WO2021109204A1 - 一种 5g 移动通信 aau 天线罩 - Google Patents

一种 5g 移动通信 aau 天线罩 Download PDF

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Publication number
WO2021109204A1
WO2021109204A1 PCT/CN2019/124978 CN2019124978W WO2021109204A1 WO 2021109204 A1 WO2021109204 A1 WO 2021109204A1 CN 2019124978 W CN2019124978 W CN 2019124978W WO 2021109204 A1 WO2021109204 A1 WO 2021109204A1
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glass fiber
fiber layer
layer
radome
coarse
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PCT/CN2019/124978
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English (en)
French (fr)
Inventor
宋键
张晖
赵铭
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广州市瀚云信息技术有限公司
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Publication of WO2021109204A1 publication Critical patent/WO2021109204A1/zh

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    • 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
    • H01Q1/422—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material
    • H01Q1/424—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material comprising a layer of expanded 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
    • H01Q1/422—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material

Definitions

  • the invention relates to the field of mobile communication technology, and more specifically, to a 5G mobile communication AAU radome.
  • the fifth-generation mobile communication technology is the latest generation of cellular mobile communication technology, which is also 4G (an extension after the system.
  • the performance goals of 5G are high data rate, reduced latency, energy saving, cost reduction, increased system capacity and large-scale device connection
  • the wireless access part of 4G base stations consisted of BBUs and RRUs.
  • RRUs were connected to antennas to cover mobile communication signals. Due to the diversity of outdoor base station RRUs and antennas, some sites need to be installed in commercial and residential buildings.
  • the radome products are generally used in these areas. The radome surrounds the equipment and the covering antenna. In addition to the appearance requirements, In terms of electrical performance, the impact on signal radiation power and pattern should be minimized.
  • the RRU and the antenna are integrated to form a multi-antenna AAU unit (Active Antenna Unit). Since the signal frequency band used by 5G is higher than that of 4G (4G uses 900MHz-2.7GHz, 5G uses the existing 4G spectrum, and it is mainly deployed in higher 3.5GHz, 4.9GHz and other frequency bands), so AAU The design of the radome using the previous 4G radome has been unable to meet the performance requirements of 5G communications, and a new radome material solution is needed to solve this problem.
  • the purpose of the present invention is to provide a 5G mobile communication AAU radome, which can specifically target 5G communication under more working frequency bands and working bandwidth conditions, maintaining better original equipment radiation field strength and coverage pattern, while maintaining relatively On the premise of good AAU coverage performance, it plays a role in the coordination and beauty of equipment installation and use with the surrounding environment, providing better site selection flexibility and reducing deployment difficulty for 5G base station construction.
  • a 5G mobile communication AAU radome The radome is divided into five layers from the outside to the inside, including a first thin glass fiber layer, a first thick glass fiber layer, a foam material layer, a second thick glass fiber layer, and a second thick glass fiber layer.
  • the thin glass fiber layer, the first thin glass fiber layer and the second thin glass fiber layer are both composed of glass fiber yarn and thermosetting resin, the first thick glass fiber layer and the second thick glass fiber layer are both made of glass fiber mat And thermosetting resin, the foamed material layer is composed of polyurethane foam, the thickness of the first thin glass fiber layer and the second thin glass fiber layer are both 0.2mm-0.4mm, the first thick glass fiber layer and The thickness of the second coarse glass fiber layer is 0.1mm-0.2mm, the thickness of the foamed material layer is 20mm-30mm, and the density of the foamed material layer is 60kg/m3-80 kg/m3.
  • the total ratio of the glass fiber yarn and the thermosetting resin in the first thin glass fiber layer and the second thin glass fiber layer is 50%:50%, and the first thick glass fiber layer and the second thick glass fiber layer
  • the total ratio of glass fiber mat to thermosetting resin in the layer is 45%:55%.
  • the middle of the foamed material layer has an open cell structure, the diameter of the open cell is 0.8mm-1.2mm, and the cell pitch is 80mm-120mm.
  • the present invention can make the transmission and reflection characteristics of specific electromagnetic waves achieve a better matching state, thereby maintaining the radiation performance of the original antenna, and can specifically target more work for 5G communication. Under the condition of frequency band and working bandwidth, maintain good original equipment radiation field strength and coverage pattern. Under the premise of maintaining good AAU coverage performance, it plays a role in coordination and beauty of equipment installation and use with the surrounding environment. It is 5G Base station construction provides better site selection flexibility and reduces deployment difficulty.
  • Fig. 1 is a structural diagram of the 5G mobile communication AAU radome of the present invention.
  • Fig. 2 is a structural diagram of the opening in the middle of the foamed material layer in the 5G mobile communication AAU radome of the present invention.
  • the present invention provides a 5G mobile communication AAU radome
  • the radome is divided into five layers from the outside to the inside, including a first thin glass fiber layer L1, a first thick glass fiber layer L2,
  • the foamed material layer L3, the second thick glass fiber layer L4 and the second thin glass fiber layer L5, the first thin glass fiber layer L1 and the second thin glass fiber layer L4 are composed of glass fiber yarn and thermosetting resin, which can be
  • the outer layer forming the radome plays the role of beautification, corrosion resistance, and wave transmission.
  • the first thick glass fiber layer L2 and the second thick glass fiber layer L5 are both composed of glass fiber mat and thermosetting resin, which can play the role of beautification, corrosion resistance, and wave transmission.
  • the foamed material layer is composed of polyurethane foam, and the thickness of the first thin glass fiber layer L1 and the second thin glass fiber layer L4 are both 0.2mm-0.4 mm, the thickness of the first coarse glass fiber layer L2 and the second coarse glass fiber layer L5 are both 0.1mm-0.2mm, the thickness of the foamed material layer L3 is 20mm-30mm, and the density of the foamed material layer L3 It is 60kg/m3-80 kg/m3.
  • the purpose of providing five layers in the present invention is to ensure the overall weather resistance, reliability and convenience of production and processing.
  • the thickness of the glass fiber yarn is relatively thin, and it is easy to control the resin content, but the fit is not good, and the glass fiber mat is easy to absorb the resin, but the resin content is not easy to control, and the thickness is not easy to control.
  • the combination of the first thin glass fiber layer L1, the first thick glass fiber layer L2, the second thick glass fiber layer L4, and the second thin glass fiber layer L5 is to meet better structural and electrical performance considerations.
  • the foamed material layer L3 is to fill the required spacing between the first thin glass fiber layer L1, the first thick glass fiber layer L2, the second thick glass fiber layer L4, and the second thin glass fiber layer L5 Requirements and material structural support requirements.
  • the arrangement of the foam material layer L3 in the middle On the one hand, it is used to stabilize the first thin glass fiber layer L1, the first thick glass fiber layer L2, the second thick glass fiber layer L4, and the second thin glass fiber layer L5 as a whole structure, its thickness requirements, and design frequency
  • the response is related and is set to ensure the passability of the 2.5g-6g frequency.
  • the total ratio of the glass fiber yarn and the thermosetting resin in the first thin glass fiber layer L1 and the second thin glass fiber layer L4 is 50%:50%, and the first thick glass fiber layer L2 and the second thick glass fiber layer L2
  • the total ratio of the glass fiber mat to the thermosetting resin in the fiber layer L5 is 45%:55%.
  • the setting of the total amount ratio in this embodiment is to ensure that the designed electrical performance is achieved, because both resin and glass fiber have a certain dielectric constant.
  • the foamed material layer L3 has an open-hole structure in the middle, the diameter of the open-holes is 0.8mm-1.2mm, and the hole pitch is 80mm-120mm.
  • the present invention can specifically aim at more working frequency bands and working bandwidth conditions of 5G communication, maintain better original equipment radiation field strength and coverage pattern, and play a role in equipment installation and use under the premise of maintaining better AAU coverage performance.
  • the coordination and aesthetic effect with the surrounding environment provide better site selection flexibility and reduce deployment difficulty for the construction of 5G base stations.

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  • Details Of Aerials (AREA)

Abstract

本发明公开了一种5G移动通信AAU天线罩，所述天线罩从外向内分为五层，包括第一细玻纤层、第一粗玻纤层、发泡材料层、第二粗玻纤层和第二细玻纤层，所述第一细玻纤层和第二细玻纤层均由玻璃纤维纱和热固性树脂组成，所述第一粗玻纤层和第二粗玻纤层均由玻璃纤维毡和热固性树脂组成，所述发泡材料层由聚氨酯泡沫组成，所述第一细玻纤层和第二细玻纤层的厚度均为0.2mm-0.4mm，所述第一粗玻纤层和第二粗玻纤层的厚度均为0.1mm-0.2mm，所述发泡材料层的厚度为20mm-30mm，发泡材料层的密度为60kg/m³-80 kg/m³。本发明可以使得特定电磁波的传输和反射特性达到较好的匹配状态，从而保持了原天线的辐射性能。

Description

一种5G移动通信AAU天线罩 技术领域
本发明涉及移动通信技术领域，更具体地说，特别涉及一种5G移动通信AAU天线罩。
 背景技术
第五代移动通信技术，是最新一代蜂窝移动通信技术，也是即4G（系统之后的延伸。5G的性能目标是高数据速率、减少延迟、节省能源、降低成本、提高系统容量和大规模设备连接。以往4G基站的无线接入部分，由BBU和RRU组成，RRU连接天线，进行移动通信信号的覆盖，由于室外基站RRU和天线的安装选址的多样性，一些站点需要安装在商业和住宅楼宇以及人员活动的区域，为了使得设备的外形与周边的环境更加协调和美观，一般在这些区域会使用美化的天线罩产品。天线罩将设备和覆盖天线包围在其中，除了外观要求之外，在电气性能上，应该要最小限度的减少对信号辐射功率和方向图的影响。
 技术问题
随着5G移动通信的发展，在基站覆盖端，RRU与天线集成化设计，形成一个多天线的AAU单元(Active Antenna Unit，有源天线单元)。由于5G使用的信号频段与4G相比频率更高（4G使用的频率为900MHz-2.7GHz，5G使用了已有4G频谱，同时主要部署在更高的3.5GHz，4.9GHz等频段），所以AAU的天线罩沿用以往4G天线罩的设计已经无法满足5G通信对其性能的要求，需要新的天线罩材料方案来解决这个问题。
 技术解决方案
本发明的目的在于提供一种5G移动通信AAU天线罩，能够专门针对5G通信的更多的工作频段和工作带宽条件下，保持较好的原设备辐射场强和覆盖的方向图，在保持较好AAU覆盖性能的前提下，起到设备安装使用与周边环境的协调和美观的作用，为5G基站建设提供更好的选址灵活性和降低部署难度。
为了达到上述目的，本发明采用的技术方案如下：
一种5G移动通信AAU天线罩，所述天线罩从外向内分为五层，包括第一细玻纤层、第一粗玻纤层、发泡材料层、第二粗玻纤层和第二细玻纤层，所述第一细玻纤层和第二细玻纤层均由玻璃纤维纱和热固性树脂组成，所述第一粗玻纤层和第二粗玻纤层均由玻璃纤维毡和热固性树脂组成，所述发泡材料层由聚氨酯泡沫组成，所述第一细玻纤层和第二细玻纤层的厚度均为0.2mm-0.4mm，所述第一粗玻纤层和第二粗玻纤层的厚度均为0.1mm-0.2mm，所述发泡材料层的厚度为20mm-30mm，发泡材料层的密度为60kg/m³-80 kg/m³。
进一步地，所述第一细玻纤层和第二细玻纤层中玻璃纤维纱和热固性树脂的总量比为50%：50%，所述第一粗玻纤层和第二粗玻纤层中玻璃纤维毡与热固性树脂的总量比为45%：55% 。
进一步地，所述发泡材料层中间为开孔结构，所述开孔的直径为0.8mm-1.2mm，且孔距为80mm-120mm。
 有益效果
与现有技术相比，本发明的优点在于：本发明可以使得特定电磁波的传输和反射特性达到较好的匹配状态，从而保持了原天线的辐射性能，能够专门针对5G通信的更多的工作频段和工作带宽条件下，保持较好的原设备辐射场强和覆盖的方向图，在保持较好AAU覆盖性能的前提下，起到设备安装使用与周边环境的协调和美观的作用，为5G基站建设提供更好的选址灵活性和降低部署难度。
 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术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发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明所述5G移动通信AAU天线罩的结构图。
图2是本发明所述5G移动通信AAU天线罩中发泡材料层中间开孔的结构图。
 本发明的实施方式
下面结合附图对本发明的优选实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。
参阅图1和图2所示，本发明提供一种5G移动通信AAU天线罩，所述天线罩从外向内分为五层，包括第一细玻纤层L1、第一粗玻纤层L2、发泡材料层L3、第二粗玻纤层L4和第二细玻纤层L5，所述第一细玻纤层L1和第二细玻纤层L4均由玻璃纤维纱和热固性树脂组成，可以形成天线罩的外层，起到美化、抗腐蚀、和透波的作用，所述第一粗玻纤层L2和第二粗玻纤层L5均由玻璃纤维毡和热固性树脂组成，可以起到提高材料的结构厚度及应力以及结构稳固度的作用，所述发泡材料层由聚氨酯泡沫组成，所述第一细玻纤层L1和第二细玻纤层L4的厚度均为0.2mm-0.4mm，所述第一粗玻纤层L2和第二粗玻纤层L5的厚度均为0.1mm-0.2mm，所述发泡材料层L3的厚度为20mm-30mm，发泡材料层L3的密度为60kg/m³-80 kg/m³。
本发明设置五层的目的是为了确保整体的耐侯性、可靠性以及生产加工的方便性考虑的。其中，玻纤纱厚度比较薄，容易控制树脂含量，但是贴合性不好，玻纤毡容易吸收树脂，但树脂含量不好控制，且厚度不好控制。第一细玻纤层L1、第一粗玻纤层L2和第二粗玻纤层L4、第二细玻纤层L5组合是为了满足较好的结构和电气性能考虑，玻纤树脂层的厚度与频率电性能有关、发泡材料层L3是为了填充第一细玻纤层L1、第一粗玻纤层L2和第二粗玻纤层L4、第二细玻纤层L5之间需要的间距要求和材料结构结构支撑要求。
由于第一细玻纤层L1、第一粗玻纤层L2和第二粗玻纤层L4、第二细玻纤层L5之间的间距是有要求的，中间的发泡材料层L3的设置一方面是用来稳固第一细玻纤层L1、第一粗玻纤层L2和第二粗玻纤层L4、第二细玻纤层L5作为一个整体结构，其厚度要求，与设计的频率响应有关，为保障2.5g-6g频率的通过性而设置。
所述的第一细玻纤层L1和第二细玻纤层L4中玻璃纤维纱和热固性树脂的总量比为50%：50%，所述第一粗玻纤层L2和第二粗玻纤层L5中玻璃纤维毡与热固性树脂的总量比为45%：55% 。本实施例中总量比的设置是为了确保达到设计的电性能，因为树脂和玻纤都有一定的介电常数。
所述的发泡材料层L3中间为开孔结构，所述开孔的直径为0.8mm-1.2mm，且孔距为80mm-120mm。
本发明能够专门针对5G通信的更多的工作频段和工作带宽条件下，保持较好的原设备辐射场强和覆盖的方向图，在保持较好AAU覆盖性能的前提下，起到设备安装使用与周边环境的协调和美观的作用，为5G基站建设提供更好的选址灵活性和降低部署难度。
虽然结合附图描述了本发明的实施方式，但是专利所有者可以在所附权利要求的范围之内做出各种变形或修改，只要不超过本发明的权利要求所描述的保护范围，都应当在本发明的保护范围之内。

Claims (3)

  1. 一种5G移动通信AAU天线罩，其特征在于，所述天线罩从外向内分为五层，包括第一细玻纤层、第一粗玻纤层、发泡材料层、第二粗玻纤层和第二细玻纤层，所述第一细玻纤层和第二细玻纤层均由玻璃纤维纱和热固性树脂组成，所述第一粗玻纤层和第二粗玻纤层均由玻璃纤维毡和热固性树脂组成，所述发泡材料层由聚氨酯泡沫组成，所述第一细玻纤层和第二细玻纤层的厚度均为0.2mm-0.4mm，所述第一粗玻纤层和第二粗玻纤层的厚度均为0.1mm-0.2mm，所述发泡材料层的厚度为20mm-30mm，发泡材料层的密度为60kg/m³-80 kg/m³。
  2. 根据权利要求1所述的5G移动通信AAU天线罩，其特征在于，所述第一细玻纤层和第二细玻纤层中玻璃纤维纱和热固性树脂的总量比为50%：50%，所述第一粗玻纤层和第二粗玻纤层中玻璃纤维毡与热固性树脂的总量比为45%：55%。
  3. 根据权利要求2所述的5G移动通信AAU天线罩，其特征在于，所述发泡材料层中间为开孔结构，所述开孔的直径为0.8mm-1.2mm，且孔距为80mm-120mm。
PCT/CN2019/124978 2019-12-05 2019-12-13 一种 5g 移动通信 aau 天线罩 WO2021109204A1 (zh)

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