EP2884581B1 - Boîtier de système d'antenne et de radôme - Google Patents

Boîtier de système d'antenne et de radôme Download PDF

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Publication number
EP2884581B1
EP2884581B1 EP13306694.4A EP13306694A EP2884581B1 EP 2884581 B1 EP2884581 B1 EP 2884581B1 EP 13306694 A EP13306694 A EP 13306694A EP 2884581 B1 EP2884581 B1 EP 2884581B1
Authority
EP
European Patent Office
Prior art keywords
radome
side opening
connector
antenna
connectors
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
EP13306694.4A
Other languages
German (de)
English (en)
Other versions
EP2884581A1 (fr
Inventor
Thomas Julien
Patrick Lecam
Jean-Pierre Harel
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.)
Nokia Shanghai Bell Co Ltd
Original Assignee
Alcatel Lucent Shanghai Bell 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 Alcatel Lucent Shanghai Bell Co Ltd filed Critical Alcatel Lucent Shanghai Bell Co Ltd
Priority to EP13306694.4A priority Critical patent/EP2884581B1/fr
Publication of EP2884581A1 publication Critical patent/EP2884581A1/fr
Application granted granted Critical
Publication of EP2884581B1 publication Critical patent/EP2884581B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome

Definitions

  • the present invention relates to the technical field of radomes and antenna systems housing.
  • radome is meant the box-like structure transparent to radio-frequency radiation, used to house/enclose an antenna.
  • a radome may be further configured to enclose an antenna system including more than one antenna element (such as, multi-band antenna systems). For instance, a same radome may be intended to enclose a plurality of ground-based antenna elements of a communication base station.
  • Such radomes are for example disclosed by documents US2008/169996 A1 ; US2005/030250 A1 , US2005/168385 A1 and JP2012 080511 A .
  • Various embodiments relate to an apparatus comprising and antenna and a radome enclosing the antenna, as set out in independent claim 1.
  • the antenna is provided with a connector
  • the radome comprises a side opening provided in a side wall of the radome, this side opening giving access to the connector, this connector being located inside the radome.
  • the connector is located in front of the side opening.
  • the side opening is provided in the form of pre-cut shape formed in the side wall of the radome.
  • the above radome further comprises a cover for covering the side opening.
  • the electrical property of the cover is sensibly the same as that of the radome.
  • the cover includes a pre-cut hole intended for leading a cable to be connected to the connector.
  • a radome 1 including a side opening 2 located in the side wall of the radome 1 (i.e. in a lateral wall of the radome 1 ).
  • the radome 1 may be of any structure suitable for housing/enclosing an antenna system.
  • the radome 1 may have a rounded rectangular cross section, a circular/semicircular cross section, an ovoid/semi-avoid cross section, or any combination of them.
  • the side opening 2 serves as an aperture to permit a cable to be connected to an antenna connector 3 located inside the radome 1.
  • the side opening 2 may be of any suitable shape (for instance, rectangular, circular, elliptical) and size suitable for passing at least a cable (e.g. a coaxial cable) therethrough.
  • the side opening 2 may be formed in the radome 1 afterwards by appropriate and well-known machining methods. Alternatively, the side opening 2 may be planned during the radome production.
  • the side openings 2 are provided in the form of pre-cut shape (i.e. a perforate outline of the side opening 2 ) formed in the side wall of the radome 1.
  • the side opening 2 gives access to antenna connectors 3 located inside the radome 1.
  • this side opening 2 is intended for passing therethrough a cable to be connected to at least an antenna connector 3 located inside the radome.
  • the antenna connectors 3 are placed/located in counter-relief and not in projection (overhanging) with respect to the side wall of the radome.
  • the antennas connectors 3 are inside the global shape of the radome 1 and neither the side opening 2 nor the antenna connectors 3 does extend beyond the outer surface of the radome 1 (i.e. nothing does exceed the global dimensions of the radome 1 ).
  • the side opening 2 may be at different high of the lateral wall of the radome 1.
  • this side opening 2 is located in the side wall of the radome 1 so that it is close to at least an enclosed antenna element in order to give access to the connector 3 of this enclosed antenna element.
  • a subset of connectors 3 of enclosed antenna elements is mounted on a connector support 4.
  • the connector support 4 is set facing to (i.e. in front of) the side opening 2 so that this side opening gives access to connectors mounted on this connector support 4.
  • another subset of connectors is placed at the bottom of the radome.
  • At least a subset of connectors 3 of the enclosed antenna system are placed inside the structure of the radome 1, offsetted from the radome bottom (i.e. shifted by an offset from the bottom of the radome), and accessible through a side opening 2 formed in the side wall of the radome 1.
  • the side opening 2 is formed in the side wall opposite to the enclosed antennas orientation (namely, behind the antenna system).
  • the connector support 4 is fixed to the antenna system 5. At least a connector (such as, type “N” connectors, “7/16" connectors) is mounted on the connector support 4.
  • the connector support 4 is a plate arranged so that facilitating the accessibility and connectivity of connectors 3 mounted thereon from the side opening 2.
  • the connector support 4 is configured so that when the connectors 3 are mounted thereon, the side opening 2 gives directly onto these connectors. It results in that the mounted connectors 3 are easily reachable from the side opening 2.
  • the connector support 4 comprises a part arranged in a sensibly stair-step shape. Each step in this stair-step shape may receive at least a connector.
  • the connector support 4 comprises a folded aluminum plate, or any other soldered/folded metal plate in a sensibly stair-step shape.
  • the connector support 4 is fixed inside the radome so that the stair-step shape is oblique (i.e. slantwise) with respect to the plane of the side opening 2 (see figure 2 ).
  • the connector support 4 is fixed to the inner surface of the radome 1.
  • a cover 32 for the side opening with convenient mounting means (for instance, with a sealing assembly) is provided so as to protect the connectors.
  • a cover 32 (i.e. a protection, a covering shell) is placed on top for covering the side opening. This cover hides connectors from potential damage.
  • the cover 32 is of the same material as that of the radome 31 (i.e. having the same or similar electrical property). More generally, the electrical property of the cover 32 is sensibly the same as that of the radome 31.
  • pre-cut holes 33 are provided in the cover 32. These pre-cut holes 33 are intended to be, if needed, removed and leading cables 34 to the connectors located in front of the side opening. In one embodiment, the pre-cut holes 33 are of O-shaped. Alternatively, these pre-cut holes 33 are U-shaped, or semi-circular shaped and performed on the outline of the cover 32.
  • more than one dedicated side opening are formed in the side wall of the radome (for instance, side openings 2 and 11 in figure 1 ).
  • the radome reduces input cable 6 lengths of the antenna system 5 (see figure 1 ).
  • the side opening and the antenna element(s) that its/their connector(s) is/are to be received in the side opening may be located close to each other. It results in that the length of the attachment means 6 of the connector to the antenna element is reduced.
  • no bending and/or extra length of the attachment means imply
  • the housing/enclosing operation (also said, radoming operation) is no more complicated than housing a standard antenna.
  • both the assembling process and the obtained assembly i.e. radome plus antenna systems
  • providing a plurality of connectors are simplified.
  • the side opening does not substantially change the electrical property of the radome as it is located behind the antennas (i.e. outside radiation directions of the antenna).
  • the radome allows an easy management and implementation of a plurality of connectors.
  • the arrangement of the connector support (stair-step shape fixed obliquely with respect to the side opening plane) inside the radome provides enough clearance allowing easy cable installation, easy/accessible connectivity, and easy sealing (see figures 1 and 2 ).
  • the radome including a plurality of side openings in pre-cut shape permits to purchase an antenna system with more connectors than required at the beginning, and then remove the pre-cut shape/profile of a side opening so as to upgrade the antenna system. For instance, one can first use an antenna as a triple band, and then be able to upgrade this antenna to a hexa-band antenna by just removing the pre-cut side opening and connect the additional connectors located in front of this side opening.
  • this allows anticipating the evolution of the network coverage easily and with few financial impacts.
  • provided pre-cut holes in the cover permit to easily add and lead cables intended to be connected to connectors mounted in front of the side opening (see figure 3 ).
  • the radome may be used for enclosing different antenna systems (i.e. such as "tri-band”, “quad-band”, “penta-band” or “hexa-band” antennas), regardless of the number of connectors.
  • different antenna systems i.e. such as "tri-band”, “quad-band”, “penta-band” or “hexa-band” antennas.
  • this represents a very important cost and development time reduction.
  • the packaging of the radome is simplified (see figure 4 ) as there is no connector or covering blister which extend beyond the outer shape of the radome.
  • the external shape of the radome is unchanged, while supporting a plurality of antenna connectors. It results in that, advantageously, no wind loading is induced.
  • the number of the enclosed antenna may be increased without increasing the wind loading of the radome. Therefore, no additional stiffening of the masts to prevent differential movement of the antenna is needed.
  • the arrangement of connectors inside the radome allows the radome to support the environment wind loads.
  • the covering shell placed at the end of the installation (after cable to connecter attachment and sealing) has insignificant impact on wind load.
  • the radome withstands wind pressures, rain, snow and ice, as there is no overhanging part in the radome (the connectors being inside the radome). It results in that advantageously, the radome supports a plurality of antennas while best satisfying environmental requirements.
  • RRH Remote Radio Head
  • the structural design of the radome satisfy load requirements, and avoid differential movements of the antenna due to the wind which may cause significant shift of equi-signal paths, or even worse the collapse of the radome itself.
  • the radome is a low wind-loading radome while being able to enclose a plurality of antennas. Accordingly, the radome may be used in areas where wind with high velocities is likely to be encountered.
  • the radome meets the development of multiband antennas where a plurality of sub-antennas operating in different frequency bands has to cohabit together in a common box kit.
  • the radome provides enough space, in addition to the available space at the bottom of the radome, for placing a plurality of connectors with the required clearance around the connectors.
  • this allows quick cable to connector attachment and detachment, properly tightening of cables to connects, and easy physical access to connectors.
  • the radome may enclose an antennas structure involving a plurality of connectors.
  • an "antenna" structure may include 12 antenna arrays (6 ports +45° and 6 ports -45°) within different frequency bands. All these arrays require at least dedicated connector (some arrays are even eventually connected to duplexers or triplexers which can multiply again the number of connections).

Landscapes

  • Details Of Aerials (AREA)

Claims (7)

  1. Appareil comprenant :
    une antenne comprenant un connecteur (3),
    un radôme (1) entourant l'antenne, et comprenant une ouverture latérale (2) prévue dans une paroi latérale du radôme (1), ladite ouverture latérale (2) servant d'ouverture pour permettre la connexion d'un câble audit connecteur (3), ledit connecteur (3) étant situé dans le radôme (1),
    caractérisé en ce que l'antenne comprend en outre un support de connecteur (4) sur lequel ledit connecteur (3) est monté, ledit support de connecteur (4) comprenant une partie agencée dans une forme sensiblement en escalier, une marche de cette forme en escalier étant configurée pour recevoir au moins ledit connecteur (3), ladite partie agencée dans une forme sensiblement en escalier étant fixée dans le radôme en biais par rapport au plan de l'ouverture latérale (2).
  2. Appareil selon la revendication 1, dans lequel le connecteur est situé devant l'ouverture latérale (2).
  3. Appareil selon l'une quelconque des revendications 1 et 2, dans lequel l'ouverture latérale (2) est prévue sous la forme d'une forme prédécoupée formée dans la paroi latérale du radôme (1).
  4. Appareil selon l'une quelconque des revendications précédentes, comprenant en outre un couvercle (32) pour couvrir l'ouverture latérale.
  5. Appareil selon la revendication 4, dans lequel la propriété électrique du couvercle (32) est sensiblement la même que celle du radôme (31).
  6. Appareil selon la revendication 4 ou 5, dans lequel le couvercle (32) comporte un trou prédécoupé (33) destiné à guider un câble (34) à connecter au connecteur.
  7. Appareil selon l'une quelconque des revendications 1 à 6, comprenant en outre une tête radio distante.
EP13306694.4A 2013-12-10 2013-12-10 Boîtier de système d'antenne et de radôme Active EP2884581B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13306694.4A EP2884581B1 (fr) 2013-12-10 2013-12-10 Boîtier de système d'antenne et de radôme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13306694.4A EP2884581B1 (fr) 2013-12-10 2013-12-10 Boîtier de système d'antenne et de radôme

Publications (2)

Publication Number Publication Date
EP2884581A1 EP2884581A1 (fr) 2015-06-17
EP2884581B1 true EP2884581B1 (fr) 2019-10-16

Family

ID=49886802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13306694.4A Active EP2884581B1 (fr) 2013-12-10 2013-12-10 Boîtier de système d'antenne et de radôme

Country Status (1)

Country Link
EP (1) EP2884581B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114916099A (zh) * 2017-06-15 2022-08-16 康普技术有限责任公司 具有带成角度的连接器端口的底端盖的基站天线
EP3419106A1 (fr) * 2017-06-21 2018-12-26 Alcatel-Lucent Shanghai Bell Co., Ltd. Antenne à radio-fréquence et arrangement de connecteurs correspondant

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5606732A (en) * 1994-04-26 1997-02-25 Rockwell International Corporation Direct connect radio and antenna assembly
US6348894B1 (en) * 2000-05-10 2002-02-19 Nokia Mobile Phones Ltd. Radio frequency antenna
WO2005013418A1 (fr) * 2003-08-01 2005-02-10 Sanyo Electric Co., Ltd. Antenne a plaque
US6940469B2 (en) * 2003-08-06 2005-09-06 Kathrein-Werke Kg Antenna arrangement
US7036734B2 (en) * 2004-02-04 2006-05-02 Venture Research Inc. Free standing column-shaped structure for housing RFID antennas and readers
JP2006096079A (ja) * 2004-09-28 2006-04-13 Denso Corp 車両アンテナの着脱構造
TWM318201U (en) * 2007-01-17 2007-09-01 Smart Ant Telecom Co Ltd Waterproof enclosure
WO2010070905A1 (fr) * 2008-12-16 2010-06-24 株式会社フジクラ Connecteur de câble et composant d'antenne
JP5299402B2 (ja) * 2010-10-28 2013-09-25 三菱電機株式会社 アンテナ装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
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