WO2020134454A1 - 全向天线及电子设备 - Google Patents

全向天线及电子设备 Download PDF

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Publication number
WO2020134454A1
WO2020134454A1 PCT/CN2019/113308 CN2019113308W WO2020134454A1 WO 2020134454 A1 WO2020134454 A1 WO 2020134454A1 CN 2019113308 W CN2019113308 W CN 2019113308W WO 2020134454 A1 WO2020134454 A1 WO 2020134454A1
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Prior art keywords
metal sheet
omnidirectional antenna
rectangular portion
present
dielectric substrate
Prior art date
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Ceased
Application number
PCT/CN2019/113308
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English (en)
French (fr)
Inventor
沈亚川
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.)
Aac Microtech Suzhou Co Ltd
AAC Technologies Holdings Shenzhen Co Ltd
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Aac Microtech Suzhou Co Ltd
AAC Acoustic Technologies Shenzhen Co Ltd
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Publication of WO2020134454A1 publication Critical patent/WO2020134454A1/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
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2291—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
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • 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
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/378—Combination of fed elements with parasitic elements
    • 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
    • H01Q9/40—Element having extended radiating surface

Definitions

  • the utility model relates to the technical field of communication, in particular to an omnidirectional antenna and electronic equipment.
  • An omnidirectional antenna refers to a type of antenna that can achieve 360° uniform radiation in a horizontal plane. Such antennas are widely used as base station antennas in mobile communications. For example, in suburbs and rural areas where the density of mobile users is low, omnidirectional antennas can be used to achieve a wide range of coverage. In addition, in the field of security and military, omnidirectional antennas are also widely used for signal detection and interference.
  • the omnidirectional antenna of the related art generally includes a narrowed copper tube and a rectangular right-angle wiring provided in the narrowed copper tube.
  • This type of antenna mainly has low spiral efficiency, insufficient structural strength of the narrowed copper tube, and high cost. Disadvantages, and the rectangular right-angle routing scheme is generally complicated and requires high processing accuracy and speed.
  • the purpose of the present invention is to overcome the above technical problems, to provide an omnidirectional antenna and electronic equipment with a regular structure, easy to process, and a larger bandwidth.
  • the present invention provides an omnidirectional antenna, including a dielectric substrate and a first metal sheet and a second metal sheet printed on the surface of the dielectric substrate, wherein the first metal sheet is rectangular,
  • the second metal sheet has a long shape with one end wide and one narrow end, the first metal sheet and the second metal sheet are arranged coaxially and spaced apart, and the wide end of the second metal sheet is close to the first One metal piece set.
  • the second metal sheet includes a first rectangular portion and a second rectangular portion extending from one end of the first rectangular portion in a direction away from the first metal sheet, the first rectangular portion and all The second rectangular portion is arranged coaxially, and the width of the first rectangular portion is the same as the width of the first metal sheet.
  • the width of the first rectangular portion is greater than the width of the second rectangular portion, the first rectangular portion Is the same as the length of the second rectangular portion.
  • the length of the first metal sheet is the same as the length of the second metal sheet.
  • the working frequency band of the omnidirectional antenna is 2.4-2.5 GHz and 5.15-5.85 GHz.
  • the omnidirectional antenna further includes an insulating housing, and the dielectric substrate is provided in the insulating housing.
  • the present invention also provides an electronic device, which includes the above-mentioned omnidirectional antenna.
  • the omnidirectional antenna and electronic equipment provided by the present invention have the following beneficial effects: [0014] 1. Small size, regular structure, continuous, easy to process;
  • FIG. 1 is a schematic perspective exploded view of a preferred embodiment of an omnidirectional antenna provided by the present invention
  • FIG. 2 is a reflection coefficient diagram of an omnidirectional antenna provided by the utility model
  • FIG. 3 is an antenna efficiency diagram of an omnidirectional antenna provided by the utility model
  • FIG. 4 is a directional diagram of the omnidirectional antenna provided by the utility model at 2.45 GHz;
  • FIG. 5 is a directional diagram of the omnidirectional antenna provided by the utility model at 5.5 GHz.
  • an embodiment of the present invention provides an omnidirectional antenna 100, which can be applied to electronic devices such as routers and switches.
  • the omnidirectional antenna 100 includes an insulating housing 1, a dielectric substrate 2 disposed in the insulating housing 1, and a first metal sheet 3 and a second metal sheet 4 printed on the surface of the dielectric substrate 2.
  • the omnidirectional antenna 100 can be fixedly connected to the electronic device through the insulating housing 1.
  • the dielectric substrate 2 has a rectangular shape.
  • the shape of the dielectric substrate 1 is not limited to this, so as to adapt to various types of insulating housings with different shapes.
  • the first metal sheet 3 has a rectangular shape
  • the second metal sheet 4 has a long shape with one end wide and one end narrow.
  • the first metal sheet 3 and the second metal sheet 4 are arranged at a distance from each other on the same axis, and the wide end of the second metal sheet 4 is disposed near the first metal sheet 3.
  • Printing the first metal sheet 3 and the second metal sheet 4 on the same surface of the dielectric substrate 2 does not occupy additional space, making the omnidirectional antenna smaller in size and more compact in structure.
  • the first metal sheet 3 and the second metal sheet 4 have a large area and a regular shape, and have low requirements for processing accuracy, and are easy to process.
  • the second metal sheet 4 includes a first rectangular portion 41 and a second rectangular portion 42 extending from one end of the first rectangular portion 41 in a direction away from the first metal sheet 3, the first rectangular portion 41 is disposed coaxially with the second rectangular portion 42, and the width of the first rectangular portion 41 is the same as the width of the first metal sheet 3.
  • the width of the first rectangular portion 41 is greater than the width of the second rectangular portion 42, and the length of the first rectangular portion 41 is the same as the length of the second rectangular portion 42.
  • the length of the first metal sheet 3 is the same as the length of the second metal sheet 4.
  • the distance between the first metal sheet 3 and the second metal sheet 4 is not specifically limited, the shape and the second shape of the first metal sheet 3 and the second metal sheet 4 can be adjusted appropriately The distance between the two is to meet the resonance requirements.
  • the working frequency bands of the omnidirectional antenna are 2.4-2.5 GHz and 5.15-5.85 GHz.
  • the omnidirectional antenna provided by the present invention has a wide working bandwidth, the reflection coefficient S11 is subject to -10dB, 2.45GHz is the center point, the bandwidth can reach 1GHz; 5.5GHz is the center, the bandwidth can be Up to 2.5G Hz, combined with FIG. 3 , it can be seen that, in the above frequency band, the antenna efficiency of the omnidirectional antenna is generally between -1. ldB and -3dB, which can meet actual needs.
  • FIG. 4 shows the directional pattern of the omnidirectional antenna provided by the present invention at 2.45 GHz. It can be clearly seen from the figure that the radiation direction is apple-shaped, which can cover 360 degrees around, and the gain can be achieved 2.17d B.
  • FIG. 5 shows the directional pattern of the omnidirectional antenna provided by the present invention at 5.5 GHz. It can be clearly seen from the figure that the radiation direction is apple-shaped, can cover 360 degrees around, and the gain can reach 3.17d B.
  • the omnidirectional antenna and electronic equipment provided by the present invention have the following beneficial effects: [0036] 1. Small size, regular structure, continuous, easy to process;

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

Abstract

本实用新型提供了一种全向天线及电子设备。所述全向天线包括介质基板以及印刷在所述介质基板表面的第一金属片和第二金属片，其中所述第一金属片呈矩形，所述第二金属片呈一端宽一端窄的长条形，所述第一金属片与所述第二金属片共轴线正对间隔设置，且所述第二金属片的宽端靠近所述第一金属片设置。与相关技术相比，本实用新型提供的全向天线及电子设备具有如下有益效果：体积小、结构规整、连续，易于加工；具有较大带宽，能够支持2.4-2.5GHz和5.15-5.85GHz频段；对加工精度要求低，易适应于多种不同形状的绝缘外壳。

Description

全向天线及电子设备
技术领域
[0001] 本实用新型涉及通讯技术领域， 尤其涉及一种全向天线及电子设备。
背景技术
[0002] 全向天线是指能在水平面实现 360°均匀辐射的一类天线。 此类天线被广泛用于 移动通信中的基站天线， 例如， 在移动用户密度较低的市郊、 农村地区， 采用 全向天线可以实现大范围的覆盖。 此外， 在安防和军用领域， 全向天线也被广 泛用于对信号的侦测和干扰。
[0003] 相关技术的全向天线通常包括缩口铜管和设于所述缩口铜管内的矩形直角走线 ， 该类天线主要存在螺旋效率低、 缩口铜管结构强度不足、 成本高等缺点， 而 且矩形直角走线方案走线普遍复杂， 对加工精度和速度要求高。
[0004] 因此， 实有必要提供一种改进的全向天线以解决上述问题。
发明概述
技术问题
[0005] 本实用新型的目的是克服上述技术问题， 提供一种结构规整、 易于加工、 且具 有较大带宽的全向天线及电子设备。
问题的解决方案
技术解决方案
[0006] 为了实现上述目的， 本实用新型提供一种全向天线， 包括介质基板以及印刷在 所述介质基板表面的第一金属片和第二金属片， 其中所述第一金属片呈矩形， 所述第二金属片呈一端宽一端窄的长条形， 所述第一金属片与所述第二金属片 共轴线正对间隔设置， 且所述第二金属片的宽端靠近所述第一金属片设置。
[0007] 优选的， 所述第二金属片包括第一矩形部和自所述第一矩形部一端朝远离所述 第一金属片方向延伸的第二矩形部， 所述第一矩形部与所述第二矩形部共轴线 设置， 所述第一矩形部的宽度与所述第一金属片的宽度相同。
[0008] 优选的， 所述第一矩形部的宽度大于所述第二矩形部的宽度， 所述第一矩形部 的长度与所述第二矩形部的长度相同。
[0009] 优选的， 所述第一金属片的长度与所述第二金属片的长度相同。
[0010] 优选的， 所述全向天线的工作频段为 2.4-2.5GHz和 5.15-5.85GHz。
[0011] 优选的， 所述全向天线还包括绝缘外壳， 所述介质基板设于所述绝缘外壳内。
[0012] 本实用新型还提供一种电子设备， 其包括上述的全向天线。
发明的有益效果
有益效果
[0013] 与相关技术相比， 本实用新型提供的全向天线及电子设备具有如下有益效果： [0014] 1、 体积小、 结构规整、 连续， 易于加工；
[0015] 2、 具有较大带宽， 育 g够支持 2.4-2.5GHZ和 5.15-5.85GHZ频段；
[0016] 3、 对加工精度要求低， 易适应于多种不同形状的绝缘外壳。
对附图的简要说明
附图说明
[0017] 为了更清楚地说明本实用新型实施例中的技术方案， 下面将对实施例描述中所 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实用 新型的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前 提下， 还可以根据这些附图获得其它的附图， 其中：
[0018] 图 1为本实用新型提供的全向天线一较佳实施例的立体分解结构示意图；
[0019] 图 2为本实用新型提供的全向天线的反射系数图；
[0020] 图 3为本实用新型提供的全向天线的天线效率图；
[0021] 图 4为本实用新型提供的全向天线在 2.45GHz时的方向图；
[0022] 图 5为本实用新型提供的全向天线在 5.5GHz时的方向图。
发明实施例
具体实施方式
[0023] 下面将结合本实用新型实施例中的附图， 对本实用新型实施例中的技术方案进 行清楚、 完整地描述， 显然， 所描述的实施例仅是本实用新型的一部分实施例 ， 而不是全部的实施例。 基于本实用新型中的实施例， 本领域普通技术人员在 没有做出创造性劳动前提下所获得的所有其它实施例， 都属于本实用新型保护 的范围。
[0024] 如图 1所示， 本实用新型实施例提供了一种全向天线 100, 其可应用于路由器、 交换机等电子设备。 所述全向天线 100包括绝缘外壳 1、 设于所述绝缘外壳 1内的 介质基板 2、 以及印刷在所述介质基板 2表面的第一金属片 3和第二金属片 4。 所 述全向天线 100可以通过所述绝缘外壳 1固定连接到电子设备上。
[0025] 所述介质基板 2为矩形， 当然， 所述介质基板 1的形状不限于此， 以适应多种不 同形状的绝缘外壳。
[0026] 所述第一金属片 3呈矩形， 所述第二金属片 4呈一端宽一端窄的长条形。 所述第 一金属片 3与所述第二金属片 4共轴线正对间隔设置， 且所述第二金属片 4的宽端 靠近所述第一金属片 3设置。 将所述第一金属片 3和所述第二金属片 4印刷在所述 介质基板 2的同一表面上， 不会占用额外的空间， 使得全向天线的体积更小， 结 构更加紧凑。 而且所述第一金属片 3和所述第二金属片 4面积大且形状规则， 对 加工精度要求低， 易于加工。
[0027] 所述第二金属片 4包括第一矩形部 41和自所述第一矩形部 41一端朝远离所述第 一金属片 3方向延伸的第二矩形部 42, 所述第一矩形部 41与所述第二矩形部 42共 轴线设置， 所述第一矩形部 41的宽度与所述第一金属片 3的宽度相同。
[0028] 进一步地， 所述第一矩形部 41的宽度大于所述第二矩形部 42的宽度， 所述第一 矩形部 41的长度与所述第二矩形部 42的长度相同。
[0029] 更进一步地， 所述第一金属片 3的长度与所述第二金属片 4的长度相同。
[0030] 所述第一金属片 3与所述第二金属片 4之间的间距不做具体限定， 可以通过适当 调整所述第一金属片 3和所述第二金属片 4的形状和二者之间的间距， 以达到谐 振要求。
[0031] 所述全向天线的工作频段为 2.4-2.5GHz和 5.15-5.85GHz。
[0032] 请参阅图 2, 本实用新型提供的全向天线具有很宽的工作带宽， 反射系数 S11以 -10dB为准， 2.45GHz为中心点， 带宽可达 1GHz; 5.5GHz为中心， 带宽可达 2.5G Hz , 再结合图 3所示， 可见， 在上述频段中， 所述全向天线的天线效率大体在 -1. ldB到 -3dB之间， 可满足实际所需。 [0033] 请参阅图 4， 显示了本实用新型提供的全向天线在 2.45GHz时的方向图， 从图中 可以清楚的看出， 辐射方向呈苹果形， 能够 360度覆盖四周， 增益可以达到 2.17d B。
[0034] 请参阅图 5， 显示了本实用新型提供的全向天线在 5.5GHz时的方向图， 从图中 可以清楚的看出， 辐射方向呈苹果形， 能够 360度覆盖四周， 增益可以达到 3.17d B。
[0035] 与相关技术相比， 本实用新型提供的全向天线及电子设备具有如下有益效果： [0036] 1、 体积小、 结构规整、 连续， 易于加工；
[0037] 2、 具有较大带宽， 能够支持 2.4-2.5GHZ和 5.15-5.85GHZ频段；
[0038] 3、 对加工精度要求低， 易适应于多种不同形状的绝缘外壳。
[0039] 以上所述的仅是本实用新型的实施方式， 在此应当指出， 对于本领域的普通技 术人员来说， 在不脱离本实用新型创造构思的前提下， 还可以做出改进， 但这 些均属于本实用新型的保护范围。

Claims

权利要求书
[权利要求 1] 一种全向天线， 其特征在于， 包括介质基板以及印刷在所述介质基板 表面的第一金属片和第二金属片， 其中所述第一金属片呈矩形， 所述 第二金属片呈一端宽一端窄的长条形， 所述第一金属片与所述第二金 属片共轴线正对间隔设置， 且所述第二金属片的宽端靠近所述第一金 属片设置。
[权利要求 2] 根据权利要求 1所述的全向天线， 其特征在于， 所述第二金属片包括 第一矩形部和自所述第一矩形部一端朝远离所述第一金属片方向延伸 的第二矩形部， 所述第一矩形部与所述第二矩形部共轴线设置， 所述 第一矩形部的宽度与所述第一金属片的宽度相同。
[权利要求 3] 根据权利要求 2所述的全向天线， 其特征在于， 所述第一矩形部的宽 度大于所述第二矩形部的宽度， 所述第一矩形部的长度与所述第二矩 形部的长度相同。
[权利要求 4] 根据权利要求 1或 3所述的全向天线， 其特征在于， 所述第一金属片的 长度与所述第二金属片的长度相同。
[权利要求 5] 根据权利要求 1所述的全向天线， 其特征在于， 所述全向天线的工作 频段为 2.4-2.5GHz和 5.15-5.85GHz
[权利要求 6] 根据权利要求 1所述的全向天线， 其特征在于， 所述全向天线还包括 绝缘外壳， 所述介质基板设于所述绝缘外壳内。
[权利要求 7] 一种电子设备， 其包括权利要求 1至 6任一项所述的全向天线。
PCT/CN2019/113308 2018-12-28 2019-10-25 全向天线及电子设备 Ceased WO2020134454A1 (zh)

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CN209487708U (zh) * 2018-12-28 2019-10-11 瑞声光电科技（苏州）有限公司 全向天线及电子设备

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