EP0980111A1 - Antennenvorrichtung einer Basisstation für ein mobiles Kommunikationsnetz - Google Patents

Antennenvorrichtung einer Basisstation für ein mobiles Kommunikationsnetz Download PDF

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Publication number
EP0980111A1
EP0980111A1 EP98201691A EP98201691A EP0980111A1 EP 0980111 A1 EP0980111 A1 EP 0980111A1 EP 98201691 A EP98201691 A EP 98201691A EP 98201691 A EP98201691 A EP 98201691A EP 0980111 A1 EP0980111 A1 EP 0980111A1
Authority
EP
European Patent Office
Prior art keywords
antenna
phased
antenna device
array
housing
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.)
Withdrawn
Application number
EP98201691A
Other languages
English (en)
French (fr)
Inventor
Robert Van Muijen
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.)
LIBERTEL NETWERK B.V.
Original Assignee
Libertel NV
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 Libertel NV filed Critical Libertel NV
Priority to EP98201691A priority Critical patent/EP0980111A1/de
Publication of EP0980111A1 publication Critical patent/EP0980111A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • H01Q1/1242—Rigid masts specially adapted for supporting an aerial
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path

Definitions

  • This invention relates to an antenna device for a base station of a mobile telecommunication network, comprising at least two dual-polar phased-array antennas, the longitudinal direction of each phased-array antenna being directed at least substantially vertically.
  • Such an antenna device is known per se and is utilized inter alia in the GSM telecommunication network.
  • the known antenna device is often positioned on the roof of a building to enable coverage of the surroundings around the building.
  • the antenna device comprises three phased-array antennas which are arranged at an angle of 120° relative to each other.
  • Such a known, integrated high-gain cross-polarization antenna has, as such, good technical properties.
  • a disadvantage of the known antenna device is that it is often experienced as visually unattractive. This makes it less and less easily acceptable that such an antenna device is positioned on top of a building.
  • the antenna device becomes visually unattractive in that the individual phased-array antennas must be directed upwards at an angle of about 6° with respect to the vertical.
  • the angle which the longitudinal direction of a phased-array antenna makes with that vertical for a net zero degree elevation then corresponds to the angle which the antenna beam of the phased-array antenna makes with this antenna.
  • the object of the invention is to provide a solution to the problem outlined.
  • the antenna device according to the invention is accordingly characterized in that the at least two phased-array antennas are jointly accommodated in a tubular housing, the longitudinal direction of the housing being directed at least substantially vertically.
  • phased-array antennas are jointly accommodated in a single tubular housing, the visual appearance of the antenna is experienced as particularly attractive.
  • the antenna has the appearance of a slender mast and is therefore hardly noticeable.
  • the housing functions as a radome.
  • An additional advantage of the housing is that the phased-array antennas are protected from weather influences.
  • each phased-array antenna comprises a number of antenna elements arranged relative to each other in vertical direction.
  • the antenna device comprises at least one antenna beam forming unit which is electrically connected to the antenna elements of at least one of the phased-array antennas for processing in combination transmitted and/or received signals of the antenna elements, so that an antenna beam is formed when the phased-array antenna in question is used as a transmitting and/or receiving antenna, respectively.
  • the antenna beam forming unit includes means for electrically setting the elevation of the antenna beam. It is therefore not necessary, as in the known device, to mechanically set the longitudinal direction of the antenna array relative to the vertical for setting the elevation of the antenna beam. Instead, the vertical direction mentioned can be maintained unaltered.
  • the elevation of the antenna beam is set in that, using the antenna beam forming unit, the phase relation of the above-mentioned transmitted and/or received signals relative to each other is regulated in a manner known per se.
  • the antenna beam forming unit is accommodated in the housing and can be remotely controlled for the purpose of setting the angle of elevation of the phased-array antennas in question.
  • reference numeral 1 designates an antenna device for a base station of a mobile telecommunication network.
  • the mobile telecommunication network can consist, for instance, of a GSM network, known per se.
  • the antenna device comprises three phased-array antennas 2.1, 2.2, 2.3.
  • each phased-array antenna comprises a rectangular platelike support 4. The longitudinal direction of the platelike support 4, in use, is directed vertically. Mounted on the platelike support 4 are a number of antenna elements 6 arranged relative to each other in vertical direction. The antenna elements 6 are designed as dipole elements, known per se. Further, on opposite sides of the dipole elements, reflector plates 8 are arranged. In this example, therefore, each phased-array antenna is built up from a support 4, dipole elements 6 and reflector plates 8.
  • the three phased-array antennas 2.1, 2.2 and 2.3 are arranged at an angle ⁇ of 120° relative to each other in the horizontal plane.
  • the three phased-array antennas are jointly accommodated in a tubular housing 10.
  • the longitudinal direction of the housing 10, in use, is directed at least substantially vertically.
  • the housing 10 constitutes a radome for the three phased-array antennas and to that end is manufactured from a material which is known to be usable for a radome.
  • the tubular housing has a circular cross section, as can be seen in Fig. 3. Accordingly, the tubular housing is in the form of a cylinder.
  • each of the phased-array antennas 2.1, 2.2, and 2.3 is positioned on a mast 12.
  • the mast 12 is also accommodated in the housing 10.
  • a linear array antenna which is vertically arranged has the property that it has an antenna beam which is relatively narrow in vertical direction and relatively wide in horizontal direction.
  • the received signals of each of the antenna elements of a phased-array antenna 2.i are applied via lines 13 to an antenna beam forming unit 14.i.
  • the antenna beam forming unit 14.i is known per se and will therefore not be elucidated in detail here. It is noted, however, that the received signals of the antenna elements 6 are processed in combination for obtaining the antenna pattern when the phased-array antenna is used as receiving antenna. To that end, the antenna beam forming unit 14.i comprises delay lines to combine the received signals with appropriate delays. In this example, the antenna beam forming unit is also suited to supply transmitting signals to the various antenna elements of the phased-array antenna 2.i. The mutual phase differences of the various signals that are supplied to the antenna elements are such that the antenna pattern has a desired elevation. This aspect of the antenna beam forming unit is also known per se and can be realized using delay lines and will therefore not be further explained. The antenna beam forming unit further comprises means for electrically setting and varying the elevation of the antenna beam. This can be realized by setting and varying the delay lines accordingly.
  • the longitudinal direction of a vertical cross section of the antenna beam can be directed horizontally. It is also possible that the antenna beam, using the beam forming unit, is set such that the longitudinal direction of the vertical cross section of the antenna pattern is directed slightly obliquely downwards, thereby including an angle ⁇ with the horizontal.
  • the angle ⁇ can have a value of, for instance, about 6°.
  • the antenna beam instead of being directed downwards, as shown in Fig. 4b, is directed upwards.
  • the antenna beam forming unit includes means for remotely setting the elevation of the antenna beam. To that end, the antenna beam forming unit can be remotely controlled both via a wireless connection and via a wire connection.
  • the antenna beam forming unit 14.i is accommodated in the housing 10.
  • Fig. 4c shows a horizontal cross section 18.i of the antenna beam 16.i of the phased-array antennas 2.i.
  • each antenna pattern has a horizontal 3dB beam width greater than 65°. The consequence is that the entire surroundings are covered by the antenna device.
  • each phased-array antenna 2.i is electrically coupled to an associated beam forming unit 14.i.
  • the elevations of the antenna beams of the various phased-array antennas can therefore be set independently of each other.
  • the mast 12 can also be formed by the housing 10 itself.
  • the mast 12 in Fig. 2 can then be omitted.
  • the antenna device it is possible for the antenna device not to have a mast at all. This situation is shown in Fig. 5.
  • the antenna device is positioned on a construction 18.
  • the construction 18 can, for instance, be a part of a building.
EP98201691A 1998-05-20 1998-05-20 Antennenvorrichtung einer Basisstation für ein mobiles Kommunikationsnetz Withdrawn EP0980111A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98201691A EP0980111A1 (de) 1998-05-20 1998-05-20 Antennenvorrichtung einer Basisstation für ein mobiles Kommunikationsnetz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98201691A EP0980111A1 (de) 1998-05-20 1998-05-20 Antennenvorrichtung einer Basisstation für ein mobiles Kommunikationsnetz

Publications (1)

Publication Number Publication Date
EP0980111A1 true EP0980111A1 (de) 2000-02-16

Family

ID=8233746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98201691A Withdrawn EP0980111A1 (de) 1998-05-20 1998-05-20 Antennenvorrichtung einer Basisstation für ein mobiles Kommunikationsnetz

Country Status (1)

Country Link
EP (1) EP0980111A1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001001582A2 (en) * 1999-04-29 2001-01-04 Telefonaktiebolaget Lm Ericsson (Publ) Integrated adaptive phased arrays and sector antennas
EP1343220A1 (de) * 2002-03-05 2003-09-10 Lisitano, Alexandro Rohrförmiger Dachaufbau zur Aufnahme von Antennen und technischen Komponenten
WO2005122324A1 (de) * 2004-06-14 2005-12-22 Alexandro Lisitano Modulare antennenanlage
EP1783856A1 (de) * 2005-10-15 2007-05-09 MULTICON GmbH Mobilfunk-Antennenanlage
US7489282B2 (en) 2005-01-21 2009-02-10 Rotani, Inc. Method and apparatus for an antenna module
GB2466585B (en) * 2007-08-31 2012-07-11 Allen Vanguard Corp Radio antenna assembly
US8965276B2 (en) 2007-08-31 2015-02-24 Allen-Vanguard Corporation Radio antenna assembly and apparatus for controlling transmission and reception of RF signals
US9496931B2 (en) 2006-02-28 2016-11-15 Woodbury Wireless, LLC Methods and apparatus for overlapping MIMO physical sectors

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575808A1 (de) * 1992-06-08 1993-12-29 Allen Telecom Group, Inc. Antenne mit einstellbarer Neigung der Strahlungskeule
EP0688040A2 (de) * 1994-06-13 1995-12-20 Nippon Telegraph And Telephone Corporation Gedruckte Antenne mit zwei Strahlrichtungen
WO1996014670A1 (en) * 1994-11-04 1996-05-17 Deltec New Zealand Limited An antenna control system
US5548813A (en) * 1994-03-24 1996-08-20 Ericsson Inc. Phased array cellular base station and associated methods for enhanced power efficiency
JPH08250929A (ja) * 1995-03-07 1996-09-27 Mitsubishi Electric Corp 移動通信基地局用アンテナ
WO1997006576A1 (en) * 1995-08-10 1997-02-20 E-Systems, Inc. Low profile antenna array for land-based, mobile radio frequency communication system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575808A1 (de) * 1992-06-08 1993-12-29 Allen Telecom Group, Inc. Antenne mit einstellbarer Neigung der Strahlungskeule
US5548813A (en) * 1994-03-24 1996-08-20 Ericsson Inc. Phased array cellular base station and associated methods for enhanced power efficiency
EP0688040A2 (de) * 1994-06-13 1995-12-20 Nippon Telegraph And Telephone Corporation Gedruckte Antenne mit zwei Strahlrichtungen
WO1996014670A1 (en) * 1994-11-04 1996-05-17 Deltec New Zealand Limited An antenna control system
JPH08250929A (ja) * 1995-03-07 1996-09-27 Mitsubishi Electric Corp 移動通信基地局用アンテナ
WO1997006576A1 (en) * 1995-08-10 1997-02-20 E-Systems, Inc. Low profile antenna array for land-based, mobile radio frequency communication system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 097, no. 001 31 January 1997 (1997-01-31) *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001001582A2 (en) * 1999-04-29 2001-01-04 Telefonaktiebolaget Lm Ericsson (Publ) Integrated adaptive phased arrays and sector antennas
WO2001001582A3 (en) * 1999-04-29 2001-08-23 Ericsson Telefon Ab L M Integrated adaptive phased arrays and sector antennas
EP1343220A1 (de) * 2002-03-05 2003-09-10 Lisitano, Alexandro Rohrförmiger Dachaufbau zur Aufnahme von Antennen und technischen Komponenten
WO2005122324A1 (de) * 2004-06-14 2005-12-22 Alexandro Lisitano Modulare antennenanlage
US7489282B2 (en) 2005-01-21 2009-02-10 Rotani, Inc. Method and apparatus for an antenna module
EP1783856A1 (de) * 2005-10-15 2007-05-09 MULTICON GmbH Mobilfunk-Antennenanlage
US9525468B2 (en) 2006-02-28 2016-12-20 Woodbury Wireless, LLC Methods and apparatus for overlapping MIMO physical sectors
US9496931B2 (en) 2006-02-28 2016-11-15 Woodbury Wireless, LLC Methods and apparatus for overlapping MIMO physical sectors
US9496930B2 (en) 2006-02-28 2016-11-15 Woodbury Wireless, LLC Methods and apparatus for overlapping MIMO physical sectors
US9503163B2 (en) 2006-02-28 2016-11-22 Woodbury Wireless, LLC Methods and apparatus for overlapping MIMO physical sectors
US9584197B2 (en) 2006-02-28 2017-02-28 Woodbury Wireless, LLC Methods and apparatus for overlapping MIMO physical sectors
US10063297B1 (en) 2006-02-28 2018-08-28 Woodbury Wireless, LLC MIMO methods and systems
US10069548B2 (en) 2006-02-28 2018-09-04 Woodbury Wireless, LLC Methods and apparatus for overlapping MIMO physical sectors
US10211895B2 (en) 2006-02-28 2019-02-19 Woodbury Wireless Llc MIMO methods and systems
US10516451B2 (en) 2006-02-28 2019-12-24 Woodbury Wireless Llc MIMO methods
US11108443B2 (en) 2006-02-28 2021-08-31 Woodbury Wireless, LLC MIMO methods and systems
US8400367B2 (en) 2007-08-31 2013-03-19 Allen-Vanguard Corporation Radio antenna assembly
US8965276B2 (en) 2007-08-31 2015-02-24 Allen-Vanguard Corporation Radio antenna assembly and apparatus for controlling transmission and reception of RF signals
GB2466585B (en) * 2007-08-31 2012-07-11 Allen Vanguard Corp Radio antenna assembly

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