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WO2006133609A1 - Réseau d’antennes horizontales intelligent à séparation élevée - Google Patents

Réseau d’antennes horizontales intelligent à séparation élevée Download PDF

Info

Publication number
WO2006133609A1
WO2006133609A1 PCT/CN2005/002284 CN2005002284W WO2006133609A1 WO 2006133609 A1 WO2006133609 A1 WO 2006133609A1 CN 2005002284 W CN2005002284 W CN 2005002284W WO 2006133609 A1 WO2006133609 A1 WO 2006133609A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation
smart antenna
antenna array
metal
shaped directional
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.)
Ceased
Application number
PCT/CN2005/002284
Other languages
English (en)
Chinese (zh)
Inventor
Binlong Bu
Fengzhang Xue
Shuai Xu
Enpeng Liu
Xiaoshi Huang
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.)
Comba Telecom Technology Guangzhou Ltd
Original Assignee
Comba Telecom Technology Guangzhou 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 Comba Telecom Technology Guangzhou Ltd filed Critical Comba Telecom Technology Guangzhou Ltd
Publication of WO2006133609A1 publication Critical patent/WO2006133609A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
    • 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
    • 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
    • H01Q21/062—Two dimensional planar arrays using dipole aerials

Definitions

  • the invention relates to a smart antenna array, in particular to a high isolation plate-shaped directional smart antenna array. ⁇ technical background ⁇
  • the concept of smart antenna was proposed for the needs of mobile communication technology in the late 1980s. It can improve the channel reuse rate and base station coverage of mobile communication systems, and overcome the increasingly serious interference problems such as co-channel and multipath fading. .
  • Smart antennas are currently mainly used for base stations. From the perspective of reception, the base station uses the smart antenna to estimate the direction of arrival (DOA) of the multipath radio wave from the mobile station, and performs spatial filtering to suppress other mobile stations and multipath interference. From the perspective of transmission, the base station uses the smart antenna to downlink beamform the transmitted signal, so that the base station transmit signal can be sent back to the mobile station along the direction of the incoming wave of the mobile station, thereby reducing the transmit power and reducing interference to other mobile stations.
  • DOA direction of arrival
  • the base station uses the smart antenna to downlink beamform the transmitted signal, so that the base station transmit signal can be sent back to the mobile station along the direction of the incoming wave of the mobile station, thereby reducing the transmit power and reducing interference to other mobile stations.
  • the existing array of plate-shaped directional smart antenna arrays is fed in series, and there is no other supporting measures. Therefore, the isolation between adjacent units is only about 15 dB.
  • the base station uses the smart antenna to estimate the direction of arrival of the multipath radio waves from the mobile station, which causes:
  • the zero point is not correct, and the ability to suppress interference is reduced.
  • the object of the present invention is to provide a high isolation plate-shaped directional smart antenna array capable of greatly improving the isolation and maintaining the isolation while maintaining the other characteristics of the planar smart antenna array.
  • the high isolation plate-shaped directional smart antenna array comprises a metal reflector, a radome and a radiation array consisting of a single column comprising a plurality of radiating elements, the radiation array being arranged in the metal reflection
  • the radome is disposed on the metal reflector, wherein the metal reflector has at least two rows of radiation arrays arranged side by side, and the radiation arrays are fed in parallel, and between the adjacent two radiation arrays At least one longitudinal metal strip spaced alongside it is added.
  • the invention has the advantages that: on the one hand, the isolation of the directional plate-shaped smart antenna array can be greatly improved; on the other hand, since the parallel feeding is adopted, the preset downtilt angle can be conveniently realized. Beamforming.
  • Figure 1 is a perspective view of the present invention, in which a part of the radome is removed;
  • FIG. 2 is a schematic diagram of a radiation array, a radiation oscillator, and a feed network of the present invention
  • Figure 3 is a typical pattern of a single radiation array horizontal plane of the present invention.
  • Figure 4 is a typical isolation curve between adjacent radiation arrays of the present invention.
  • Figure 5 is a diagram showing a typical vertical direction of the preset 6 downtilt and upper side lobes suppressed to 18 dB;
  • Figure 6 is a perspective view of a second embodiment of the present invention, in which a part of the radome is removed;
  • FIG. 7 is a schematic diagram of a radiation array, a radiation oscillator, and a feed network according to a second embodiment of the present invention, wherein FIG. 7a is a partial enlarged view of a lower left corner portion of FIG. 7b;
  • Figure 8 is a typical pattern of a single radiation array horizontal plane of the present invention.
  • Figure 9 is a typical isolation curve between adjacent radiation arrays in accordance with a second embodiment of the present invention. ⁇ detailed description ⁇
  • the high isolation plate-shaped directional smart antenna array of the present invention comprises a metal reflector 1, a radome 4, eight radiation arrays 2 and nine metal isolation strips 3, and the radiation array 2 is disposed on the metal reflector.
  • the radome 4 is disposed on the metal reflector 1
  • the nine longitudinal metal barrier strips 3 are respectively placed on the symmetry axis between the adjacent two radiation arrays 2
  • the metal reflectors 1 are arranged side by side.
  • the radiation array 2 should not be less than two, so that parallel feeding can be used between the radiation arrays 2.
  • the radiation array 2 is composed of a single array of eight radiating elements 11 and a cable power dividing network 12. As long as the feed line length of each of the radiating elements 11 is changed, the downtilt angle presetting can be realized; if the power dividing ratio and the feeder length of each of the power splitters 13 are simultaneously adjusted, the downtilt angle presetting and the upper side lobe suppression can be realized.
  • the reference surface of the radiating element of each radiation array is constrained from the metal reflector by a distance of 1/3 to 1/5 wavelength, specifically 1/4. At the wavelength, the radiation array spacing is constrained to 1/2 wavelength at the center.
  • the metal spacer strip 3 is split into two or more segments, and may be a plurality of side by side, and the cross section may be of any shape, including a circle, a triangle, a square or a rectangle.
  • FIG. 6 and FIG. 7 is another embodiment of the present invention.
  • the radiation array 2 is composed of eight printed symmetric vibrators 11 and one microstrip line.
  • Network 12, composed. 8 and 9 respectively show a typical pattern of a single radiation array horizontal plane and a typical isolation curve between adjacent radiation arrays of the present embodiment, which are hereby incorporated by reference.
  • the present invention has the following effects through a series of technical improvements:
  • the isolation of the present invention relative to the existing directional panel smart antenna is improved by 7 ⁇ 8dB, wherein when the array spacing is constrained to 1/2 wavelength, The isolation can reach 23 dB.
  • the invention also has the characteristics of simple and compact structure, easy manufacture and convenient installation and use.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

L’invention concerne un réseau d’antennes horizontales intelligent à séparation élevée. Le réseau d’antennes comprend une plaque réfléchissante métallique, un radôme et des réseaux de rayonnement. Chaque réseau de rayonnement est composé de plusieurs dipôles disposés en une seule rangée. Le réseau de rayonnement est installé sur la plaque réfléchissante métallique couverte par le radôme. Sur la plaque réfléchissante métallique, au moins deux réseaux de rayonnement, alignés parallèlement, sont disposés. Les réseaux de rayonnement sont alimentés en parallèle et au moins une barre de séparation métallique est placée entre les réseaux de rayonnement adjacents. Les barres sont parallèles aux réseaux de rayonnement. Ainsi, comparativement à la technique existante, non seulement l’invention peut-elle grandement améliorer le réseau d’antennes intelligent directionnelles mais aussi permettre que le préréglage de l’inclinaison du faisceau et sa formation soient réalisés plus facilement par une alimentation parallèle.
PCT/CN2005/002284 2005-06-13 2005-12-22 Réseau d’antennes horizontales intelligent à séparation élevée Ceased WO2006133609A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200510035167.2 2005-06-13
CNB2005100351672A CN100341198C (zh) 2005-06-13 2005-06-13 高隔离度板状定向智能天线阵

Publications (1)

Publication Number Publication Date
WO2006133609A1 true WO2006133609A1 (fr) 2006-12-21

Family

ID=35706950

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/002284 Ceased WO2006133609A1 (fr) 2005-06-13 2005-12-22 Réseau d’antennes horizontales intelligent à séparation élevée

Country Status (2)

Country Link
CN (1) CN100341198C (fr)
WO (1) WO2006133609A1 (fr)

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US7573434B2 (en) * 2006-10-09 2009-08-11 Alcatel Lucent Decoupling arrays for radiating elements of an antenna
US7787823B2 (en) 2006-09-15 2010-08-31 Corning Cable Systems Llc Radio-over-fiber (RoF) optical fiber cable system with transponder diversity and RoF wireless picocellular system using same
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US8111998B2 (en) 2007-02-06 2012-02-07 Corning Cable Systems Llc Transponder systems and methods for radio-over-fiber (RoF) wireless picocellular systems
US8175459B2 (en) 2007-10-12 2012-05-08 Corning Cable Systems Llc Hybrid wireless/wired RoF transponder and hybrid RoF communication system using same
US8275265B2 (en) 2010-02-15 2012-09-25 Corning Cable Systems Llc Dynamic cell bonding (DCB) for radio-over-fiber (RoF)-based networks and communication systems and related methods
US8548330B2 (en) 2009-07-31 2013-10-01 Corning Cable Systems Llc Sectorization in distributed antenna systems, and related components and methods
US8644844B2 (en) 2007-12-20 2014-02-04 Corning Mobileaccess Ltd. Extending outdoor location based services and applications into enclosed areas
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US9112611B2 (en) 2009-02-03 2015-08-18 Corning Optical Communications LLC Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof
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US9184843B2 (en) 2011-04-29 2015-11-10 Corning Optical Communications LLC Determining propagation delay of communications in distributed antenna systems, and related components, systems, and methods
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US9325429B2 (en) 2011-02-21 2016-04-26 Corning Optical Communications LLC Providing digital data services as electrical signals and radio-frequency (RF) communications over optical fiber in distributed communications systems, and related components and methods
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US9385810B2 (en) 2013-09-30 2016-07-05 Corning Optical Communications Wireless Ltd Connection mapping in distributed communication systems
US9420542B2 (en) 2014-09-25 2016-08-16 Corning Optical Communications Wireless Ltd System-wide uplink band gain control in a distributed antenna system (DAS), based on per band gain control of remote uplink paths in remote units
US9455784B2 (en) 2012-10-31 2016-09-27 Corning Optical Communications Wireless Ltd Deployable wireless infrastructures and methods of deploying wireless infrastructures
US9525472B2 (en) 2014-07-30 2016-12-20 Corning Incorporated Reducing location-dependent destructive interference in distributed antenna systems (DASS) operating in multiple-input, multiple-output (MIMO) configuration, and related components, systems, and methods
US9525488B2 (en) 2010-05-02 2016-12-20 Corning Optical Communications LLC Digital data services and/or power distribution in optical fiber-based distributed communications systems providing digital data and radio frequency (RF) communications services, and related components and methods
US9531452B2 (en) 2012-11-29 2016-12-27 Corning Optical Communications LLC Hybrid intra-cell / inter-cell remote unit antenna bonding in multiple-input, multiple-output (MIMO) distributed antenna systems (DASs)
US9602210B2 (en) 2014-09-24 2017-03-21 Corning Optical Communications Wireless Ltd Flexible head-end chassis supporting automatic identification and interconnection of radio interface modules and optical interface modules in an optical fiber-based distributed antenna system (DAS)
US9621293B2 (en) 2012-08-07 2017-04-11 Corning Optical Communications Wireless Ltd Distribution of time-division multiplexed (TDM) management services in a distributed antenna system, and related components, systems, and methods
US9647758B2 (en) 2012-11-30 2017-05-09 Corning Optical Communications Wireless Ltd Cabling connectivity monitoring and verification
US9661781B2 (en) 2013-07-31 2017-05-23 Corning Optical Communications Wireless Ltd Remote units for distributed communication systems and related installation methods and apparatuses
US9673904B2 (en) 2009-02-03 2017-06-06 Corning Optical Communications LLC Optical fiber-based distributed antenna systems, components, and related methods for calibration thereof
US9681313B2 (en) 2015-04-15 2017-06-13 Corning Optical Communications Wireless Ltd Optimizing remote antenna unit performance using an alternative data channel
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US9730228B2 (en) 2014-08-29 2017-08-08 Corning Optical Communications Wireless Ltd Individualized gain control of remote uplink band paths in a remote unit in a distributed antenna system (DAS), based on combined uplink power level in the remote unit
US9775123B2 (en) 2014-03-28 2017-09-26 Corning Optical Communications Wireless Ltd. Individualized gain control of uplink paths in remote units in a distributed antenna system (DAS) based on individual remote unit contribution to combined uplink power
US9807700B2 (en) 2015-02-19 2017-10-31 Corning Optical Communications Wireless Ltd Offsetting unwanted downlink interference signals in an uplink path in a distributed antenna system (DAS)
US9948349B2 (en) 2015-07-17 2018-04-17 Corning Optical Communications Wireless Ltd IOT automation and data collection system
US9974074B2 (en) 2013-06-12 2018-05-15 Corning Optical Communications Wireless Ltd Time-division duplexing (TDD) in distributed communications systems, including distributed antenna systems (DASs)
US10096909B2 (en) 2014-11-03 2018-10-09 Corning Optical Communications Wireless Ltd. Multi-band monopole planar antennas configured to facilitate improved radio frequency (RF) isolation in multiple-input multiple-output (MIMO) antenna arrangement
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CN102623782B (zh) * 2012-04-28 2014-03-05 成都泰格微波技术股份有限公司 一种高功率宽频带功分器
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