EP2889961B1 - Reflecting board of base station antenna, and base station antenna - Google Patents

Reflecting board of base station antenna, and base station antenna Download PDF

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Publication number
EP2889961B1
EP2889961B1 EP13839361.6A EP13839361A EP2889961B1 EP 2889961 B1 EP2889961 B1 EP 2889961B1 EP 13839361 A EP13839361 A EP 13839361A EP 2889961 B1 EP2889961 B1 EP 2889961B1
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EP
European Patent Office
Prior art keywords
board
base station
side board
station antenna
reflection
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.)
Active
Application number
EP13839361.6A
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German (de)
French (fr)
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EP2889961A1 (en
EP2889961A4 (en
Inventor
Jianping Zhao
Hongli Peng
Wei Luo
Ni Ma
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of EP2889961A1 publication Critical patent/EP2889961A1/en
Publication of EP2889961A4 publication Critical patent/EP2889961A4/en
Application granted granted Critical
Publication of EP2889961B1 publication Critical patent/EP2889961B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • 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
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/106—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using two or more intersecting plane surfaces, e.g. corner reflector antennas

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a reflection board of a base station antenna and a base station antenna.
  • a base station antenna is an important component of a device that is used to receive and spread an electromagnetic wave
  • the base station antenna is a bridge of communication between a user terminal and a base station control device, and is widely applied to mobile communications and a wireless access communications system.
  • the base station antenna includes a reflection board, a radiating element, and a feeding network, where the reflection board can improve a characteristic of an electromagnetic wave of a communications base station antenna, particularly a beam characteristic. Therefore, the reflection board is an important component of the base station antenna and plays a main role in determining a directivity pattern of the antenna.
  • a reflection board in the prior art includes a flat board tilted to a horizontal direction, where the tilted flat board may correspond to multiple resonance frequencies. Therefore, the tilted flat board may be applied to a multiband base station antenna (for example, a base station antenna on a frequency band of 806-960 MHz, 1710-2170 MHz, or the like), so that an operating frequency range (bandwidth) of the base station antenna is relatively wide.
  • a directivity pattern has a relatively good capability of maintaining a characteristic in a relatively wide bandwidth (that is, consistency of the directivity pattern is relatively good), but this structure of the reflection board may lead to a relatively large size of the base station antenna.
  • a structure of the reflection board is a horizontal board.
  • This reflection board has a relatively small size, but an operating frequency range (bandwidth) of a base station antenna is relatively narrow because the reflection board corresponds to one resonance frequency, so that the reflection board can only maintain consistency of a directivity pattern at the resonance frequency and within a nearby narrowband range, and cannot meet a requirement of multiband operations. Therefore, it can be seen from the foregoing descriptions that a reflection board has become one of bottlenecks that restrict further miniaturization of a size of a communications base station antenna and wideband application of the communications base station antenna.
  • DE 29910570U1 discloses a reflection device of a base station antenna.
  • the reflection device has grooves as side boards and intermediate bottom wall portion.
  • the reflection device also has a central portion connected to inclined wall portions and horizontal wall portions, which in turn merge with the side wall portions of the respective grooves.
  • WO 2006/011844A1 discloses a reflector has at least two separate parts, and the parts are electrically coupled to each other to commonly form the earth plane of the antenna.
  • US 2007/139278A1 discloses an antenna housing used to reflect electromagnetic energy.
  • the antenna housing includes some steps and some sidewalls.
  • FIG. 1 to FIG. 4 show a specific embodiment of a reflection board of a base station antenna according to the present invention.
  • the reflection board of the base station includes a bottom board 1, a side board, and a step board 2, where the side board includes a first side board 3a and a second side board 3b that are opposite to each other, the first side board 3a and the second side board 3b are respectively disposed on two sides of the bottom board 1, the side board is connected to the step board 2, and the step board 2 is in contact with the bottom board 1.
  • the reflection board of the base station antenna provided in this embodiment of the present invention includes a bottom board 1, a side board, and a step board 2, where the side board includes a first side board 3a and a second side board 3b that are opposite to each other, the first side board 3a and the second side board 3b are respectively disposed on two sides of the bottom board 1, the side board is connected to the step board 2, and the step board 2 is in contact with the bottom board 1.
  • a size of the reflection board may be relatively small, and on the other hand, the step board 2 and the bottom board 1 may jointly form a step-shaped reflection board, so that a high-frequency electromagnetic wave may generate a resonance with a step at a relatively low location, and a low-frequency electromagnetic wave may generate a resonance with a step at a relatively high location. Therefore, a directivity pattern corresponding to the high-frequency electromagnetic wave may maintain a relatively consistent shape with a directivity pattern generated by the low-frequency electromagnetic wave.
  • the reflection board may have a relatively wide bandwidth.
  • both the first side board 3a and the second side board 3b are connected to the step board 2. In this way, it may further be ensured that the reflection board can maintain a relatively consistent directivity pattern in a relatively wide bandwidth, and a radiation characteristic of an electromagnetic wave is ensured.
  • the first side board 3a and the second side board 3b may also have a flap 30, where the flap 30 forms a step relative to the step board 2 and the bottom board 1.
  • the number of steps of the reflection board may further increase, thereby ensuring a radiation characteristic of an electromagnetic wave.
  • a flat board 5 parallel to the side board may be disposed at one end that is of the step board 2 and connected to the side board.
  • the flat board 5 may be installed on the step board 2 by using a fastener or a buckle, or may be installed on the step board 2 in a manner of welding or the like.
  • a third side board 4a and a fourth side board 4b may also be respectively disposed on another two sides of the bottom board 1; the first side board 3a, the third side board 4a, the fourth side board 4b, and the step board 2 form an enclosed structure; and the second side board 3b, the third side board 4a, the fourth side board 4b, and the step board 2 form an enclosed structure.
  • the first side board 3a, the second side board 3b, the third side board 4a, and the fourth side board 4b form a sealing board on the bottom board 1, and the sealing board can form an enclosed structure together with the step board 2 and the bottom board 1, which can better satisfy a radiation characteristic of an electromagnetic wave of the reflection board in a relatively wide bandwidth.
  • partition boards 6 perpendicular to the side board may be disposed on the bottom board 1 at intervals, where the partition boards 6 divide an area between the first side board 3a and the second side board 3b into multiple areas.
  • multiple areas for antenna arrangement may be formed on the reflection board, and antennas in neighboring areas may have better isolation, thereby avoiding mutual influence.
  • the partition boards 6 may be disposed on the bottom board 1 at equal intervals, or may also be disposed on the bottom board 1 at unequal intervals.
  • the step board 2 may be a straight L-shaped board, an oblique L-shaped board, a straight step-shaped board, or an oblique step-shaped board.
  • the straight step-shaped board is used in this embodiment of the present invention.
  • the step board 2 is disposed on the side board is that: the side board may be connected to the step board 2 by using a fastener; or the side board may be connected to the step board 2 by means of welding; or the side board may be connected to the step board 2 by using a buckle, which is not limited in this embodiment of the present invention, and may also be another connection manner known to a person skilled in the art.
  • the step board 2 is in contact with the bottom board 1 is that: the bottom board 1 may be connected to the step board 2 by using a fastener; or the bottom board 1 may be connected to the step board 2 by means of welding; or the bottom board 1 may be connected to the step board 2 by using a buckle, which is not limited in this embodiment of the present invention, and may also be another connection manner known to a person skilled in the art.
  • the reflection board of the base station antenna may reach a size of 468 mm ⁇ 140 mm ⁇ 40 mm.
  • a size of the bottom board 1 may be 454 mm ⁇ 120 mm ⁇ 1.5 mm; the first side board 3a and the second side board 3b are respectively disposed on two long edges of the bottom board 1, and both sizes of the first side board 3a and the second side board 3b may be 454 mm ⁇ 21.6 mm ⁇ 1.5 mm; a size of the flat board 5 parallel to the first side board 3a or the second side board 3b may be 418 mm ⁇ 21.6 mm ⁇ 1.5 mm, and a spacing between the flat board 5 and the first side board 3a or the second side board 3b is 7 mm.
  • a thickness and a length of the straight step-shaped board may be 1.5 mm and 418 mm, respectively, the straight step-shaped board has three steps, and sizes of horizontal/vertical parts of the steps are 6 mm/15 mm, 6 mm/15 mm, and 6 mm/6 mm, respectively.
  • a spacing between neighboring partition boards 6 may be 108 mm, and a length/width of each partition board 6 is 110 mm/16.2 mm.
  • a reflection board in this embodiment of the present invention may further cover an electromagnetic wave on multiple frequency bands within 1.71 to 2.69 GHz.
  • FIG. 5 is a directivity pattern corresponding to 1.71 GHz
  • FIG. 6 is a directivity pattern corresponding to 2.69 GHz. It can be seen from FIG. 5 and FIG. 6 that directivity patterns of electromagnetic waves on the two frequency bands are relatively similar. Therefore, this further illustrates that consistency of directivity patterns corresponding to high and low frequency bands is relatively high by using the reflection board in this embodiment of the present invention.
  • An embodiment of the present invention further provides a base station antenna, including a feeding network, a radiating element, and any one of the foregoing possible reflection boards.
  • the side board in the reflection board is connected to the step board 2, and the step board 2 is in contact with the bottom board 1.
  • a size of the reflection board may be relatively small, and on the other hand, the step board 2 and the bottom board 1 may also jointly form a step-shaped reflection board, so that a high-frequency electromagnetic wave may generate a resonance with a step at a relatively high location, and a low-frequency electromagnetic wave may generate a resonance with a step at a relatively low location. Therefore, a directivity pattern corresponding to the high-frequency electromagnetic wave may maintain a relatively consistent shape with a directivity pattern corresponding to the low-frequency electromagnetic wave.
  • the reflection board may have a relatively wide bandwidth.
  • a specific structure of the reflection board of the base station antenna provided in this embodiment of the present invention may be any one of the foregoing possible manners. Therefore, details are not described herein again.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Aerials With Secondary Devices (AREA)

Description

    TECHNICAL FIELD
  • The present invention relates to the field of communications technologies, and in particular, to a reflection board of a base station antenna and a base station antenna.
    • BACKGROUND
  • A base station antenna is an important component of a device that is used to receive and spread an electromagnetic wave, and the base station antenna is a bridge of communication between a user terminal and a base station control device, and is widely applied to mobile communications and a wireless access communications system. The base station antenna includes a reflection board, a radiating element, and a feeding network, where the reflection board can improve a characteristic of an electromagnetic wave of a communications base station antenna, particularly a beam characteristic. Therefore, the reflection board is an important component of the base station antenna and plays a main role in determining a directivity pattern of the antenna.
  • Nowadays, a reflection board in the prior art includes a flat board tilted to a horizontal direction, where the tilted flat board may correspond to multiple resonance frequencies. Therefore, the tilted flat board may be applied to a multiband base station antenna (for example, a base station antenna on a frequency band of 806-960 MHz, 1710-2170 MHz, or the like), so that an operating frequency range (bandwidth) of the base station antenna is relatively wide. Meanwhile, a directivity pattern has a relatively good capability of maintaining a characteristic in a relatively wide bandwidth (that is, consistency of the directivity pattern is relatively good), but this structure of the reflection board may lead to a relatively large size of the base station antenna. In addition, for another reflection board in the prior art, a structure of the reflection board is a horizontal board. This reflection board has a relatively small size, but an operating frequency range (bandwidth) of a base station antenna is relatively narrow because the reflection board corresponds to one resonance frequency, so that the reflection board can only maintain consistency of a directivity pattern at the resonance frequency and within a nearby narrowband range, and cannot meet a requirement of multiband operations. Therefore, it can be seen from the foregoing descriptions that a reflection board has become one of bottlenecks that restrict further miniaturization of a size of a communications base station antenna and wideband application of the communications base station antenna.
  • DE 29910570U1 discloses a reflection device of a base station antenna. The reflection device has grooves as side boards and intermediate bottom wall portion. The reflection device also has a central portion connected to inclined wall portions and horizontal wall portions, which in turn merge with the side wall portions of the respective grooves.
  • WO 2006/011844A1 discloses a reflector has at least two separate parts, and the parts are electrically coupled to each other to commonly form the earth plane of the antenna.
  • US 2007/139278A1 discloses an antenna housing used to reflect electromagnetic energy. The antenna housing includes some steps and some sidewalls.
    • SUMMARY
  • The foregoing problems are solved by the reflection board of a base station antenna according to claim 1 and the base station antenna according to claim 7. The dependent claims describe advantageous embodiments the reflection board.
    • BRIEF DESCRIPTION OF DRAWINGS
  • To describe the technical solutions in the embodiments of the present invention or in the prior art more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments or the prior art. Apparently, the accompanying drawings in the following description show merely some embodiments of the present invention, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.
    • FIG. 1 is a schematic diagram of a reflection board of a base station antenna according to an embodiment of the present invention;
    • FIG. 2 is a schematic diagram of a bottom board in FIG. 1;
    • FIG. 3 is a schematic diagram of a first side board, a second side board, and a flat board in FIG. 1;
    • FIG. 4 is a schematic diagram of a step board in FIG. 1;
    • FIG. 5 is a directivity pattern corresponding to a reflection board of a base station antenna when operating frequency of the reflection board is 1.71 GHz according to an embodiment of the present invention; and
    • FIG. 6 is a directivity pattern corresponding to a reflection board of a base station antenna when operating frequency of the reflection board is 2.69 GHz according to an embodiment of the present invention.
    Reference numerals:
  • 1-bottom board, 2-step board, 3a-first side board, 3b-second side board, 30-flap, 4a-third side board, 4b-fourth side board, 5-flat board, and 6-partition board
    • DESCRIPTION OF EMBODIMENTS
  • The following clearly describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are merely a part rather than all of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
  • FIG. 1 to FIG. 4 show a specific embodiment of a reflection board of a base station antenna according to the present invention. The reflection board of the base station includes a bottom board 1, a side board, and a step board 2, where the side board includes a first side board 3a and a second side board 3b that are opposite to each other, the first side board 3a and the second side board 3b are respectively disposed on two sides of the bottom board 1, the side board is connected to the step board 2, and the step board 2 is in contact with the bottom board 1.
  • The reflection board of the base station antenna provided in this embodiment of the present invention includes a bottom board 1, a side board, and a step board 2, where the side board includes a first side board 3a and a second side board 3b that are opposite to each other, the first side board 3a and the second side board 3b are respectively disposed on two sides of the bottom board 1, the side board is connected to the step board 2, and the step board 2 is in contact with the bottom board 1. In this way, on one hand, a size of the reflection board may be relatively small, and on the other hand, the step board 2 and the bottom board 1 may jointly form a step-shaped reflection board, so that a high-frequency electromagnetic wave may generate a resonance with a step at a relatively low location, and a low-frequency electromagnetic wave may generate a resonance with a step at a relatively high location. Therefore, a directivity pattern corresponding to the high-frequency electromagnetic wave may maintain a relatively consistent shape with a directivity pattern generated by the low-frequency electromagnetic wave. In addition, because there is a relatively wide range between the high-frequency electromagnetic wave and the low-frequency electromagnetic wave, the reflection board may have a relatively wide bandwidth.
  • Referring to FIG. 1 and FIG. 4, both the first side board 3a and the second side board 3b are connected to the step board 2. In this way, it may further be ensured that the reflection board can maintain a relatively consistent directivity pattern in a relatively wide bandwidth, and a radiation characteristic of an electromagnetic wave is ensured.
  • It should be noted that, referring to FIG. 1 and FIG. 4, the first side board 3a and the second side board 3b may also have a flap 30, where the flap 30 forms a step relative to the step board 2 and the bottom board 1. In this way, the number of steps of the reflection board may further increase, thereby ensuring a radiation characteristic of an electromagnetic wave.
  • Still referring to FIG. 1 and FIG. 4, a flat board 5 parallel to the side board may be disposed at one end that is of the step board 2 and connected to the side board. In this way, a radiation characteristic of an electromagnetic wave of the reflection board in a relatively wide bandwidth may further be satisfied, where the flat board 5 may be installed on the step board 2 by using a fastener or a buckle, or may be installed on the step board 2 in a manner of welding or the like.
  • As shown in FIG. 1, a third side board 4a and a fourth side board 4b may also be respectively disposed on another two sides of the bottom board 1; the first side board 3a, the third side board 4a, the fourth side board 4b, and the step board 2 form an enclosed structure; and the second side board 3b, the third side board 4a, the fourth side board 4b, and the step board 2 form an enclosed structure. In this way, the first side board 3a, the second side board 3b, the third side board 4a, and the fourth side board 4b form a sealing board on the bottom board 1, and the sealing board can form an enclosed structure together with the step board 2 and the bottom board 1, which can better satisfy a radiation characteristic of an electromagnetic wave of the reflection board in a relatively wide bandwidth.
  • To satisfy an arrangement of an array antenna, partition boards 6 perpendicular to the side board may be disposed on the bottom board 1 at intervals, where the partition boards 6 divide an area between the first side board 3a and the second side board 3b into multiple areas. In this way, multiple areas for antenna arrangement may be formed on the reflection board, and antennas in neighboring areas may have better isolation, thereby avoiding mutual influence.
  • Optionally, the partition boards 6 may be disposed on the bottom board 1 at equal intervals, or may also be disposed on the bottom board 1 at unequal intervals.
  • In addition, the step board 2 may be a straight L-shaped board, an oblique L-shaped board, a straight step-shaped board, or an oblique step-shaped board. Optionally, the straight step-shaped board is used in this embodiment of the present invention.
  • Optionally, that the step board 2 is disposed on the side board is that: the side board may be connected to the step board 2 by using a fastener; or the side board may be connected to the step board 2 by means of welding; or the side board may be connected to the step board 2 by using a buckle, which is not limited in this embodiment of the present invention, and may also be another connection manner known to a person skilled in the art.
  • Similarly and optionally, that the step board 2 is in contact with the bottom board 1 is that: the bottom board 1 may be connected to the step board 2 by using a fastener; or the bottom board 1 may be connected to the step board 2 by means of welding; or the bottom board 1 may be connected to the step board 2 by using a buckle, which is not limited in this embodiment of the present invention, and may also be another connection manner known to a person skilled in the art.
  • By using the foregoing solutions, the reflection board of the base station antenna may reach a size of 468 mm∗140 mm∗40 mm. Specifically, a size of the bottom board 1 may be 454 mm ∗120 mm∗1.5 mm; the first side board 3a and the second side board 3b are respectively disposed on two long edges of the bottom board 1, and both sizes of the first side board 3a and the second side board 3b may be 454 mm∗21.6 mm∗1.5 mm; a size of the flat board 5 parallel to the first side board 3a or the second side board 3b may be 418 mm∗21.6 mm∗1.5 mm, and a spacing between the flat board 5 and the first side board 3a or the second side board 3b is 7 mm. Optionally, a thickness and a length of the straight step-shaped board may be 1.5 mm and 418 mm, respectively, the straight step-shaped board has three steps, and sizes of horizontal/vertical parts of the steps are 6 mm/15 mm, 6 mm/15 mm, and 6 mm/6 mm, respectively. A spacing between neighboring partition boards 6 may be 108 mm, and a length/width of each partition board 6 is 110 mm/16.2 mm. A reflection board in this embodiment of the present invention may further cover an electromagnetic wave on multiple frequency bands within 1.71 to 2.69 GHz. FIG. 5 is a directivity pattern corresponding to 1.71 GHz, and FIG. 6 is a directivity pattern corresponding to 2.69 GHz. It can be seen from FIG. 5 and FIG. 6 that directivity patterns of electromagnetic waves on the two frequency bands are relatively similar. Therefore, this further illustrates that consistency of directivity patterns corresponding to high and low frequency bands is relatively high by using the reflection board in this embodiment of the present invention.
  • An embodiment of the present invention further provides a base station antenna, including a feeding network, a radiating element, and any one of the foregoing possible reflection boards.
  • Referring to FIG. 1 to FIG. 4 and according to the base station antenna provided in this embodiment of the present invention, the side board in the reflection board is connected to the step board 2, and the step board 2 is in contact with the bottom board 1. In this way, on one hand, a size of the reflection board may be relatively small, and on the other hand, the step board 2 and the bottom board 1 may also jointly form a step-shaped reflection board, so that a high-frequency electromagnetic wave may generate a resonance with a step at a relatively high location, and a low-frequency electromagnetic wave may generate a resonance with a step at a relatively low location. Therefore, a directivity pattern corresponding to the high-frequency electromagnetic wave may maintain a relatively consistent shape with a directivity pattern corresponding to the low-frequency electromagnetic wave. In addition, because there is a relatively wide range between the high-frequency electromagnetic wave and the low-frequency electromagnetic wave, the reflection board may have a relatively wide bandwidth.
  • A specific structure of the reflection board of the base station antenna provided in this embodiment of the present invention may be any one of the foregoing possible manners. Therefore, details are not described herein again.

Claims (7)

  1. A reflection board of a base station antenna, comprising a bottom board (1), a side board, and two step boards (2), wherein the side board comprises a first side board (3a) and a second side board (3b) that are opposite to each other, the first side board (3a) and the second side board (3b) are respectively disposed on the two long edges of the bottom board (1), the side board is connected to the two step boards (2), and the step boards (2) are in contact with the bottom board (1);
    wherein the first side board (3a) is connected to a first step board (2) of the two step boards, and has a flap (30), the flap (30) forms a step relative to the first step board (2) and the bottom board (1);
    wherein a first flat board (5) parallel to the first side board (3a) is installed on an end of the first step board (2) that is connected to the first side board (3a);
    wherein the second side board (3b) is connected to a second step board (2), and has a flap (30), the flap (30) forms a step relative to the second step board (2) and the bottom board (1);
    wherein a second flat board (5) parallel to the second side board (3b) is installed on an end of the second step board (2) that is connected to the second side board (3b);
    wherein a third side board (4a) and a fourth side board (4b) are respectively disposed on another two sides of the bottom board (1); and
    the first side board (3a), the third side board (4a), the fourth side board (4b), the first step board (2) and the bottom board (1) form an enclosed structure; and the second side board (3b), the third side board (4a), the fourth side board (4b), the second step board (2) and the bottom board (2) form an enclosed structure.
  2. The reflection board of the base station antenna according to claim 1, wherein partition boards (6) perpendicular to the first and second side board are disposed on the bottom board (1) at intervals, and the partition boards divide an area between the first side board (3a) and the second side board (3b) into multiple areas.
  3. The reflection board of the base station antenna according to claim 2, wherein the partition boards (6) are disposed on the bottom board (1) at equal intervals.
  4. The reflection board of the base station antenna according to claim 3, wherein the step board (2) is a straight L-shaped board, an oblique L-shaped board, a straight step-shaped board, or an oblique step-shaped board.
  5. The reflection board of the base station antenna according to claim 1, wherein
    the side board is connected to the step board (2) by using a fastener; or
    the side board is connected to the step board (2) by means of welding; or
    the side board is connected to the step board (2) by using a buckle.
  6. The reflection board of the base station antenna according to claim 1, wherein the bottom board (1) is connected to the step board (2) by using a fastener; or
    the bottom board (1) is connected to the step board (2) by means of welding; or
    the bottom board (1) is connected to the step board (2) by using a buckle.
  7. A base station antenna, comprising a feeding network, a radiating element, and the reflection board according to any one of claims 1 to 6.
EP13839361.6A 2012-09-18 2013-09-18 Reflecting board of base station antenna, and base station antenna Active EP2889961B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2012204760861U CN202797292U (en) 2012-09-18 2012-09-18 Reflecting board of base station antennae and base station antenna
PCT/CN2013/083785 WO2014044194A1 (en) 2012-09-18 2013-09-18 Reflecting board of base station antenna, and base station antenna

Publications (3)

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EP2889961A1 EP2889961A1 (en) 2015-07-01
EP2889961A4 EP2889961A4 (en) 2015-07-29
EP2889961B1 true EP2889961B1 (en) 2020-05-06

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202797292U (en) * 2012-09-18 2013-03-13 华为技术有限公司 Reflecting board of base station antennae and base station antenna
CN107004954B (en) * 2014-12-31 2020-07-28 深圳市大富科技股份有限公司 Dual-band antenna and antenna system

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WO2014044194A1 (en) 2014-03-27
CN202797292U (en) 2013-03-13
EP2889961A1 (en) 2015-07-01
EP2889961A4 (en) 2015-07-29

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