CA2247349A1 - Adaptive array antenna unit - Google Patents

Adaptive array antenna unit

Info

Publication number
CA2247349A1
CA2247349A1 CA002247349A CA2247349A CA2247349A1 CA 2247349 A1 CA2247349 A1 CA 2247349A1 CA 002247349 A CA002247349 A CA 002247349A CA 2247349 A CA2247349 A CA 2247349A CA 2247349 A1 CA2247349 A1 CA 2247349A1
Authority
CA
Canada
Prior art keywords
adaptive array
array antenna
antenna unit
beam width
sector angle
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
Application number
CA002247349A
Other languages
French (fr)
Other versions
CA2247349C (en
Inventor
Taisuke Ihara
Ryo Yamaguchi
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.)
NTT Docomo Inc
Original Assignee
NTT Mobile Communications Networks Inc
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 NTT Mobile Communications Networks Inc filed Critical NTT Mobile Communications Networks Inc
Publication of CA2247349A1 publication Critical patent/CA2247349A1/en
Application granted granted Critical
Publication of CA2247349C publication Critical patent/CA2247349C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • 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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • 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
    • H01Q21/061—Two dimensional planar arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H01Q3/2611—Means for null steering; Adaptive interference nulling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

An adaptive array antenna for use in a base station according to the CDMA mobile communication system. A number of antenna elements greater than the number of elements (a reference number) which would be required when directional antenna elements each having a beam width which is the same as a sector angle are used to provide a service area having a sector angle which is narrower than the element beam width, or a number of antenna elements each having a beam width broader than the sector angle which is less than the reference number may be used to define a service area.
CA 2247349 1997-06-02 1998-06-01 Adaptive array antenna unit Expired - Fee Related CA2247349C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPS.N.9/144221 1997-06-02
JP14422197A JP3332329B2 (en) 1997-06-02 1997-06-02 Adaptive array antenna device
PCT/JP1998/002408 WO1998056069A1 (en) 1997-06-02 1998-06-01 Adaptive array antenna

Publications (2)

Publication Number Publication Date
CA2247349A1 true CA2247349A1 (en) 1998-12-10
CA2247349C CA2247349C (en) 2002-04-09

Family

ID=15357069

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2247349 Expired - Fee Related CA2247349C (en) 1997-06-02 1998-06-01 Adaptive array antenna unit

Country Status (6)

Country Link
EP (1) EP0923155A4 (en)
JP (1) JP3332329B2 (en)
KR (1) KR100306466B1 (en)
CN (1) CN1147025C (en)
CA (1) CA2247349C (en)
WO (1) WO1998056069A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100452536B1 (en) * 2000-10-02 2004-10-12 가부시키가이샤 엔.티.티.도코모 Mobile communication base station equipment
KR20020041699A (en) * 2000-11-28 2002-06-03 이노영 CELLULAR Microstrip patch array antenna
RU2233017C1 (en) 2002-12-02 2004-07-20 Общество с ограниченной ответственностью "Алгоритм" Controlled-pattern antenna assembly and planar directive antenna
CN100463376C (en) * 2002-12-20 2009-02-18 中兴通讯股份有限公司 Full-adaptive intelligent antella receiving device
JP4241440B2 (en) * 2004-03-03 2009-03-18 株式会社日立製作所 Packet scheduling method and wireless communication apparatus
CN104716979B (en) * 2013-12-12 2017-11-21 启碁科技股份有限公司 Wireless electron device and radio transmitting method
US10651568B2 (en) * 2016-07-19 2020-05-12 Quintel Cayman Limited Base station antenna system with enhanced array spacing
US10236966B2 (en) * 2017-01-06 2019-03-19 Skyworks Solutions, Inc. Beamforming of harmonics

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3273144A (en) * 1963-04-02 1966-09-13 Fishbein William Narrow beam antenna system
US3903524A (en) * 1973-05-25 1975-09-02 Hazeltine Corp Antenna system using variable phase pattern synthesis
US5548813A (en) * 1994-03-24 1996-08-20 Ericsson Inc. Phased array cellular base station and associated methods for enhanced power efficiency
JP3540374B2 (en) * 1994-07-20 2004-07-07 Ｋｄｄｉ株式会社 Base station antenna device for mobile communication system
US6006069A (en) * 1994-11-28 1999-12-21 Bosch Telecom Gmbh Point-to-multipoint communications system
JPH0927714A (en) * 1995-07-11 1997-01-28 N T T Ido Tsushinmo Kk Multibeam antenna system
JPH10174160A (en) * 1996-12-13 1998-06-26 N T T Ido Tsushinmo Kk Array antenna

Also Published As

Publication number Publication date
KR20000064538A (en) 2000-11-06
EP0923155A1 (en) 1999-06-16
CN1147025C (en) 2004-04-21
CN1217827A (en) 1999-05-26
CA2247349C (en) 2002-04-09
KR100306466B1 (en) 2001-11-02
WO1998056069A1 (en) 1998-12-10
EP0923155A4 (en) 2000-03-22
JP3332329B2 (en) 2002-10-07
JPH10335918A (en) 1998-12-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150601