ATE293852T1 - Sender und verfahren für einen sender zur kompensation von veränderlicher last ohne isolator - Google Patents

Sender und verfahren für einen sender zur kompensation von veränderlicher last ohne isolator

Info

Publication number
ATE293852T1
ATE293852T1 AT02008491T AT02008491T ATE293852T1 AT E293852 T1 ATE293852 T1 AT E293852T1 AT 02008491 T AT02008491 T AT 02008491T AT 02008491 T AT02008491 T AT 02008491T AT E293852 T1 ATE293852 T1 AT E293852T1
Authority
AT
Austria
Prior art keywords
transmitter
isolator
gain
compensating
variable load
Prior art date
Application number
AT02008491T
Other languages
English (en)
Inventor
Lawrence Francis Cygan
Paul Howe Gailus
William Joseph Turney
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ATE293852T1 publication Critical patent/ATE293852T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3294—Acting on the real and imaginary components of the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/345—Negative-feedback-circuit arrangements with or without positive feedback using hybrid or directional couplers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/57—Separate feedback of real and complex signals being present
    • 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
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
    • 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
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0433—Circuits with power amplifiers with linearisation using feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
AT02008491T 1993-06-24 1994-06-03 Sender und verfahren für einen sender zur kompensation von veränderlicher last ohne isolator ATE293852T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/080,635 US5423082A (en) 1993-06-24 1993-06-24 Method for a transmitter to compensate for varying loading without an isolator

Publications (1)

Publication Number Publication Date
ATE293852T1 true ATE293852T1 (de) 2005-05-15

Family

ID=22158623

Family Applications (2)

Application Number Title Priority Date Filing Date
AT02008491T ATE293852T1 (de) 1993-06-24 1994-06-03 Sender und verfahren für einen sender zur kompensation von veränderlicher last ohne isolator
AT94921234T ATE225991T1 (de) 1993-06-24 1994-06-03 Sender mit verfahren zur kompensierung einer variablen last ohne gebrauch eines isolators

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT94921234T ATE225991T1 (de) 1993-06-24 1994-06-03 Sender mit verfahren zur kompensierung einer variablen last ohne gebrauch eines isolators

Country Status (7)

Country Link
US (2) US5423082A (de)
EP (2) EP0710411B1 (de)
CN (1) CN1046385C (de)
AT (2) ATE293852T1 (de)
CA (1) CA2161901C (de)
DE (2) DE69431522T2 (de)
WO (1) WO1995001009A1 (de)

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US6215986B1 (en) * 1997-09-26 2001-04-10 Nortel Networks Corporation Reducing radio transmitter distortion
US6618096B1 (en) 1997-09-29 2003-09-09 Scientific-Atlanta, Inc. System and method for adaptively balancing quadrature modulators for vestigial-sideband generation
US6069526A (en) * 1998-08-04 2000-05-30 Qualcomm Incorporated Partial or complete amplifier bypass
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6052568A (en) * 1998-08-24 2000-04-18 Celeritek Apparatus and method for efficiently implementing a satellite transceiver system
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
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US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US6252456B1 (en) 1999-07-29 2001-06-26 Motorola, Inc. Power amplifier load controller and method for controlling a power amplifier load
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US6529716B1 (en) * 2000-01-11 2003-03-04 Skyworks Solutions, Inc. RF transmitter with extended efficient power control range
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US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US6362690B1 (en) 2000-04-19 2002-03-26 Ophir Rf, Inc. System and method for closed loop VSWR correction and tuning in RF power amplifiers
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7065154B2 (en) * 2000-12-29 2006-06-20 Nokia Corporation Baseband predistortion method for multicarrier transmitters
US6745015B2 (en) * 2001-02-08 2004-06-01 Motorola, Inc. Method for automatic carrier suppression tuning of a wireless communication device
JP3880329B2 (ja) * 2001-04-20 2007-02-14 株式会社日立国際電気 ループゲイン制御方法及び電力増幅回路
ATE397803T1 (de) * 2001-06-14 2008-06-15 Alcatel Lucent Verfahren und vorrichtung zur vorverzerrung eines sendesignals
US6850119B2 (en) 2001-08-31 2005-02-01 Rf Micro Devices, Inc. Power amplifier overload protection
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US20030114182A1 (en) * 2001-12-19 2003-06-19 Chan Paul L. Adaptive power amplifier
US7450907B2 (en) * 2002-03-07 2008-11-11 Nokia Corporation Power control device and method for calibrating the power of a transmitter or receiver in a mobile communication network
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7010278B2 (en) * 2002-10-25 2006-03-07 Freescale Semiconductor, Inc. Sideband suppression method and apparatus for quadrature modulator using magnitude measurements
DE60326755D1 (de) * 2002-12-12 2009-04-30 Nxp Bv Linearitätskonservierung eines leistungsverstärkers ohne isolator durch dynamische anpassung von verstärkung und phase
EP1573904B1 (de) * 2002-12-12 2010-06-02 Nxp B.V. Erhaltung der linearität eines isolatorfreien leistungsverstärkers durch dynamisches umschalten aktiver bauelemente
US7127220B2 (en) * 2002-12-23 2006-10-24 Spectrasite Communications Inc Apparatus and method to monitor and control power
GB2403613B (en) * 2003-07-04 2005-07-06 Motorola Inc Cartesian loop transmitter and method of adjusting an output level of such transmitter
DE102004026168A1 (de) * 2004-05-28 2005-12-22 Siemens Ag Verfahren zur Einstellung einer gewünschten Abstrahlleistung für die Antenne eines Funkkommunikationsgeräts sowie Funkkommunikationsgerät
US20060148430A1 (en) * 2004-12-30 2006-07-06 Motorola, Inc. Power management of a transmitter and supporting methods and apparatus
US7346317B2 (en) * 2005-04-04 2008-03-18 Freescale Semiconductor, Inc. Dynamic gain and phase compensation for power amplifier load switching
US20080003962A1 (en) * 2006-06-30 2008-01-03 Wai Lim Ngai Method and apparatus for providing adaptive supply voltage control of a power amplifier
WO2009003087A2 (en) * 2007-06-26 2008-12-31 Skyworks Solutions, Inc. Error vector magnitude control within a linear transmitter
DE102007061453B4 (de) * 2007-12-20 2015-07-23 Intel Mobile Communications GmbH Verfahren zum Kalibrieren eines Senders und Funksender
US8351874B2 (en) * 2008-04-08 2013-01-08 Telefonaktiebolaget Lm Ericsson (Publ) System and method for adaptive antenna impedance matching
US8536950B2 (en) * 2009-08-03 2013-09-17 Qualcomm Incorporated Multi-stage impedance matching
US8102205B2 (en) 2009-08-04 2012-01-24 Qualcomm, Incorporated Amplifier module with multiple operating modes
JP5499794B2 (ja) * 2010-03-15 2014-05-21 富士通株式会社 電力増幅装置
JP5643785B2 (ja) * 2012-06-15 2014-12-17 株式会社東芝 デジタル放送送信装置およびエキサイタ
TWI508463B (zh) * 2013-04-16 2015-11-11 Realtek Semiconductor Corp 無線傳輸系統以及決定無線傳輸系統之預設增益的方法
CN104113382B (zh) * 2013-04-22 2016-08-03 瑞昱半导体股份有限公司 无线传输系统以及确定无线传输系统的预设增益的方法
US10844188B2 (en) 2015-08-06 2020-11-24 Huntsman International Llc Isocyanate based organic xerogels with reduced density
CN106253182B (zh) * 2015-12-09 2019-02-19 深圳金达伸机房设备工程有限公司 一种母线系统插接箱
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Also Published As

Publication number Publication date
CA2161901A1 (en) 1995-01-05
DE69434350T2 (de) 2005-09-22
CN1046385C (zh) 1999-11-10
ATE225991T1 (de) 2002-10-15
US5542096A (en) 1996-07-30
WO1995001009A1 (en) 1995-01-05
DE69431522T2 (de) 2003-02-20
EP0710411A4 (de) 2000-04-12
DE69431522D1 (de) 2002-11-14
DE69434350D1 (de) 2005-05-25
EP1239597B1 (de) 2005-04-20
US5423082A (en) 1995-06-06
EP0710411B1 (de) 2002-10-09
EP1239597A1 (de) 2002-09-11
CN1125497A (zh) 1996-06-26
EP0710411A1 (de) 1996-05-08
CA2161901C (en) 2001-02-20

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties