CA2116582C - Rf amplifier bias control method and apparatus - Google Patents

Rf amplifier bias control method and apparatus

Info

Publication number
CA2116582C
CA2116582C CA002116582A CA2116582A CA2116582C CA 2116582 C CA2116582 C CA 2116582C CA 002116582 A CA002116582 A CA 002116582A CA 2116582 A CA2116582 A CA 2116582A CA 2116582 C CA2116582 C CA 2116582C
Authority
CA
Canada
Prior art keywords
amplifier
current
bias
circuit
operating point
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 - Fee Related
Application number
CA002116582A
Other languages
English (en)
French (fr)
Other versions
CA2116582A1 (en
Inventor
John L. Soliday
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 Solutions Inc
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
Publication of CA2116582A1 publication Critical patent/CA2116582A1/en
Application granted granted Critical
Publication of CA2116582C publication Critical patent/CA2116582C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03F1/02—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
    • H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A
    • H03F1/0272—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 polarisation voltage or current, e.g. gliding Class A by using a signal derived from the output 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
    • H03F1/02—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
    • H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A
    • 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
    • H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A
    • H03F1/0266—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 polarisation voltage or current, e.g. gliding Class A by using a signal derived from the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/192—A hybrid coupler being used at the input of an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/204—A hybrid coupler being used at the output of an amplifier circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
CA002116582A 1992-07-02 1993-06-14 Rf amplifier bias control method and apparatus Expired - Fee Related CA2116582C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/908,144 US5311143A (en) 1992-07-02 1992-07-02 RF amplifier bias control method and apparatus
US908,144 1992-07-02

Publications (2)

Publication Number Publication Date
CA2116582A1 CA2116582A1 (en) 1994-01-20
CA2116582C true CA2116582C (en) 1997-08-26

Family

ID=25425272

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002116582A Expired - Fee Related CA2116582C (en) 1992-07-02 1993-06-14 Rf amplifier bias control method and apparatus

Country Status (11)

Country Link
US (1) US5311143A (forum.php)
EP (1) EP0604622A4 (forum.php)
JP (1) JP3300836B2 (forum.php)
KR (1) KR0138224B1 (forum.php)
CN (1) CN1037734C (forum.php)
BR (1) BR9305564A (forum.php)
CA (1) CA2116582C (forum.php)
FI (1) FI940805L (forum.php)
MY (1) MY116332A (forum.php)
TW (1) TW225058B (forum.php)
WO (1) WO1994001930A1 (forum.php)

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US6859098B2 (en) 2003-01-17 2005-02-22 M/A-Com, Inc. Apparatus, methods and articles of manufacture for control in an electromagnetic processor
US7480511B2 (en) * 2003-09-19 2009-01-20 Trimble Navigation Limited Method and system for delivering virtual reference station data
US7091778B2 (en) 2003-09-19 2006-08-15 M/A-Com, Inc. Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission
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US7343138B2 (en) * 2003-12-08 2008-03-11 M/A-Com, Inc. Compensating for load pull in electromagentic signal propagation using adaptive impedance matching
US7177370B2 (en) * 2003-12-17 2007-02-13 Triquint Semiconductor, Inc. Method and architecture for dual-mode linear and saturated power amplifier operation
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Also Published As

Publication number Publication date
JPH06510655A (ja) 1994-11-24
MY116332A (en) 2004-01-31
JP3300836B2 (ja) 2002-07-08
CA2116582A1 (en) 1994-01-20
CN1081794A (zh) 1994-02-09
BR9305564A (pt) 1995-12-26
FI940805A0 (fi) 1994-02-21
FI940805A7 (fi) 1994-02-21
EP0604622A4 (en) 1995-12-06
WO1994001930A1 (en) 1994-01-20
EP0604622A1 (en) 1994-07-06
TW225058B (forum.php) 1994-06-11
FI940805L (fi) 1994-02-21
KR0138224B1 (ko) 1998-06-15
US5311143A (en) 1994-05-10
CN1037734C (zh) 1998-03-11

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