FI990687A0 - Langattoman viestimen antennin sovitusjärjestelmä - Google Patents

Langattoman viestimen antennin sovitusjärjestelmä

Info

Publication number
FI990687A0
FI990687A0 FI990687A FI990687A FI990687A0 FI 990687 A0 FI990687 A0 FI 990687A0 FI 990687 A FI990687 A FI 990687A FI 990687 A FI990687 A FI 990687A FI 990687 A0 FI990687 A0 FI 990687A0
Authority
FI
Finland
Prior art keywords
adapting
antenna
wireless communication
communication device
wireless
Prior art date
Application number
FI990687A
Other languages
English (en)
Swedish (sv)
Other versions
FI990687A (fi
Inventor
Olli Talvitie
Saku Lahti
Petri Kotilainen
Masawan Ramesh
Original Assignee
Nokia Mobile Phones 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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority to FI990687A priority Critical patent/FI990687A/fi
Publication of FI990687A0 publication Critical patent/FI990687A0/fi
Priority to EP00660058A priority patent/EP1041723A3/en
Priority to US09/537,501 priority patent/US6895225B1/en
Publication of FI990687A publication Critical patent/FI990687A/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
FI990687A 1999-03-29 1999-03-29 Langattoman viestimen antennin sovitusjärjestelmä FI990687A (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI990687A FI990687A (fi) 1999-03-29 1999-03-29 Langattoman viestimen antennin sovitusjärjestelmä
EP00660058A EP1041723A3 (en) 1999-03-29 2000-03-24 System for matching an antenna for a wireless communication device
US09/537,501 US6895225B1 (en) 1999-03-29 2000-03-29 System for matching an antenna for a wireless communication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI990687A FI990687A (fi) 1999-03-29 1999-03-29 Langattoman viestimen antennin sovitusjärjestelmä

Publications (2)

Publication Number Publication Date
FI990687A0 true FI990687A0 (fi) 1999-03-29
FI990687A FI990687A (fi) 2000-09-30

Family

ID=8554300

Family Applications (1)

Application Number Title Priority Date Filing Date
FI990687A FI990687A (fi) 1999-03-29 1999-03-29 Langattoman viestimen antennin sovitusjärjestelmä

Country Status (3)

Country Link
US (1) US6895225B1 (fi)
EP (1) EP1041723A3 (fi)
FI (1) FI990687A (fi)

Families Citing this family (28)

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US6556814B1 (en) * 1999-07-22 2003-04-29 Motorola, Inc. Memory-based amplifier load adjust system
KR100565284B1 (ko) * 2003-07-30 2006-03-30 엘지전자 주식회사 이동통신단말기의 송신장치
EP1542026A1 (en) * 2003-12-11 2005-06-15 Siemens Aktiengesellschaft Method and device for determining an electromagnetic reflection coefficient of an antenna, a method and device for automatically changing the matching of a power amplifier to an antenna, and a method and a device for automatically reducing the output power of a power amplifier
EP1589607A1 (en) * 2004-04-19 2005-10-26 Sony Ericsson Mobile Communications AB Portable electronic equipment having improved radio performance
WO2005101570A1 (en) * 2004-04-19 2005-10-27 Sony Ericsson Mobile Communications Ab Portable electronic equipment having improved radio performance
US7834813B2 (en) * 2004-10-15 2010-11-16 Skycross, Inc. Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness
US8000737B2 (en) * 2004-10-15 2011-08-16 Sky Cross, Inc. Methods and apparatuses for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness
US7663555B2 (en) * 2004-10-15 2010-02-16 Sky Cross Inc. Method and apparatus for adaptively controlling antenna parameters to enhance efficiency and maintain antenna size compactness
US7440731B2 (en) * 2005-07-27 2008-10-21 Freescale Semiconductor, Inc. Power amplifier with VSWR detection and correction feature
KR100752280B1 (ko) * 2005-12-14 2007-08-28 삼성전자주식회사 휴대단말기의 안테나주파수 자동매칭 장치
US20100127796A1 (en) * 2006-03-22 2010-05-27 C10 Communications Pty Ltd Electronic filter and an electronic circuit for use in a switching application
WO2009003087A2 (en) * 2007-06-26 2008-12-31 Skyworks Solutions, Inc. Error vector magnitude control within a linear transmitter
JP2009253593A (ja) * 2008-04-04 2009-10-29 Sharp Corp アンテナ装置およびこれを用いた通信機
DE102008024482B4 (de) * 2008-05-21 2016-10-06 Qualcomm Technologies, Inc. (N.D.Ges.D. Staates Delaware) Schaltungsanordnung zur Impedanzanpassung, elektronisches Bauelement und Mobilfunkgerät
DE102009017945B4 (de) * 2009-04-17 2015-11-05 Qualcomm Technologies, Inc. (N.D.Ges.D. Staates Delaware) Verfahren zur Impedanzanpassung
US8774743B2 (en) * 2009-10-14 2014-07-08 Blackberry Limited Dynamic real-time calibration for antenna matching in a radio frequency receiver system
US8190109B2 (en) * 2009-10-14 2012-05-29 Research In Motion Limited Dynamic real-time calibration for antenna matching in a radio frequency transmitter system
US8717104B1 (en) * 2011-02-17 2014-05-06 Anadigics, Inc. Vector voltage samplers for RF interface control of power amplifier
US8903329B2 (en) * 2011-05-31 2014-12-02 Facebook, Inc. Switchable antenna elements for a wireless communications device
US9191829B2 (en) 2011-05-31 2015-11-17 Facebook, Inc. Sensing proximity utilizing a wireless radio subsystem
KR101305597B1 (ko) * 2011-08-08 2013-09-09 엘지이노텍 주식회사 임피던스 정합장치 및 방법
WO2013074063A1 (en) 2011-11-14 2013-05-23 Research In Motion Limited Perturbation-based dynamic measurement of antenna impedance in real-time
US8576013B2 (en) * 2011-12-29 2013-11-05 Mks Instruments, Inc. Power distortion-based servo control systems for frequency tuning RF power sources
US9077426B2 (en) 2012-10-31 2015-07-07 Blackberry Limited Adaptive antenna matching via a transceiver-based perturbation technique
KR101508835B1 (ko) * 2013-08-06 2015-04-07 삼성전기주식회사 전력검출회로 및 그를 구비하는 rf 신호 증폭회로
KR102166351B1 (ko) * 2014-01-29 2020-10-15 삼성전자주식회사 통신 제공 장치 및 방법
US10229816B2 (en) 2016-05-24 2019-03-12 Mks Instruments, Inc. Solid-state impedance matching systems including a hybrid tuning network with a switchable coarse tuning network and a varactor fine tuning network
US10693516B2 (en) * 2018-06-25 2020-06-23 Apple Inc. Electronic device having adjustable antenna settings

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US3919644A (en) 1970-02-02 1975-11-11 Gen Dynamics Corp Automatic antenna coupler utilizing system for measuring the real part of the complex impedance or admittance presented by an antenna or other network
US4041395A (en) * 1976-08-02 1977-08-09 Integral Engineering & Manufacturing Corporation Transmitter performance monitor and antenna matching system
US4493112A (en) 1981-11-19 1985-01-08 Rockwell International Corporation Antenna tuner discriminator
US5214372A (en) 1989-05-11 1993-05-25 Nokia Mobile Phones Ltd. Linearizing circuit for dectection of a RF-power sensor
DE4109816C1 (fi) 1991-03-26 1992-06-04 Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De
JP2794987B2 (ja) * 1991-05-31 1998-09-10 日本電気株式会社 携帯無線装置
US5564086A (en) * 1993-11-29 1996-10-08 Motorola, Inc. Method and apparatus for enhancing an operating characteristic of a radio transmitter
GB2289989B (en) * 1994-05-25 1999-01-06 Nokia Mobile Phones Ltd Adaptive antenna matching
JPH0837434A (ja) * 1994-07-25 1996-02-06 Oki Electric Ind Co Ltd 移動体通信装置の出力パワー制御回路及び空中線共用器
WO1996037967A1 (en) 1995-05-26 1996-11-28 Motorola Inc. Selective call receiver having automatically adjusted impedance match for antenna
US5812066A (en) * 1995-08-16 1998-09-22 Terk Technologies Corporation Antenna tuning control circuit
TW353833B (en) * 1995-12-22 1999-03-01 Motorola Inc Wireless communication device having a reconfigurable matching circuit
US5991608A (en) * 1996-04-16 1999-11-23 U.S. Phillips Corporation Portable communication device with optimized transmission loss
AU1678097A (en) * 1996-12-23 1998-07-17 Telefonaktiebolaget Lm Ericsson (Publ) Radio telephone with separate antenna for stand-by mode
US5949369A (en) * 1996-12-30 1999-09-07 At & T Corp, Portable satellite phone having directional antenna for direct link to satellite
US6078794A (en) * 1997-02-19 2000-06-20 Motorola, Inc. Impedance matching for a dual band power amplifier
JP3399545B2 (ja) * 1997-03-18 2003-04-21 三菱電機株式会社 可変指向性アンテナ装置
JP3811557B2 (ja) * 1997-10-21 2006-08-23 松下電器産業株式会社 複数周波数帯域高効率線形電力増幅器
JPH11308142A (ja) * 1998-04-21 1999-11-05 Casio Comput Co Ltd 携帯通信装置
JP3214448B2 (ja) * 1998-05-28 2001-10-02 日本電気株式会社 無線機器および無線機器の制御方法
JP2000124723A (ja) * 1998-10-13 2000-04-28 Sony Corp 通信装置、および、測距手段を有する小型の携帯可能な通信装置
US6735418B1 (en) * 1999-05-24 2004-05-11 Intel Corporation Antenna interface

Also Published As

Publication number Publication date
EP1041723A2 (en) 2000-10-04
US6895225B1 (en) 2005-05-17
EP1041723A3 (en) 2003-09-10
FI990687A (fi) 2000-09-30

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