EP2389710A1 - An enclosure and mounting assembly for an antenna - Google Patents
An enclosure and mounting assembly for an antennaInfo
- Publication number
- EP2389710A1 EP2389710A1 EP09738156A EP09738156A EP2389710A1 EP 2389710 A1 EP2389710 A1 EP 2389710A1 EP 09738156 A EP09738156 A EP 09738156A EP 09738156 A EP09738156 A EP 09738156A EP 2389710 A1 EP2389710 A1 EP 2389710A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- radome
- chimney
- mounting
- base station
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 239000004411 aluminium Substances 0.000 claims description 24
- 229910052782 aluminium Inorganic materials 0.000 claims description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 24
- 239000000428 dust Substances 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000001413 cellular effect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229920007019 PC/ABS Polymers 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
Definitions
- Embodiments of the present invention relate to an enclosure and mounting assembly for an antenna.
- base stations provide the coverage for end user access.
- the most popular macro base station has one or several radios or transmitters and receivers (TRX) inside, configured in one or several sector fashion, and covers a radius of a few kilometres.
- TRX transmitters and receivers
- Antennas are mostly external, large in size, and connected to the TRX via cables and connectors.
- the whole base station needs a specialized cellular site to install, due to the physical size of equipment, high power consumption, and height requirements.
- the traditional Macro cells have to be scaled down to Micro or even Pico cells, with a radius shrinking from a few kilometres to a few hundred meters.
- the mounting sites for such small base stations are less cellular specific, such as walls of building, rooftop of building, street light post, utility poles, traffic lights, etc...
- an apparatus comprising: a radome; and a tube disposed within, and mounted to, the radome, wherein the tube has an outer surface adapted for mounting transmitter and/or receiver components thereon and an inner surface defining a cooling chimney, and wherein the radome has an opening at each end of the tube for allowing air to circulate through the cooling chimney.
- the aforementioned arrangement has been found to provide a low cost, compact, and readily constructed apparatus for embedding multiple active antennas in an enclosed structure.
- the central tube serves to form both a mounting and isolation structure for the transmitter and/or receiver components and also a cooling chimney for removing heat generated by the transmitter and/or receiver components.
- the tube also acts as a structural backbone for the apparatus.
- the tube may have a plurality of sides and be adapted for mounting a transmitter and/or receiver on each one of the sides.
- the tube may have a substantially triangular cross-section.
- An active antenna may be mounted on each of the three sides of the triangular cross-sectioned tube.
- the radome may also have a substantially triangular cross- section for compactness and ease of mounting the tube therein.
- the complementary shape of the tube and radome also aids in sealing areas where the transmitter and/or receiver components are mounted.
- the tube may be made of aluminium.
- An aluminium tube is lightweight and has been found to be ideal in functioning as a structural backbone, a radio frequency insulator among sectors, and a heat sink for electronic components.
- the tube may comprise one or more cross-bracing elements disposed within the cooling chimney between points on the inner surface of the tube. The one or more cross-bracing elements function to strengthening the apparatus while still allowing air to flow through the cooling chimney.
- the radome may be made of plastic which is lightweight and provides RF- transparency to embedded antennas.
- the radome may comprise a handle on an outer surface thereof for carrying the apparatus.
- the handle is disposed over one of the openings in the radome for reducing ingress of moisture, dust, and/or other debris while still allowing air to exit the opening.
- the apparatus may be adapted to be mounted with the tube orientated in a vertical direction with a top and bottom opening. Air can then circulate up the chimney with cool air entering through the bottom opening and heated air exiting through the top opening by convection.
- the handle may be disposed thereover.
- a bottom plate may be provided for mounting the tube to the radome.
- one of the openings in the radome for allowing air to circulate through the cooling chimney may be defined by the bottom plate.
- the tube may be mounted to the radome to form a seal at each end of the tube isolating air within the cooling chimney from a region between the outer surface of the tube and an inner surface of the radome.
- a gasket may be provided at each end of the tube to form the seal.
- the region between the outer surface of the tube and the inner surface of the radome may be sealed to an ingress protection rating of at least 67 (IP67).
- IP67 ingress protection rating of at least 67
- Such a seal protects electronic components mounted therein from dust and moisture.
- the transmitter and/or receiver components can be provided in various forms. In one arrangement the outer surface of the tube is adapted for mounting electronic boards comprising the transmitter and/or receiver components.
- the apparatus of certain embodiments of the present invention may be provided with transmitter and/or receiver components to form a base station of a wireless communications network, for example, a mobile phone network.
- a wireless communications network for example, a mobile phone network.
- Figure 1 shows an exploded view of a wireless base station according to an embodiment of the invention
- Figure 2 shows a top view illustrating the cross-section of a central triangular aluminium tube of the wireless base station of Figure 1 with electronic boards mounted thereon;
- Figure 3 shows a side cross-section view of the wireless base station of Figure 1 illustrating convection cooling through a cooling chimney defined by the central triangular aluminium tube of Figure 2;
- Figure 4 shows a perspective view of the fully constructed wireless base station of
- Figure 5 shows the wireless base station mounted to a post.
- Certain embodiments of the invention provide multiple-sector multiple-radio base stations with embedded antennas. These embodiments can be used as micro or pico base stations deployed outdoors in high density to provide broadband wireless access.
- the mechanical design of one such wireless base station consists of the following three elements: a central aluminium chimney; a plastic radome disposed around the central aluminium chimney with a handle; and a bottom plate for mounting the chimney in the radome.
- Figure 1 shows an exploded view of such a wireless base station.
- This design centers around an aluminium chimney (1), which acts simultaneously as the structural backbone, a radio frequency insulator among sectors, a heat sink for electronic components, and a chimney for self convection.
- the external enclosure, or radome (2) is integrated with a handle doubled as a rain/dust cover for the ventilation holes.
- the plastic radome is transparent to radio waves so that the embedded antennas can function properly.
- the bottom plate (3) provides an interface to a mounting unit (shown in Figure 5) and weather proof external connectors (4) for power and data. It is also the mechanical foundation for securing the aluminium chimney (1) and the radome (2). Cool air is flown inside the chimney through the bottom plate (3).
- the bottom plate (3) is a single injection moulded part made of glass-reinforced PA66. With the aluminium chimney (1), it forms the rigid backbone of the base station.
- the bottom plate (3) has a cylindrical interface for mounting to a cylindrical fastening element of a mounting unit (showing in Figure 5).
- the cylindrical interface also doubles as an inlet channel for cool air. Cable entry areas are located on the bottom of the bottom plate (3) and provide fastening points for the cable glands.
- Two cable hatches (4) (one for power, one for data connectors) provide weather protection for the areas of cable entry to an ingress protection rating of 67 (IP 67).
- the two cable hatches (4) also provide strain relief to the cables. Cable glands are integrated with flexible drop stopper arms and captive screws to avoid accidental fall of parts.
- a top gasket (5a) is provided between the aluminium chimney (1) and the radome (2).
- a bottom gasket (5b) is provided between aluminium chimney (1) and the bottom plate (3).
- a partition gasket (5c) is provided between the radome (2) and bottom plate (3).
- Electronic boards (6a, 6b, 6c) are mounted on outer faces of the triangular aluminium chimney.
- the gaskets serve to seal the electronics area within an enclosure between the outer surface of the aluminium chimney (1) and the inner surface of the radome (2) to an ingress protection rating of 67.
- the top and bottom gaskets (5a, 5b) can be stamped out of a sheet of elastic material.
- the partition gasket (5c) may be an injection moulded elastomer.
- the core of the wireless base station is provided by the triangular cross-sectioned aluminium chimney (1) which is shown in more detail in Figure 2.
- the chimney (1) has multiple functions: it forms the rigid chassis of the apparatus onto which electronics are fixed; and it defines a cooling chimney though which air can flow.
- a cross-bracing structure (7) in the middle of the triangular profile adds additional heat sink capability to the chimney by increasing surface area.
- the cross-bracing structure (7) also serves to strengthen the apparatus.
- Electronic boards (6a, 6b, 6c) are mounted on outer faces of the triangular aluminium chimney.
- Recesses (8) may be provided in the outer surface of the chimney for receiving electronic components (9) therein.
- the recesses (8) allow mounting of electronic components (9) that have a building height beyond a few millimetres. This enables integration of an AC/DC power supply and external interface circuits m a compact arrangement.
- the triangular, closed shape of the aluminium chimney (1) provides isolation and RF- shielding between antenna sectors. With the top and bottom gaskets (5a, 5b), the aluminium chimney (1) separates the IP-protected area and the open cooling area within.
- the triangular shape that hides the antennas from each other delivers about 4OdB isolation in between the sectors.
- the outer surface of the radome (2) is illustrated in Figure 4 showing the ventilation holes (10) and handle (14).
- the radome may be formed as a single injection moulded PC/ABS part. With the chimney and the gaskets it protects the electronics and allows the heated air to flow outside the apparatus.
- the radome provides RF-transparency to the embedded antennas.
- the integrated handle (14) is disposed over the ventilation holes (10) to protect against ingress of rain and debris. This structure allows easy handling and installation of the apparatus, while also providing a protected thermal exit.
- Figure 5 shows the wireless base station mounted to a post (15) by a mounting unit (16).
- the mounting urrit (16) provides the means to install the wireless base station to vertical, horizontal or slanted poles (such as lamp posts) or onto a wall.
- the mounting unit (16) has a swivel mechanism to provide tilt adjustment of 90 degrees.
- the wireless base station is designed such that assembly is efficient and fast, following top to bottom logic. The steps involved in assembly are as follows:
- the bottom gasket is placed in its position into the bottom plate and secured with adhesive
- top gasket is placed in its position inside the top of the radoine and secured with adhesive;
- the aluminium chimney is secured to the bottom plate with self-tapping screws;
- the chimney equipped with electronics boards, is slid inside the radome and secured to it with screws through the bottom plate;
- the wireless base station can be installed by one person only, in less than half an hours time.
- the typical installation of the base station involves the following steps:
- the base station is generally mounted in an upright position.
- the base station After performing the aforementioned installation steps the base station is ready to be powered up.
- Embodiments provide a small multi-sector base station design with embedded antenna without sacrificing high performance as all the benefits of multiple-sector design such as frequency re-use, noise reduction, and radio energy focusing are retained. Excellent heat dissipation is provided purely by self convection. No fans are required and there is no need for environmentally controlled site cabinets. Embodiments are cheap to manufacture and assemble.
- the aluminium profile can be formed by extrusion and then cut to a desired length. No post-processing is needed. Self threading screw holes, alignment rails and heat sink are all designed into the profile.
- the radome with integral handle and bottom plate can both be single-shot injection moulded parts well suited for mass production. Sectors may be symmetrical which enables per sector sub-assembly of antenna and radio.
- Installation is simple due to the light weight of the apparatus and single hand operation via the built-in handle. No external antennas are required and few or no cables and connectors are required to be attached at mounting height. Little or no node orientation is needed.
- the unit may be easily mounted on any vertical or horizontal pole or attached to a wall. The final assembly of the whole unit should not take one person more than 15 minutes of labour.
- the base station may be used as a node in any broadband radio technology. Examples include WLAN, WiMAX, and 2G/3G/nG cellular base stations. Embodiments can significantly reduce the size and cost of multi-sector base station.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09738156A EP2389710B1 (en) | 2008-05-02 | 2009-04-28 | An enclosure and mounting assembly for an antenna |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08155601A EP2113963A1 (en) | 2008-05-02 | 2008-05-02 | An enclosure and mounting assembly for an antenna |
PCT/EP2009/055143 WO2009133112A1 (en) | 2008-05-02 | 2009-04-28 | An enclosure and mounting assembly for an antenna |
EP09738156A EP2389710B1 (en) | 2008-05-02 | 2009-04-28 | An enclosure and mounting assembly for an antenna |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2389710A1 true EP2389710A1 (en) | 2011-11-30 |
EP2389710B1 EP2389710B1 (en) | 2012-08-01 |
Family
ID=39710838
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08155601A Withdrawn EP2113963A1 (en) | 2008-05-02 | 2008-05-02 | An enclosure and mounting assembly for an antenna |
EP09738156A Active EP2389710B1 (en) | 2008-05-02 | 2009-04-28 | An enclosure and mounting assembly for an antenna |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08155601A Withdrawn EP2113963A1 (en) | 2008-05-02 | 2008-05-02 | An enclosure and mounting assembly for an antenna |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP2113963A1 (en) |
ES (1) | ES2392353T3 (en) |
WO (1) | WO2009133112A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2884676A4 (en) * | 2012-08-07 | 2016-02-24 | Kmw Inc | Small base station for mobile communication system |
EP3014964A4 (en) * | 2013-06-28 | 2017-02-22 | CommScope Technologies LLC | Rrh concealment module/methods in natural convection |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013026204A1 (en) * | 2011-08-25 | 2013-02-28 | Huawei Technologies Co., Ltd. | Antenna assembly |
KR101769524B1 (en) * | 2012-11-16 | 2017-08-21 | 주식회사 케이엠더블유 | Small-sized base station device in mobile communication system |
CN104032932B (en) * | 2013-03-05 | 2016-05-18 | 四川汇源信息技术有限公司 | The sky line style air-out apparatus of efficient dustproof |
US9433034B2 (en) | 2013-08-16 | 2016-08-30 | Commscope Technologies Llc | Modular small cell architecture |
EP3560030B1 (en) | 2016-12-22 | 2022-03-30 | Signify Holding B.V. | Mast, lighting device, and street light pole |
WO2023085988A1 (en) * | 2021-11-15 | 2023-05-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Cooling module assembly for pole-mounted network node |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE503948C2 (en) * | 1993-12-15 | 1996-10-07 | Mafi Ab | Mast |
GB2289827B (en) * | 1994-05-17 | 1998-05-20 | Motorola Ltd | Integrated mast base station |
JP3661766B2 (en) * | 2000-06-22 | 2005-06-22 | 日本電気株式会社 | Mounting structure of communication equipment |
US7043280B1 (en) * | 2001-10-11 | 2006-05-09 | Adaptix, Inc. | Mechanically rotatable wireless RF data transmission subscriber station with multi-beam antenna |
DE102005063234B4 (en) * | 2005-12-19 | 2007-08-30 | Fuß, Torsten, Dr.-Ing. | Support structure for the construction of antenna masts and the like |
-
2008
- 2008-05-02 EP EP08155601A patent/EP2113963A1/en not_active Withdrawn
-
2009
- 2009-04-28 EP EP09738156A patent/EP2389710B1/en active Active
- 2009-04-28 WO PCT/EP2009/055143 patent/WO2009133112A1/en active Application Filing
- 2009-04-28 ES ES09738156T patent/ES2392353T3/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2009133112A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2884676A4 (en) * | 2012-08-07 | 2016-02-24 | Kmw Inc | Small base station for mobile communication system |
KR101868869B1 (en) * | 2012-08-07 | 2018-06-19 | 주식회사 케이엠더블유 | Compact-type base station for mobile communication system |
EP3014964A4 (en) * | 2013-06-28 | 2017-02-22 | CommScope Technologies LLC | Rrh concealment module/methods in natural convection |
Also Published As
Publication number | Publication date |
---|---|
EP2113963A1 (en) | 2009-11-04 |
EP2389710B1 (en) | 2012-08-01 |
WO2009133112A1 (en) | 2009-11-05 |
ES2392353T3 (en) | 2012-12-10 |
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