ES2176809T3 - Reduccion de interferencias entre redes de antenas. - Google Patents

Reduccion de interferencias entre redes de antenas.

Info

Publication number
ES2176809T3
ES2176809T3 ES97951361T ES97951361T ES2176809T3 ES 2176809 T3 ES2176809 T3 ES 2176809T3 ES 97951361 T ES97951361 T ES 97951361T ES 97951361 T ES97951361 T ES 97951361T ES 2176809 T3 ES2176809 T3 ES 2176809T3
Authority
ES
Spain
Prior art keywords
products
length
antennas
divider
amplifier
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.)
Expired - Lifetime
Application number
ES97951361T
Other languages
English (en)
Inventor
Olle Gladh
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of ES2176809T3 publication Critical patent/ES2176809T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01Q1/52—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
    • H01Q1/525—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between emitting and receiving antennas
    • 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
    • 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

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Noise Elimination (AREA)
  • Transceivers (AREA)
  • Optical Communication System (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

ESTA INVENCION SE RELACIONA EN GENERAL CON EL USO DE SISTEMAS DE CONJUNTOS DE ANTENAS UTILIZADOS, P.EJ., EN SISTEMAS DE RADIO MOVIL. LAS SEÑALES DE INTERFERENCIA SE RECIBEN DESDE LOS CONJUNTOS DE ANTENAS ADYACENTES. ESTO DA COMO RESULTADO PRODUCTOS DE INTERMODULACION ("IM") QUE INTERFIEREN EN LA TRANSMISION DE LAS SEÑALES DESEADAS. PUESTO QUE ESTOS PRODUCTOS DE IM SE TRANSMITEN A LO LARGO DE LA TRAYECTORIA ENTRE EL AMPLIFICADOR Y EL ELEMENTO DE ANTENA, SE PUEDE AJUSTAR LA LONGITUD DE LA TRAYECTORIA DE ELEMENTO A ELEMENTO, CON LO QUE SE DESVIA EL FRENTE DE ONDA DEL PRODUCTO DE IM DE MANERA QUE SEAN MENOS COHERENTES. PARA MANTENER LA LONGITUD TOTAL DE TRANSMISION PARA LA CONSTANTE DE SEÑAL DESEADA, SE AJUSTA LA LONGITUD ENTRE EL DIVISOR Y EL AMPLIFICADOR DE MANERA QUE LA LONGITUD TOTAL DE TRANSMISION PERMANEZCA CONSTANTE DESDE EL DIVISOR AL ELEMENTO DE ANTENA. EL RESULTADO ES QUE EL FRENTE DE ONDA PARA LA SEÑAL DESEADA PERMANEZCA COHERENTE MIENTRAS QUE NO ES ASI EN EL CASO DE LOS PRODUCTOS DEIM. ESTO PRODUCE UNA MENOR INTERFERENCIA PROCEDENTE DE LOS PRODUCTOS DE IM.
ES97951361T 1996-12-30 1997-12-16 Reduccion de interferencias entre redes de antenas. Expired - Lifetime ES2176809T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9604830A SE508113C2 (sv) 1996-12-30 1996-12-30 Avlägsning av sändarstörning

Publications (1)

Publication Number Publication Date
ES2176809T3 true ES2176809T3 (es) 2002-12-01

Family

ID=20405179

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97951361T Expired - Lifetime ES2176809T3 (es) 1996-12-30 1997-12-16 Reduccion de interferencias entre redes de antenas.

Country Status (11)

Country Link
US (1) US5959579A (es)
EP (1) EP0948831B1 (es)
JP (1) JP2001507535A (es)
AR (1) AR008951A1 (es)
AU (1) AU726184B2 (es)
CA (1) CA2275770A1 (es)
DE (1) DE69712367T2 (es)
ES (1) ES2176809T3 (es)
SE (1) SE508113C2 (es)
TW (1) TW370746B (es)
WO (1) WO1998029921A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10336087A (ja) * 1997-05-30 1998-12-18 Kyocera Corp 最大比合成送信ダイバーシティ装置
SE512437C2 (sv) * 1998-07-27 2000-03-20 Ericsson Telefon Ab L M Förfarande och anordning för reducering av intermodulationsdistortion vid radiokommunikation
CN1263623C (zh) 2000-05-16 2006-07-12 日产自动车株式会社 用于控制车辆速度和车辆间距离的系统和方法
CN1454404A (zh) * 2000-09-02 2003-11-05 诺基亚公司 固定波束天线阵、基站以及通过固定波束天线阵发射信号的方法
GB0102316D0 (en) * 2001-01-30 2001-03-14 Koninkl Philips Electronics Nv Radio communication system
US7313370B2 (en) * 2002-12-27 2007-12-25 Nokia Siemens Networks Oy Intermodulation product cancellation in communications
US6831600B1 (en) 2003-08-26 2004-12-14 Lockheed Martin Corporation Intermodulation suppression for transmit active phased array multibeam antennas with shaped beams

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314250A (en) * 1979-08-03 1982-02-02 Communications Satellite Corporation Intermodulation product suppression by antenna processing
SE435435B (sv) * 1983-02-16 1984-09-24 Ericsson Telefon Ab L M Dempningsanordning for antennsystem
US4500883A (en) * 1983-03-07 1985-02-19 The United States Of America As Represented By The Secretary Of The Army Adaptive multiple interference tracking and cancelling antenna
US4498083A (en) * 1983-03-30 1985-02-05 The United States Of America As Represented By The Secretary Of The Army Multiple interference null tracking array antenna
FR2621130B1 (fr) * 1987-09-25 1990-01-26 Centre Nat Etd Spatiales Dispositif de mesure de produits d'intermodulation d'un systeme recepteur
US5548813A (en) * 1994-03-24 1996-08-20 Ericsson Inc. Phased array cellular base station and associated methods for enhanced power efficiency
US5742258A (en) * 1995-08-22 1998-04-21 Hazeltine Corporation Low intermodulation electromagnetic feed cellular antennas

Also Published As

Publication number Publication date
AR008951A1 (es) 2000-02-23
JP2001507535A (ja) 2001-06-05
EP0948831B1 (en) 2002-05-02
WO1998029921A1 (en) 1998-07-09
EP0948831A1 (en) 1999-10-13
DE69712367T2 (de) 2002-11-07
AU726184B2 (en) 2000-11-02
SE9604830L (sv) 1998-07-01
AU5502098A (en) 1998-07-31
SE508113C2 (sv) 1998-08-31
DE69712367D1 (de) 2002-06-06
TW370746B (en) 1999-09-21
US5959579A (en) 1999-09-28
CA2275770A1 (en) 1998-07-09
SE9604830D0 (sv) 1996-12-30

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