SE9803985D0 - Improvement of polarization isolation in antennas - Google Patents

Improvement of polarization isolation in antennas

Info

Publication number
SE9803985D0
SE9803985D0 SE9803985A SE9803985A SE9803985D0 SE 9803985 D0 SE9803985 D0 SE 9803985D0 SE 9803985 A SE9803985 A SE 9803985A SE 9803985 A SE9803985 A SE 9803985A SE 9803985 D0 SE9803985 D0 SE 9803985D0
Authority
SE
Sweden
Prior art keywords
polarization
columns
patches
antenna
column
Prior art date
Application number
SE9803985A
Other languages
English (en)
Other versions
SE513138C2 (sv
SE9803985L (sv
Inventor
Bjoern Gunnar Johannisson
Bengt Inge Svensson
Christer Bruno Lindqvist
Camilla Ingrid Johansson
Jonas Sven James Sandstedt
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9803985A priority Critical patent/SE513138C2/sv
Publication of SE9803985D0 publication Critical patent/SE9803985D0/sv
Priority to PCT/SE1999/001875 priority patent/WO2000031824A1/en
Priority to DE69938063T priority patent/DE69938063T2/de
Priority to AU64936/99A priority patent/AU6493699A/en
Priority to EP99952877A priority patent/EP1145376B1/en
Priority to US09/441,986 priority patent/US6225950B1/en
Publication of SE9803985L publication Critical patent/SE9803985L/sv
Publication of SE513138C2 publication Critical patent/SE513138C2/sv

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
SE9803985A 1998-11-20 1998-11-20 Förfarande och arrangemang för att öka isoleringen mellan antenner SE513138C2 (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9803985A SE513138C2 (sv) 1998-11-20 1998-11-20 Förfarande och arrangemang för att öka isoleringen mellan antenner
PCT/SE1999/001875 WO2000031824A1 (en) 1998-11-20 1999-10-19 Improvement of polarization isolation in antennas
DE69938063T DE69938063T2 (de) 1998-11-20 1999-10-19 Verbesserung der polarisationstrennung
AU64936/99A AU6493699A (en) 1998-11-20 1999-10-19 Improvement of polarization isolation in antennas
EP99952877A EP1145376B1 (en) 1998-11-20 1999-10-19 Improvement of polarization isolation in antennas
US09/441,986 US6225950B1 (en) 1998-11-20 1999-11-17 Polarization isolation in antennas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9803985A SE513138C2 (sv) 1998-11-20 1998-11-20 Förfarande och arrangemang för att öka isoleringen mellan antenner

Publications (3)

Publication Number Publication Date
SE9803985D0 true SE9803985D0 (sv) 1998-11-20
SE9803985L SE9803985L (sv) 2000-05-21
SE513138C2 SE513138C2 (sv) 2000-07-10

Family

ID=20413362

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9803985A SE513138C2 (sv) 1998-11-20 1998-11-20 Förfarande och arrangemang för att öka isoleringen mellan antenner

Country Status (6)

Country Link
US (1) US6225950B1 (sv)
EP (1) EP1145376B1 (sv)
AU (1) AU6493699A (sv)
DE (1) DE69938063T2 (sv)
SE (1) SE513138C2 (sv)
WO (1) WO2000031824A1 (sv)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6583763B2 (en) 1999-04-26 2003-06-24 Andrew Corporation Antenna structure and installation
US6812905B2 (en) 1999-04-26 2004-11-02 Andrew Corporation Integrated active antenna for multi-carrier applications
US6664932B2 (en) * 2000-01-12 2003-12-16 Emag Technologies, Inc. Multifunction antenna for wireless and telematic applications
DE10196845T1 (de) * 2000-11-01 2003-11-13 Andrew Corp Verteilte Antennensysteme
US6670931B2 (en) * 2001-11-19 2003-12-30 The Boeing Company Antenna having cross polarization improvement using rotated antenna elements
KR20030094467A (ko) * 2002-06-04 2003-12-12 주식회사 케이티프리텔 다이버시티 기능을 갖는 원편파 안테나
KR100598736B1 (ko) * 2003-04-30 2006-07-10 주식회사 엘지텔레콤 소형 트리폴 안테나
CN100464508C (zh) * 2007-02-13 2009-02-25 华为技术有限公司 一种利用基站天线收发信号的方法和基站天线
US20080238797A1 (en) * 2007-03-29 2008-10-02 Rowell Corbett R Horn antenna array systems with log dipole feed systems and methods for use thereof
EP2117078B1 (en) * 2008-05-05 2017-07-05 Nokia Solutions and Networks Oy Patch antenna element array
US10447334B2 (en) 2008-07-09 2019-10-15 Secureall Corporation Methods and systems for comprehensive security-lockdown
US9642089B2 (en) 2008-07-09 2017-05-02 Secureall Corporation Method and system for planar, multi-function, multi-power sourced, long battery life radio communication appliance
US10128893B2 (en) 2008-07-09 2018-11-13 Secureall Corporation Method and system for planar, multi-function, multi-power sourced, long battery life radio communication appliance
US11469789B2 (en) 2008-07-09 2022-10-11 Secureall Corporation Methods and systems for comprehensive security-lockdown
US7973718B2 (en) * 2008-08-28 2011-07-05 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Systems and methods employing coupling elements to increase antenna isolation
US8692730B2 (en) * 2009-03-03 2014-04-08 Hitachi Metals, Ltd. Mobile communication base station antenna
EP2226890A1 (en) * 2009-03-03 2010-09-08 Hitachi Cable, Ltd. Mobile communication base station antenna
US8416142B2 (en) 2009-12-18 2013-04-09 Kathrein-Werke Kg Dual-polarized group antenna
DE102009058846A1 (de) * 2009-12-18 2011-06-22 Kathrein-Werke KG, 83022 Dualpolarisierte Gruppenantenne, insbesondere Mobilfunkantenne
WO2013138791A1 (en) * 2012-03-16 2013-09-19 Secureall Corporation Non-contact electronic door locks having specialized radio frequency beam formation
DE102015005468A1 (de) * 2015-04-29 2016-11-03 Kathrein-Werke Kg Antenne
US10770791B2 (en) * 2018-03-02 2020-09-08 Pc-Tel, Inc. Systems and methods for reducing signal radiation in an unwanted direction
TWI686997B (zh) * 2018-09-27 2020-03-01 啟碁科技股份有限公司 天線系統

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1572273A (en) * 1977-05-31 1980-07-30 Emi Ltd Aerial arrangements
JPH01103006A (ja) * 1987-10-15 1989-04-20 Matsushita Electric Works Ltd 平面アンテナ
US4833482A (en) * 1988-02-24 1989-05-23 Hughes Aircraft Company Circularly polarized microstrip antenna array
FR2636780B1 (fr) * 1988-09-21 1991-02-15 Europ Agence Spatiale Antenne composite a diplexage a polarisation circulaire
US5043738A (en) * 1990-03-15 1991-08-27 Hughes Aircraft Company Plural frequency patch antenna assembly
US5923296A (en) * 1996-09-06 1999-07-13 Raytheon Company Dual polarized microstrip patch antenna array for PCS base stations
SE509448C2 (sv) * 1997-05-07 1999-01-25 Ericsson Telefon Ab L M Dubbelpolariserad antenn samt enkelpolariserat antennelement
US5896107A (en) * 1997-05-27 1999-04-20 Allen Telecom Inc. Dual polarized aperture coupled microstrip patch antenna system
CA2237648A1 (en) * 1997-07-29 1999-01-29 Noel Mcdonald Dual polarisation patch antenna
US5945951A (en) * 1997-09-03 1999-08-31 Andrew Corporation High isolation dual polarized antenna system with microstrip-fed aperture coupled patches

Also Published As

Publication number Publication date
US6225950B1 (en) 2001-05-01
DE69938063T2 (de) 2008-05-21
WO2000031824A1 (en) 2000-06-02
EP1145376A1 (en) 2001-10-17
SE513138C2 (sv) 2000-07-10
DE69938063D1 (de) 2008-03-13
AU6493699A (en) 2000-06-13
SE9803985L (sv) 2000-05-21
EP1145376B1 (en) 2008-01-23

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Legal Events

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