GB2282290B - Radio transmitter with power amplifier linearizer - Google Patents

Radio transmitter with power amplifier linearizer

Info

Publication number
GB2282290B
GB2282290B GB9318694A GB9318694A GB2282290B GB 2282290 B GB2282290 B GB 2282290B GB 9318694 A GB9318694 A GB 9318694A GB 9318694 A GB9318694 A GB 9318694A GB 2282290 B GB2282290 B GB 2282290B
Authority
GB
United Kingdom
Prior art keywords
power amplifier
radio transmitter
amplifier linearizer
linearizer
transmitter
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
GB9318694A
Other versions
GB2282290A (en
GB9318694D0 (en
Inventor
Horowitz Ilan
Ayun Moshe Ben
Roni Shamsian
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 Israel Ltd
Original Assignee
Motorola Israel Ltd
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 Israel Ltd filed Critical Motorola Israel Ltd
Priority to GB9318694A priority Critical patent/GB2282290B/en
Publication of GB9318694D0 publication Critical patent/GB9318694D0/en
Priority to CN94190710A priority patent/CN1114847A/en
Priority to PCT/IB1994/000301 priority patent/WO1995006354A1/en
Priority to US08/424,298 priority patent/US5722056A/en
Priority to EP94927029A priority patent/EP0665996A1/en
Publication of GB2282290A publication Critical patent/GB2282290A/en
Application granted granted Critical
Publication of GB2282290B publication Critical patent/GB2282290B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H03F1/32—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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
GB9318694A 1993-08-20 1993-09-09 Radio transmitter with power amplifier linearizer Expired - Fee Related GB2282290B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB9318694A GB2282290B (en) 1993-09-09 1993-09-09 Radio transmitter with power amplifier linearizer
CN94190710A CN1114847A (en) 1993-08-20 1994-08-11 Radio transmitter with power amplifier linearization circuit
PCT/IB1994/000301 WO1995006354A1 (en) 1993-08-20 1994-08-11 Radio transmitter with power amplifier linearizer
US08/424,298 US5722056A (en) 1993-08-20 1994-08-11 Radio transmitter with power amplifier linearizer
EP94927029A EP0665996A1 (en) 1993-08-20 1994-08-11 Radio transmitter with power amplifier linearizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9318694A GB2282290B (en) 1993-09-09 1993-09-09 Radio transmitter with power amplifier linearizer

Publications (3)

Publication Number Publication Date
GB9318694D0 GB9318694D0 (en) 1993-10-27
GB2282290A GB2282290A (en) 1995-03-29
GB2282290B true GB2282290B (en) 1997-11-19

Family

ID=10741753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9318694A Expired - Fee Related GB2282290B (en) 1993-08-20 1993-09-09 Radio transmitter with power amplifier linearizer

Country Status (1)

Country Link
GB (1) GB2282290B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2301247A (en) 1995-05-22 1996-11-27 Univ Bristol A cartesian loop transmitter amplifier
GB2326297B (en) * 1997-06-09 2002-03-20 Linear Modulation Tech Radio frequency signal processing and amplification in cartesian loop amplifiers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265270A (en) * 1992-03-02 1993-09-22 Motorola Ltd Linearization of an rf power amplifier using a feedback loop controlled by a look-up table

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265270A (en) * 1992-03-02 1993-09-22 Motorola Ltd Linearization of an rf power amplifier using a feedback loop controlled by a look-up table

Also Published As

Publication number Publication date
GB2282290A (en) 1995-03-29
GB9318694D0 (en) 1993-10-27

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Legal Events

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

Effective date: 20000909