EP4386982A1 - Radom und antennenvorrichtung - Google Patents

Radom und antennenvorrichtung Download PDF

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Publication number
EP4386982A1
EP4386982A1 EP22866655.8A EP22866655A EP4386982A1 EP 4386982 A1 EP4386982 A1 EP 4386982A1 EP 22866655 A EP22866655 A EP 22866655A EP 4386982 A1 EP4386982 A1 EP 4386982A1
Authority
EP
European Patent Office
Prior art keywords
antenna
antenna radome
arc segment
segment
arc
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.)
Pending
Application number
EP22866655.8A
Other languages
English (en)
French (fr)
Other versions
EP4386982A4 (de
Inventor
Tianyong YANG
Wei Zhang
Haijun YU
Ge Zhang
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies 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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP4386982A1 publication Critical patent/EP4386982A1/de
Publication of EP4386982A4 publication Critical patent/EP4386982A4/de
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/005—Damping of vibrations; Means for reducing wind-induced forces
    • 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
    • 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

Definitions

  • This application relates to the field of antennas, and specifically, to an antenna radome and an antenna apparatus including the antenna radome.
  • low-wind-load designs for antenna radomes become one of main development directions in the industry.
  • antenna radomes in the conventional technology low-wind-load designs for antenna radomes have been implemented by means such as additionally disposing a vortex generator and constructing an antenna radome having a special structure.
  • these designs can only optimize a wind load of an antenna radome in a specific wind direction (windward angle).
  • the antenna radome disclosed in the patent literature whose publication number is DE202018006123U1 can decrease only a wind load in a specific direction, but increases wind loads in other directions.
  • a peak value of a wind load is decreased by disposing a tripwire on an antenna radome.
  • the solution optimizes only a wind load of side wind on an antenna apparatus, but causes an adverse impact on wind loads of wind from other directions.
  • this application provides an antenna radome, which can greatly optimize an omni-directional wind load when compared with an existing antenna radome.
  • this application further provides an antenna apparatus including the foregoing antenna radome.
  • the antenna apparatus has an effect the same as that described above.
  • an embodiment of this application provides an antenna radome.
  • a space for accommodating an antenna is formed in the antenna radome; and in a cross section perpendicular to the length direction of the antenna radome, at least a part of an antenna radome body of the antenna radome has the following section shape:
  • the section shape is formed as a closed shape, where the section shape includes a linear segment, and the section shape is symmetric with respect to a reference line that passes through the midpoint of the linear segment and that is perpendicular to the linear segment; and on each side of the reference line, the section shape includes a plurality of arc segments that are connected to the end, on the side, of the linear segment, all circle centers corresponding to the arc segments are in the closed shape, and curvature radii of the plurality of arc segments sequentially increase from the end on the side.
  • the antenna radome that is of this application and that has the foregoing section shape can optimize a wind load imposed on the antenna radome by wind from various directions, thereby decreasing wind resistance.
  • a chamfer is formed at the joint between two adjacent arc segments.
  • Adjacent arc segments can be connected smoothly according to the foregoing technical solution, so that the wind load imposed on the antenna radome by the wind from various directions can be further optimized, thereby decreasing the wind resistance.
  • the section shape on one side of the reference line, includes a first arc segment, a second arc segment, and a third arc segment; one end of the first arc segment is connected to the end, on the one side, of the linear segment; the other end of the first arc segment is connected to one end of the second arc segment; and the other end of the second arc segment is connected to one end of the third arc segment.
  • the antenna radome in this application can be constructed easily.
  • the length of the third arc segment is greater than the length of the first arc segment, and the length of the first arc segment is greater than the length of the second arc segment.
  • a length relationship between different arc segments is set according to the foregoing technical solution. This helps further optimize the wind load imposed on the antenna radome by the wind from various directions.
  • an x-axis is along a straight line on which the linear segment is located, a forward direction of the x-axis faces the one side, a y-axis is along the reference line, and a forward direction of the y-axis faces the third arc segment;
  • a dimensionless function relationship among the arc segments is set according to the foregoing technical solution. This helps construct an optimal section shape.
  • the section shape in this application can be applied to antennas of different sizes.
  • the length of the linear segment is 2a.
  • a length relationship between the linear segment and the arc segment connected to the linear segment is further defined according to the foregoing technical solution.
  • the antenna radome further includes a tripwire secured to the antenna radome body; the tripwire extends in the length direction of the antenna radome body; and the tripwire forms a structure protruding from the outer surface of the antenna radome body.
  • the tripwire is disposed to separate airflow at an expected position on the antenna radome, so that the wind load imposed on the antenna radome by the wind from various directions can be further optimized.
  • the antenna radome further includes a tripwire secured to the antenna radome body; the tripwire extends in the length direction of the antenna radome body; the tripwire forms a structure protruding from the outer surface of the antenna radome body; and the tripwire is disposed at the midpoint of the third arc segment and/or disposed at the joint between the first arc segment and the second arc segment.
  • the tripwire is disposed to separate airflow at an expected position on the antenna radome, so that the wind load imposed on the antenna radome by the wind from various directions can be further optimized.
  • the length of the tripwire is equal to the length of the antenna radome body.
  • the foregoing technical solution helps the tripwire give full play to a capability of separating the airflow at the expected position on the antenna radome.
  • the shape, in the cross section, of the tripwire is a rectangle, a trapezoid, or a triangle.
  • the foregoing technical solution helps manufacture the tripwire.
  • an embodiment of this application provides an antenna apparatus.
  • the antenna apparatus includes the antenna radome according to any one of the foregoing technical solutions.
  • the antenna apparatus including the antenna radome in this application can play the functions of the antenna radome described above.
  • the antenna apparatus includes a plurality of antenna radomes; and the plurality of antenna radomes are arranged in a circular array.
  • the foregoing technical solution is an advantageous arrangement solution for the antenna radome in this application.
  • the antenna apparatus is an antenna apparatus used in a wireless base station of a communication network.
  • the foregoing technical solution provides an optional application scenario for the antenna radome.
  • example herein means “used as an example, embodiment or illustration”. Any embodiment described as an “example” is not necessarily explained as being superior or better than other embodiments.
  • length direction is the length direction of an antenna radome (an antenna radome body).
  • the antenna radome in this application a section shape of the antenna radome body is changed, and a tripwire is further disposed at a specific position of the antenna radome body based on a transition position and a separation position that are of airflow and that are obtained via experiments, so that the antenna radome in this application achieves omni-directional wind load optimization when compared with an existing antenna radome.
  • the entire antenna radome according to this embodiment of this application has a structure of a long rod that extends linearly.
  • the antenna radome includes an antenna radome body 1 and a tripwire 2 secured to the outer surface of the antenna radome body 1.
  • the antenna radome body 1 has a cross section perpendicular to the length direction L of the antenna radome. Section shapes of all portions of the antenna radome body 1 are the same. In this application, omni-directional wind load optimization is implemented by optimizing the section shape of the antenna radome body 1 of the antenna radome.
  • the section shape of the antenna radome body 1 is formed as a closed shape.
  • the section shape includes a linear segment LS and a plurality of arc segments ARC1 to ARC6.
  • the section shape is symmetric with respect to a reference line that passes through the midpoint of the linear segment LS and that is perpendicular to the linear segment LS.
  • the section shape On one side (the right side in FIG. 3 ) of the reference line, the section shape includes a first arc segment ARC1 that is connected to the end, on the one side, of the linear segment LS, a second arc segment ARC2, and a third arc segment ARC3.
  • the section shape of the cross section of the antenna radome body 1 is symmetric with respect to the reference line.
  • the section shape includes a fourth arc segment ARC4 that is connected to the end, on the other side, of the linear segment LS, a fifth arc segment ARC5, and a sixth arc segment ARC6.
  • the fourth arc segment ARC4 and the first arc segment ARC1 are symmetric to each other with respect to the reference line.
  • the fifth arc segment ARC5 and the second arc segment ARC2 are symmetric to each other with respect to the reference line.
  • the sixth arc segment ARC6 and the third arc segment ARC3 are symmetric to each other with respect to the reference line.
  • One end of the fourth arc segment ARC4 is connected to the end, on the other side, of the linear segment LS.
  • the other end of the fourth arc segment ARC4 is connected to one end of the fifth arc segment ARC5.
  • the other end of the fifth arc segment ARC5 is connected to one end of the sixth arc segment ARC6.
  • the other end of the sixth arc segment ARC6 is connected to the other end of the third arc segment ARC3.
  • the other ends of the sixth arc segment ARC6 and the third arc segment ARC3 overlap and are both on the reference line.
  • the sixth arc segment ARC6 and the third arc segment ARC3 may be considered as a same arc segment.
  • All circle centers corresponding to the arc segments are in the closed shape.
  • the curvature radii of the arc segments ARC1 to ARC3 sequentially increase from the end, on the one side, of the linear segment LS, that is, the curvature radius of the first arc segment ARC1 is less than the curvature radius of the second arc segment ARC2, and the curvature radius of the second arc segment ARC2 is less than the curvature radius of the third arc segment.
  • the length of the third arc segment ARC3 is greater than the length of the first arc segment ARC1, and the length of the first arc segment ARC1 is greater than the length of the second arc segment ARC2.
  • the curvature radii of the arc segments ARC4 to ARC6 sequentially increase from the end, on the other side, of the linear segment LS, that is, the curvature radius of the fourth arc segment ARC4 is less than the curvature radius of the fifth arc segment ARC5, and the curvature radius of the fifth arc segment ARC5 is less than the curvature radius of the sixth arc segment.
  • the length of the sixth arc segment ARC6 is greater than the length of the fourth arc segment ARC4, and the length of the fourth arc segment ARC4 is greater than the length of the fifth arc segment ARC5.
  • a chamfer is formed on the outer surface of the joint between two adjacent arc segments, so that all the arc segments are connected smoothly.
  • the antenna radome body 1 having the foregoing section shape is constructed. This helps optimize the wind load imposed on the antenna radome by the wind from various directions, thereby decreasing the wind resistance.
  • an x-axis is along a straight line on which the linear segment LS is located, a forward direction of the x-axis faces the one side of the reference line, a y-axis is along the reference line, and a forward direction of the y-axis faces the third arc segment ARC3 and the sixth arc segment ARC6.
  • the section shape of the cross section of the antenna radome body 1 is symmetric with respect to the reference line. Therefore, the three arc segments on the other side of the reference line satisfy the following relational expressions:
  • the length of the linear segment LS is 2a.
  • a is a dimensionless constant and may be any real number. Setting of the foregoing dimensionless function relationships helps apply the section shape in this application to antennas of different sizes.
  • the tripwire 2 extends in the length direction L of the antenna radome body 1; and the length of the tripwire 2 is equal to the length of the antenna radome body 1.
  • the tripwire 2 is formed as a structure protruding from the outer surface of the antenna radome body 1.
  • the tripwire 2 is disposed at the midpoint portion of the third arc segment ARC3, the midpoint portion of the sixth arc segment, the joint between the first arc segment ARC1 and the second arc segment ARC2, and the joint between the fourth arc segment and the fifth arc segment. Due to disposing of the tripwire 2, airflow formed by wind can be separated at an expected position on the antenna radome, so that the wind load imposed on the antenna radome by the wind from various directions can be further optimized.
  • the shape, in the cross section, of the tripwire 2 may be a rectangle, a trapezoid (for example, an isosceles trapezoid), or a triangle (for example, an equilateral triangle).
  • the maximum height by which the tripwire 2 protrudes from the outer surface of the antenna radome body 1 may be about 1 mm.
  • the cross section of the tripwire 2 is a rectangle, and a long edge of the rectangle is connected to the outer surface of the antenna radome body 1, the length of the short edge of the rectangle is about 1 mm.
  • the height of the isosceles trapezoid is about 1 mm.
  • the cross section of the tripwire 2 is an equilateral triangle, and one edge of the equilateral triangle is connected to the outer surface of the antenna radome body 1, the height of the equilateral triangle is about 1 mm.
  • another dimension of the cross section of the tripwire 2 may be set as required.
  • the dimension of the long bottom edge of the isosceles trapezoid may be 5 mm, and the dimension of the short bottom edge may be 4 mm.
  • the antenna radome having the foregoing section dimension has the following advantage: Wind resistance in most directions can be optimized.
  • Table 1 shows actually measured parameters of wind tunnel experiments performed on an existing antenna radome (whose section shape has a flat structure) and the antenna radome (whose section shape has the shape described above, namely, a shape similar to a mushroom) in this application.
  • Table 1 Windward angle Wind resistance of an existing antenna radome Wind resistance of the antenna radome in this application Increased by 0° 1088 651 -67.3% 10° 1060 677 -56.4% 20° 1256 636 -97.6% 30° 1139 623 -82.9% 40° 1050 720 -45.8% 50° 940 844 -11.3% 60° 946 933 -1.4% 70° 927 871 -6.5% 80° 647 877 26.2% 90° 753 897 16.1% 100° 977 853 -14.5% 110° 851 890 4.4% 120° 1058 970 -9.1% 130° 1135 877 -29.4% 140° 1139 798 -42.8% 150° 1083 800 -35.5% 160° 933 803 -16.2% 170° 823 760 -8.3% 180° 633 695 9.0%
  • the antenna radome in the wind tunnel is in the following first state:
  • the wind direction in the wind tunnel directly faces a protruding peak portion of the antenna radome in this application (that is, the wind direction faces a portion formed by the other ends of the third arc segment ARC3 and the sixth arc segment ARC6 of each section of the antenna radome, and the wind direction is an extending direction of the reference line).
  • the antenna radome in the wind tunnel is in the following second state:
  • the wind direction in the wind tunnel directly faces a flat portion of the antenna radome in this application (that is, the wind direction faces a portion formed by the linear segment LS of each section of the antenna radome, and the wind direction is the extending direction of the reference line).
  • the other windward angles are angles by which the antenna radome turns about the central axis of the antenna radome from the first state to the second state.
  • the antenna apparatus may be an antenna apparatus used in a wireless base station of a communication network. Based on a condition of a component that implements an antenna function, the antenna apparatus may include one or more antenna radomes. When the antenna apparatus includes a plurality of antenna radomes, these antenna radomes are arranged in a circular array, and a protruding portion of each antenna radome faces the outer side of the circular array.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
EP22866655.8A 2021-09-13 2022-09-07 Radom und antennenvorrichtung Pending EP4386982A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111068308.6A CN115810910A (zh) 2021-09-13 2021-09-13 天线罩及天线装置
PCT/CN2022/117609 WO2023036192A1 (zh) 2021-09-13 2022-09-07 天线罩及天线装置

Publications (2)

Publication Number Publication Date
EP4386982A1 true EP4386982A1 (de) 2024-06-19
EP4386982A4 EP4386982A4 (de) 2024-12-25

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EP22866655.8A Pending EP4386982A4 (de) 2021-09-13 2022-09-07 Radom und antennenvorrichtung

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EP (1) EP4386982A4 (de)
CN (1) CN115810910A (de)
WO (1) WO2023036192A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120021097A (zh) * 2023-11-20 2025-05-20 中兴通讯股份有限公司 天线罩和天线装置
CN120414066A (zh) * 2024-02-01 2025-08-01 华为技术有限公司 天线罩、天线和天线系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201383537Y (zh) * 2009-02-24 2010-01-13 烟台宏益微波科技有限公司 天线罩
US9979079B2 (en) 2015-02-23 2018-05-22 Quintel Technology Limited Apparatus and method to reduce wind load effects on base station antennas
CN107394339B (zh) * 2017-06-14 2019-08-06 西安华为技术有限公司 一种基站天线
WO2019161818A1 (de) 2018-02-23 2019-08-29 Kathrein Se Antennengehäuse und struktur für antennengehäuse
CN208272135U (zh) * 2018-06-26 2018-12-21 江苏亨鑫科技有限公司 一种低风阻天线罩
CN208460979U (zh) * 2018-08-09 2019-02-01 东莞东石新材料开发有限公司 一种双组份聚氨酯高强度天线罩
CN109638449A (zh) * 2019-01-04 2019-04-16 中国联合网络通信集团有限公司 室外天线防护安装装置
CN112018515B (zh) * 2020-07-23 2025-02-07 普罗斯通信技术（苏州）有限公司 一种用于降低天线风阻的装置

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EP4386982A4 (de) 2024-12-25
WO2023036192A1 (zh) 2023-03-16
CN115810910A (zh) 2023-03-17

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