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GB2437573B - Combiner circuit, amplifier circuit and RF transmitter including the combiner circuit and the amplifier circuit - Google Patents

Combiner circuit, amplifier circuit and RF transmitter including the combiner circuit and the amplifier circuit

Info

Publication number
GB2437573B
GB2437573B GB0608365A GB0608365A GB2437573B GB 2437573 B GB2437573 B GB 2437573B GB 0608365 A GB0608365 A GB 0608365A GB 0608365 A GB0608365 A GB 0608365A GB 2437573 B GB2437573 B GB 2437573B
Authority
GB
United Kingdom
Prior art keywords
circuit
combiner
amplifier
amplifier circuit
transmitter including
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
GB0608365A
Other versions
GB2437573A (en
GB0608365D0 (en
Inventor
Anders Stensgaard Larsen
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 GB0608365A priority Critical patent/GB2437573B/en
Publication of GB0608365D0 publication Critical patent/GB0608365D0/en
Publication of GB2437573A publication Critical patent/GB2437573A/en
Application granted granted Critical
Publication of GB2437573B publication Critical patent/GB2437573B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
    • H03F1/07—Doherty-type amplifiers
    • 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
    • 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
    • H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
    • 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
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • 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
    • H04B1/0483—Transmitters with multiple parallel paths
    • 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
    • H04B2001/045—Circuits with power amplifiers with means for improving efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
GB0608365A 2006-04-28 2006-04-28 Combiner circuit, amplifier circuit and RF transmitter including the combiner circuit and the amplifier circuit Expired - Fee Related GB2437573B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0608365A GB2437573B (en) 2006-04-28 2006-04-28 Combiner circuit, amplifier circuit and RF transmitter including the combiner circuit and the amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0608365A GB2437573B (en) 2006-04-28 2006-04-28 Combiner circuit, amplifier circuit and RF transmitter including the combiner circuit and the amplifier circuit

Publications (3)

Publication Number Publication Date
GB0608365D0 GB0608365D0 (en) 2006-06-07
GB2437573A GB2437573A (en) 2007-10-31
GB2437573B true GB2437573B (en) 2008-04-23

Family

ID=36589934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0608365A Expired - Fee Related GB2437573B (en) 2006-04-28 2006-04-28 Combiner circuit, amplifier circuit and RF transmitter including the combiner circuit and the amplifier circuit

Country Status (1)

Country Link
GB (1) GB2437573B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102158190A (en) * 2011-04-29 2011-08-17 中兴通讯股份有限公司 Doherty power amplifier and implementation method thereof
CN102185568A (en) 2011-04-29 2011-09-14 中兴通讯股份有限公司 Multi-combination power amplifier and realizing method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020093383A1 (en) * 2001-01-16 2002-07-18 Conexant Systems, Inc. Doherty power amplifier with integrated quarter wave transformer/combiner circuit
WO2006003608A1 (en) * 2004-06-29 2006-01-12 Koninklijke Philips Electronics N.V. Integrated doherty type amplifier arrangement with high power efficiency
JP2006060301A (en) * 2004-08-17 2006-03-02 Fujitsu Ltd amplifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020093383A1 (en) * 2001-01-16 2002-07-18 Conexant Systems, Inc. Doherty power amplifier with integrated quarter wave transformer/combiner circuit
WO2006003608A1 (en) * 2004-06-29 2006-01-12 Koninklijke Philips Electronics N.V. Integrated doherty type amplifier arrangement with high power efficiency
JP2006060301A (en) * 2004-08-17 2006-03-02 Fujitsu Ltd amplifier

Also Published As

Publication number Publication date
GB2437573A (en) 2007-10-31
GB0608365D0 (en) 2006-06-07

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Legal Events

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

Effective date: 20120428