GB2455555B - Amplifier circuit for use in a radio frequency receiver and a method of operation - Google Patents

Amplifier circuit for use in a radio frequency receiver and a method of operation

Info

Publication number
GB2455555B
GB2455555B GB0724370A GB0724370A GB2455555B GB 2455555 B GB2455555 B GB 2455555B GB 0724370 A GB0724370 A GB 0724370A GB 0724370 A GB0724370 A GB 0724370A GB 2455555 B GB2455555 B GB 2455555B
Authority
GB
United Kingdom
Prior art keywords
radio frequency
amplifier circuit
frequency receiver
receiver
amplifier
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
GB0724370A
Other versions
GB0724370D0 (en
GB2455555A (en
Inventor
Haim Malka
Moshe Ben-Ayun
Oleg Chermoshniuk
Yaniv Salem
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
Priority to GB0724370A priority Critical patent/GB2455555B/en
Publication of GB0724370D0 publication Critical patent/GB0724370D0/en
Publication of GB2455555A publication Critical patent/GB2455555A/en
Application granted granted Critical
Publication of GB2455555B publication Critical patent/GB2455555B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/108—A coil being added in the drain circuit of a FET amplifier stage, e.g. for noise reducing purposes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/18—Indexing scheme relating to amplifiers the bias of the gate of a FET being controlled by a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/243—A series resonance being added in series in the input circuit, e.g. base, gate, of an amplifier stage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/391—Indexing scheme relating to amplifiers the output circuit of an amplifying stage comprising an LC-network
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/78—A comparator being used in a controlling circuit of an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45166—Only one input of the dif amp being used for an input signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
GB0724370A 2007-12-14 2007-12-14 Amplifier circuit for use in a radio frequency receiver and a method of operation Expired - Fee Related GB2455555B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0724370A GB2455555B (en) 2007-12-14 2007-12-14 Amplifier circuit for use in a radio frequency receiver and a method of operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0724370A GB2455555B (en) 2007-12-14 2007-12-14 Amplifier circuit for use in a radio frequency receiver and a method of operation

Publications (3)

Publication Number Publication Date
GB0724370D0 GB0724370D0 (en) 2008-01-23
GB2455555A GB2455555A (en) 2009-06-17
GB2455555B true GB2455555B (en) 2009-12-09

Family

ID=39016549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0724370A Expired - Fee Related GB2455555B (en) 2007-12-14 2007-12-14 Amplifier circuit for use in a radio frequency receiver and a method of operation

Country Status (1)

Country Link
GB (1) GB2455555B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10069469B2 (en) 2016-01-29 2018-09-04 Qualcomm Incorporated Adaptive bias circuit for a radio frequency (RF) amplifier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6426677B1 (en) * 2001-09-14 2002-07-30 Intersil Americas Inc. Linearization bias circuit for BJT amplifiers
EP1341299A1 (en) * 2002-02-27 2003-09-03 TDK Corporation Power detection in an amplification device
US20050270103A1 (en) * 2004-04-09 2005-12-08 Nicolas Constantin Dynamic biasing system for an amplifier
US20070096823A1 (en) * 2005-10-17 2007-05-03 Wj Communications, Inc. Bias circuit for BJT amplifier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6426677B1 (en) * 2001-09-14 2002-07-30 Intersil Americas Inc. Linearization bias circuit for BJT amplifiers
EP1341299A1 (en) * 2002-02-27 2003-09-03 TDK Corporation Power detection in an amplification device
US20050270103A1 (en) * 2004-04-09 2005-12-08 Nicolas Constantin Dynamic biasing system for an amplifier
US20070096823A1 (en) * 2005-10-17 2007-05-03 Wj Communications, Inc. Bias circuit for BJT amplifier

Also Published As

Publication number Publication date
GB0724370D0 (en) 2008-01-23
GB2455555A (en) 2009-06-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20201214