DE60044121D1 - Funkfrequenzsignals - Google Patents

Funkfrequenzsignals

Info

Publication number
DE60044121D1
DE60044121D1 DE60044121T DE60044121T DE60044121D1 DE 60044121 D1 DE60044121 D1 DE 60044121D1 DE 60044121 T DE60044121 T DE 60044121T DE 60044121 T DE60044121 T DE 60044121T DE 60044121 D1 DE60044121 D1 DE 60044121D1
Authority
DE
Germany
Prior art keywords
limiter
radio frequency
quadrature
feedback circuit
amplitude
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
DE60044121T
Other languages
English (en)
Inventor
Paul H Gailus
William J Turney
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.)
Motorola Mobility LLC
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 DE60044121D1 publication Critical patent/DE60044121D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H03F1/3247—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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
    • 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
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • H03F1/565—Modifications of input or output impedances, not otherwise provided for using inductive elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE60044121T 1999-12-20 2000-11-02 Funkfrequenzsignals Expired - Lifetime DE60044121D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/468,025 US6449465B1 (en) 1999-12-20 1999-12-20 Method and apparatus for linear amplification of a radio frequency signal
PCT/US2000/030336 WO2001047127A1 (en) 1999-12-20 2000-11-02 Method and apparatus for linear amplification of a radio frequency signal

Publications (1)

Publication Number Publication Date
DE60044121D1 true DE60044121D1 (de) 2010-05-20

Family

ID=23858135

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60044121T Expired - Lifetime DE60044121D1 (de) 1999-12-20 2000-11-02 Funkfrequenzsignals

Country Status (7)

Country Link
US (1) US6449465B1 (de)
EP (1) EP1155499B1 (de)
AT (1) ATE463915T1 (de)
BR (1) BRPI0008250B1 (de)
CA (1) CA2371792C (de)
DE (1) DE60044121D1 (de)
WO (1) WO2001047127A1 (de)

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Also Published As

Publication number Publication date
US6449465B1 (en) 2002-09-10
EP1155499A4 (de) 2004-08-25
EP1155499A1 (de) 2001-11-21
BRPI0008250B1 (pt) 2016-11-22
CA2371792A1 (en) 2001-06-28
EP1155499B1 (de) 2010-04-07
BR0008250A (pt) 2002-04-09
ATE463915T1 (de) 2010-04-15
CA2371792C (en) 2005-05-17
WO2001047127A1 (en) 2001-06-28

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