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

Family Applications Before (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) ATE225991T1 (de)
CA (1) CA2161901C (de)
DE (2) DE69434350T2 (de)
WO (1) WO1995001009A1 (de)

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US7082171B1 (en) 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
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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
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Also Published As

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

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