology Co Ltd
Priority to US16/493,709 priority Critical patent/US11411294B2/en
Publication of WO2018166193A1 publication Critical patent/WO2018166193A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/007—Details of, or arrangements associated with, antennas specially adapted for indoor communication
    • 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
    • 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
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
    • H01Q1/1221—Supports; Mounting means for fastening a rigid aerial element onto a wall
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
    • H01Q5/25—Ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
    • 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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • 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
    • H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations

Definitions

  • This embodiment relates to the field of antenna technologies, and for example, to a ceiling antenna.
  • 3G Third generation, The communication system bandwidth of the third generation mobile communication era can no longer meet the future communication requirements, and the system needs higher bandwidth. Accordingly, multiple antenna bandwidths also need to be widened.
  • WiFi Wireless-Fidelity, wireless protection
  • Coverage needs are becoming more and more popular. In order to save resources and reduce network installation difficulties, multiple operators share the network. In this way, the system needs a wider frequency band, and for future system expansion, network builders hope to cover WiFi. It is also covered in a network system, so operators urgently need an indoor coverage ceiling antenna.
  • the indoor coverage ceiling antenna in the related art has a frequency band of 698-2700 MHz, and the principle is basically the same. Limited by its principle, the size is relatively large.
  • the present embodiment provides a ceiling antenna to achieve simultaneous reduction in height and diameter of the ceiling antenna.
  • the embodiment provides a ceiling antenna, comprising: an upper cone, a lower cone, a support member, a support rod, a bottom plate, a spiral tail, and a feeder;
  • the support member and the bottom plate are both annular, and the support member and the bottom plate are connected by a support rod disposed on an outer circumference of the support member, the upper cone and the lower cone All of which are conical, the top portion of the upper cone is downwardly fixed to the support member, the top portion of the lower cone is upwardly fixed to the bottom plate, and the spiral tail is along the lower cone The lower edge is distributed outward;
  • the feed line passes through a hollow portion of the bottom plate to feed the upper cone and the lower cone.
  • a ceiling antenna comprising: a first vibrator, a second vibrator, a bottom plate, a spiral tail, and a feed line;
  • a second vibrator fixedly connected to the first vibrator
  • the second vibrator is fixed on the bottom plate
  • the spiral tail is disposed around an edge of the second vibrator, and the spiral fin is provided with a notch;
  • a feeder connected to the first vibrator and the second vibrator to feed the first vibrator and the second vibrator.
  • the notch extends through the spiral tail to divide the spiral tail into a plurality of spiral tail units.
  • the notch is curved such that the spiral tail unit is a blade extending outwardly around the second vibrator.
  • the notch is a slit that gradually becomes larger along a direction in which the spiral tail extends.
  • the spiral tail is provided with the first bent portion perpendicular to a preset surface of the bottom plate and the first surface that is in contact with the first bent portion and parallel to the preset surface of the bottom plate
  • the second bent portion, the predetermined surface of the bottom plate refers to a surface on the bottom plate on which the second vibrator is disposed.
  • the second vibrator is a cone provided with an opening facing the bottom plate.
  • the second vibrator is integrally provided with the spiral tail or is fixed together by a connecting member.
  • the notch extends through the spiral tail and a portion of the second vibrator.
  • the first vibrator is a cone whose opening faces away from the second vibrator, and the conical top of the first vibrator and the conical top of the second vibrator are disposed adjacent to each other.
  • the feed line extends through the bottom plate and one end of the feed line is fixedly connected to the first vibrator and the second vibrator.
  • the support member is annular and sleeved on the first vibrator, and the support member is connected to the bottom plate by the support rod distributed along the circumference.
  • a screw hole for fixing to the second vibrator is uniformly disposed on the bottom plate.
  • the inner side of the circumference of the support member is uniformly disposed with a limiting block disposed to be fixedly connected to the first vibrator.
  • the bottom plate is annular.
  • the ceiling antenna provided in this embodiment achieves simultaneous reduction in antenna height and diameter, thereby achieving miniaturization of the ceiling antenna.
  • FIG. 1 is a perspective view of a ceiling antenna provided by this embodiment
  • Figure 2 is a perspective view of the lower cone provided by the embodiment
  • Fig. 3 is a perspective view of the support member provided by the embodiment.
  • the indoor covered ceiling antenna in the related art is either small in diameter and high in height; or large in diameter and low in height; it is difficult to achieve simultaneous reduction in height and diameter.
  • the ceiling antenna includes: a first vibrator, such as a cone 1, a second vibrator, a cone 2, a bottom plate 4, and a feed line 5.
  • the ceiling antenna can be used for indoor signal coverage.
  • the upper cone 1 is made of an electrical conductor material and has a conical shape. Relative to the cone of the lower cone 2, the cone height of the upper cone is small, and the radius of the circular shape of the bottom surface is also small. In the assembled state, the top end of the upper cone 1 is fixed downward on the support member 3.
  • the lower cone 2 is also composed of an electrical conductor material, and the outer shape of the lower cone 2 is also substantially conical.
  • FIG. 2 shows a perspective view of the lower cone member 2. Referring to Fig. 2, the height of the lower cone 2 and the radius of the bottom surface are larger than the upper cone 1.
  • a set of helical tails 7 extending outwardly are arranged on the outer circumference of the lower cone 2.
  • the number of the spiral tails 7 to be laid may be four.
  • the above four spiral tails 7 are evenly distributed along the outer circumference of the lower cone 2.
  • the outer circumference refers to the outer side of the circumference.
  • the spiral tail unit is in the shape of a fan extending outward around the second vibrator.
  • a slit 21 is provided between the different spiral tails 7, and the gap of the slit 21 is gradually enlarged from the tip of the lower cone 2. That is, the slit has an involute shape.
  • the width of the slit 21 is such that the support rod passes through the center to secure the support member 3 to the bottom plate 4.
  • a tail fold 22 is provided at the tail of each tail.
  • the function of the tail fold 22 is to use a multi-layer non-coplanar structure, thereby increasing the electrical length of the antenna without increasing the radius of the lower cone member, thereby improving space utilization.
  • the arrangement of the tail folds 22 is of great importance for the miniaturization of the antenna.
  • the bandwidth of the ceiling antenna can be greatly increased, which is advantageous for improving the performance of the ceiling antenna.
  • the support member 3 is further included, and the support member 3 may be made of a non-conductive hard material and has an annular shape.
  • the role of the support 3 is to support the upper cone 1.
  • the support member 3 is fixed to the bottom plate 4 by a plurality of support rods 6 attached to the bottom surface.
  • the number of the support rods 6 may be plural, for example four, and their connection position with the support member 3 may be uniformly distributed on the support member 3 in the circumferential direction of the ring of the support member 3.
  • the bottom plate 4 can also be made of a non-conductive hard material.
  • the shape of the bottom plate 4 is also a ring.
  • the main function of the bottom plate 4 is to provide support for the lower cone 2.
  • the bottom plate 4 is fixed to the lower cone 2 by a plurality of screws disposed on the bottom plate 4.
  • the non-conductive hard material may be ABS (Acrylonitrile Butadiene Styrene plastic) or FR4 composite material.
  • a plurality of limiting blocks 31 are protruded from the inner side of the circumference of the support member 3. Through these stoppers 31, the support rod is fixed to the upper cone 1.
  • Feeder 5 is used to feed upper cone 1 and lower cone 2.
  • the feed line 5 is fed through the middle hole of the bottom plate 5 for the upper cone 1 and the lower cone 2.
  • the ceiling antenna provided in this embodiment has a wide coverage bandwidth, and can cover an indoor coverage ceiling antenna covering 700-6000 MHz (megahertz) and 9 times frequency, and can cover the mobile communication frequency band and wimax (Worldwide Interoperability for Microwave Access, Global microwave interconnection (Access), WiFi, GPS (Global Positioning System), BDS (BeiDou Navigation Satellite System, Beidou satellite navigation system) and other frequency bands.
  • Wimax Worldwide Interoperability for Microwave Access, Global microwave interconnection (Access), WiFi, GPS (Global Positioning System), BDS (BeiDou Navigation Satellite System, Beidou satellite navigation system) and other frequency bands.
  • the ceiling antenna provided by the embodiment supports the upper cone and the lower cone respectively through the support members fixed on the bottom plate and the bottom plate, and the spiral tail fins are arranged on the bottom of the lower cone, thereby realizing the simultaneous reduction of the antenna height and the diameter, thereby realizing The miniaturization of the ceiling antenna.

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  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

一种吸顶天线，包括：第一振子、第二振子、底板、螺旋尾翼以及馈线；第一振子；与所述第一振子固定连接的第二振子；底板，所述第二振子固定在所述底板上；螺旋尾翼，所述螺旋尾翼围绕所述第二振子的边沿设置，所述螺旋尾翼上设置有缺口；以及馈线，所述馈线与所述第一振子和第二振子连接，为所述第一振子和第二振子馈电。

Description

吸顶天线 技术领域
本实施例涉及天线技术领域，例如涉及一种吸顶天线。
背景技术
随着4G(the 4th Generation mobile communication technology，第四代移动通信技术)，5G(5th-Generation，第五代移动通信技术)通讯时代的来临，数据请求越来越大，3G(third generation，第三代移动通讯)时代的通讯系统带宽已经不能满足未来通信需求，系统需要更高的带宽，随之，多种天线带宽也需要布拓宽，同时，多种场合的WiFi(Wireless-Fidelity，无线保真)覆盖需求也越越普及，为了节省资源，降低网络安装困难，多个运营商共用网络，这样，系统就需要更宽的频段，同时为以后的系统扩展，网络建设者希望将WiFi的覆盖也涵盖在一套网络系统里，因此，运营商急需一种室内覆盖吸顶天线。
相关技术中的室内覆盖吸顶天线，均频带698-2700MHz，原理基本一致。受限于它的原理，尺寸均比较大。
发明内容
针对上述技术问题，本实施例提供了一种吸顶天线，以实现吸顶天线的高度和直径的同时降低。
本实施例提供了一种吸顶天线，包括：上锥、下锥、支撑件、支撑杆、底板、螺旋尾翼以及馈线；
其中，所述支撑件及所述底板均为圆环状，并且所述支撑件及所述底板之间通过在所述支撑件外周上布设的支撑杆连接，所述上锥及所述下锥均为圆锥状，所述上锥的顶尖部向下，与所述支撑件固接，所述下锥的顶尖部向上，固接至所述底板上，所述螺旋尾翼沿所述下锥的下沿向外分布；
所述馈线穿过所述底板的中空部，为所述上锥及所述下锥馈电。
一种吸顶天线，包括：第一振子、第二振子、底板、螺旋尾翼以及馈线；
第一振子；
与所述第一振子固定连接的第二振子；
底板，所述第二振子固定在所述底板上；
螺旋尾翼，所述螺旋尾翼围绕所述第二振子的边沿设置，所述螺旋尾翼上设置有缺口；以及
馈线，所述馈线与所述第一振子和第二振子连接，为所述第一振子和第二振子馈电。
可选的，所述缺口贯穿所述螺旋尾翼，将所述螺旋尾翼分割成多个螺旋尾翼单元。
可选的，所述缺口呈弧形，使得所述螺旋尾翼单元为围绕所述第二振子向外延伸的扇叶。
可选的，所述缺口为沿所述螺旋尾翼延伸方向逐渐变大的缝隙。
可选的，所述螺旋尾翼设置有垂直于所述底板的预设表面的所述第一弯折部以及与所述第一弯折部相接并平行于所述底板的预设表面的第二弯折部，所述底板的预设表面是指所述底板上设置所述第二振子的表面。
可选的，所述第二振子为开口朝向所述底板设置的圆锥。
可选的，所述第二振子与所述螺旋尾翼为一体设置的或者是通过连接件固定在一起。
可选的，所述缺口贯穿所述螺旋尾翼以及第二振子的一部分。
可选的，所述第一振子为一开口背离所述第二振子的圆锥，所述第一振子的圆锥顶部和所述第二振子的圆锥顶部相邻设置。
可选的，所述馈线贯穿所述底板并且所述馈线的一端与所述第一振子和所述第二振子固定连接。
可选的，还包括支撑件和支撑杆，所述支撑件为圆环状并套设所述第一振子上，所述支撑件通过沿周向分布的所述支撑杆与所述底板连接。
可选的，所述底板上均匀设置有用于与所述第二振子固接的螺孔。
可选的，所述支撑件的圆周内侧均匀设置有设置为与所述第一振子固定连接的限位块。
可选的，所述底板为圆环状。
本实施例提供的吸顶天线实现了天线高度和直径的同时降低，从而实现了吸顶天线的小型化。
附图概述
图1是本实施例提供的吸顶天线的立体图；
图2是本实施例提供的下锥的立体图；
图3是本实施例提供的支撑件的立体图。
具体实施方式
下面结合附图和实施例对本公开作详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本公开，而非对本公开的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本公开相关的部分而非全部结构。
相关技术中的室内覆盖吸顶天线，要么直径小，高度高；要么直径大，高度低；很难实现高度和直径同时降低。
本实施例提供了一种吸顶天线。吸顶天线包括：第一振子，如上锥1，第二振子，如下锥2，底板4以及馈线5。该吸顶天线可以是用于室内信号覆盖。
上锥1由电导体材料构成，外形为圆锥状。相对于下锥2的圆锥体来说，上锥的圆锥高度较小，底面圆形的半径也较小。在组装状态下，上锥1的顶尖向下被固接在支撑件3上。
下锥2同样由电导体材料构成，下锥2的外形也大致为圆锥状。图2示出了下锥部件2的立体图。参见图2，下锥2的高度及底面圆形的半径均大于上锥1。另外，可选的，在下锥2的外周上布设着一组向外延展的螺旋尾翼7。在本实施例中，布设的螺旋尾翼7的数量可以是四个。并且，可选的，上述四个螺旋尾翼7沿下锥2的外周均布。所述外周是指圆周的外侧。可选的，所述螺旋尾翼单元为呈围绕所述第二振子向外延伸的扇叶状。
不同的螺旋尾翼7之间设有缝隙21，而且缝隙21的间隙由下锥2的顶尖向下呈逐渐变大的形状。也即，缝隙呈渐开型的形状。缝隙21的宽度要能够使得支撑杆从中间穿过，以便将支撑件3与底板4固接。相邻螺旋尾翼7和下锥2之间通过设置所述缝隙21实现能够末端电容和电感加载原理，从而在不增加尺寸的情况下能很好的拓展带宽。
可选的，每个尾翼的尾部设有尾部折起22。设置尾部折起22的作用在于采用多层非共面结构，从而增加天线的电长度而不增大下锥部件的半径，提高空间利用率。尾部折起22的设置对于天线的小型化有十分重要的意义。
由于在下锥的外沿增设有螺旋尾翼7，能够大大增加吸顶天线的带宽，对于提高吸顶天线的性能十分有利。
可选的，还包括支撑件3，所述支撑件3可以是由非导电的硬质材料制成，外形上呈圆环状。支撑件3的作用在于支撑上锥1。支撑件3通过连接在底面上的多个支撑杆6与底板4固接。支撑杆6的数量可以是多个，例如四个，而且它们与支撑件3之间的连接位置可以是沿支撑件3圆环的周向均布在支撑件3上。
与支撑件3相同，底板4也可以是由非导电的硬质材料制成。底板4的外形也是圆环。底板4的主要作用在于对下锥2提供支撑。可选的，底板4通过设置在底板4上的多个螺钉与下锥2固接。
可选的，上述非导电的硬质材料可以是ABS(Acrylonitrile Butadiene Styrene plastic，丙烯腈-丁二烯-苯乙烯塑料)或者FR4复合材料。
可选的，在支撑件3的圆周内侧突出设置有多个限位块31。通过这些限位块31，支撑杆与所述上锥1固接。
馈线5用于对上锥1及下锥2馈电。在本实施例中，馈线5穿过底板5的中孔为上锥1及下锥2馈电。
本实施例提供的吸顶天线的覆盖带宽较宽，可以是覆盖了700-6000MHz(兆赫兹)，9倍频的室内覆盖吸顶天线，能覆盖移动通讯频段以及wimax(Worldwide Interoperability for Microwave Access，全球微波互联接入)、WiFi、GPS(Global Positioning System，全球定位系统)、BDS(BeiDou Navigation Satellite System，北斗卫星导航系统)等频段。
工业实用性
本实施例提供的吸顶天线，通过底板及底板上固接的支撑件分别支撑上锥及下锥，在下锥的底部均布有螺旋尾翼，实现了天线高度和直径的同时降低，从而实现了吸顶天线的小型化。

Claims (14)

  1. 一种吸顶天线，包括：第一振子、第二振子、底板、螺旋尾翼以及馈线；
    第一振子；
    与所述第一振子固定连接的第二振子；
    底板，所述第二振子固定在所述底板上；
    螺旋尾翼，所述螺旋尾翼围绕所述第二振子的边沿设置，所述螺旋尾翼上设置有缺口；以及
    馈线，所述馈线与所述第一振子和第二振子连接，为所述第一振子和第二振子馈电。
  2. 根据权利要求1所述的吸顶天线，其中，所述缺口贯穿所述螺旋尾翼，将所述螺旋尾翼分割成多个螺旋尾翼单元。
  3. 根据权利要求2所述的吸顶天线，其中，所述缺口呈弧形，使得所述螺旋尾翼单元为围绕所述第二振子向外延伸的扇叶。
  4. 根据权利要求3所述的吸顶天线，其中，所述缺口为沿所述螺旋尾翼延伸方向逐渐变大的缝隙。
  5. 根据权利要求4或3所述的吸顶天线，其中，所述螺旋尾翼设置有垂直于所述底板的预设表面的所述第一弯折部以及与所述第一弯折部相接并平行于所述底板的预设表面的第二弯折部，所述底板的预设表面是指所述底板上设置所述第二振子的表面。
  6. 根据权利要求5所述的吸顶天线，其中，所述第二振子为开口朝向所述底板设置的圆锥。
  7. 根据权利要求6所述的吸顶天线，其中，所述第二振子与所述螺旋尾翼为一体设置的或者是通过连接件固定在一起。
  8. 根据权利要求7所述的吸顶天线，其中，所述缺口贯穿所述螺旋尾翼以及第二振子的一部分。
  9. 根据权利要求1-8任一所述的吸顶天线，其中，所述第一振子为一开口背离所述第二振子的圆锥，所述第一振子的圆锥顶部和所述第二振子的圆锥顶部相邻设置。
  10. 根据权利要求9所述的吸顶天线，其中，所述馈线贯穿所述底板并且所述馈线的一端与所述第一振子和所述第二振子固定连接。
  11. 根据权利要求10所述的吸顶天线，还包括支撑件和支撑杆，所述支撑 件为圆环状并套设所述第一振子上，所述支撑件通过沿周向分布的所述支撑杆与所述底板连接。
  12. 根据权利要求11所述的吸顶天线，其中，所述底板上均匀设置有用于与所述第二振子固接的螺孔。
  13. 根据权利要求11或12所述的吸顶天线，其中，所述支撑件的圆周内侧均匀设置有设置为与所述第一振子固定连接的限位块。
  14. 根据权利要求11所述的吸顶天线，其中，所述底板为圆环状。
PCT/CN2017/105801 2017-03-14 2017-10-12 吸顶天线 Ceased WO2018166193A1 (zh)

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