EP3155721A4 - Method and apparatus for envelope shaping in envelope tracking power amplification - Google Patents

Method and apparatus for envelope shaping in envelope tracking power amplification Download PDF

Info

Publication number
EP3155721A4
EP3155721A4 EP14894315.2A EP14894315A EP3155721A4 EP 3155721 A4 EP3155721 A4 EP 3155721A4 EP 14894315 A EP14894315 A EP 14894315A EP 3155721 A4 EP3155721 A4 EP 3155721A4
Authority
EP
European Patent Office
Prior art keywords
envelope
power amplification
tracking power
shaping
envelope tracking
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.)
Withdrawn
Application number
EP14894315.2A
Other languages
German (de)
French (fr)
Other versions
EP3155721A1 (en
Inventor
Zhancang WANG
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.)
Provenance Asset Group LLC
Original Assignee
Nokia Technologies Oy
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 Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of EP3155721A1 publication Critical patent/EP3155721A1/en
Publication of EP3155721A4 publication Critical patent/EP3155721A4/en
Withdrawn legal-status Critical Current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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • 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
    • 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
    • H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
    • 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
    • H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
    • 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
    • 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
    • H03F2200/462—Indexing scheme relating to amplifiers the current being sensed

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Amplifiers (AREA)
EP14894315.2A 2014-06-13 2014-06-13 Method and apparatus for envelope shaping in envelope tracking power amplification Withdrawn EP3155721A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/079807 WO2015188363A1 (en) 2014-06-13 2014-06-13 Method and apparatus for envelope shaping in envelope tracking power amplification

Publications (2)

Publication Number Publication Date
EP3155721A1 EP3155721A1 (en) 2017-04-19
EP3155721A4 true EP3155721A4 (en) 2018-02-07

Family

ID=54832739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14894315.2A Withdrawn EP3155721A4 (en) 2014-06-13 2014-06-13 Method and apparatus for envelope shaping in envelope tracking power amplification

Country Status (2)

Country Link
EP (1) EP3155721A4 (en)
WO (1) WO2015188363A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120269240A1 (en) * 2011-04-25 2012-10-25 Skyworks Solutions, Inc. Apparatus and methods for envelope tracking

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6157253A (en) * 1999-09-03 2000-12-05 Motorola, Inc. High efficiency power amplifier circuit with wide dynamic backoff range
WO2008129611A1 (en) * 2007-04-06 2008-10-30 Panasonic Corporation High frequency transmitter apparatus
EP2144365A1 (en) * 2008-07-11 2010-01-13 Alcatel Lucent Device for amplifying signals with an envelope tracking technique or an envelope extraction and restoration technique controlled by a switched modulation
US9002303B2 (en) * 2011-05-27 2015-04-07 Samsung Electronics Co., Ltd. Method and apparatus for programmable envelope shaping circuit based on piecewise linear interpolation
JP2013192135A (en) * 2012-03-15 2013-09-26 Panasonic Corp Doherty amplifier
US8902002B2 (en) * 2012-05-30 2014-12-02 Nujira Limited Adaptive biasing scheme for an amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120269240A1 (en) * 2011-04-25 2012-10-25 Skyworks Solutions, Inc. Apparatus and methods for envelope tracking

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DONGSU KIM ET AL: "Optimization for Envelope Shaped Operation of Envelope Tracking Power Amplifier", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, PLENUM, USA, vol. 59, no. 7, 13 July 2011 (2011-07-13), pages 1787 - 1795, XP011369961, ISSN: 0018-9480, DOI: 10.1109/TMTT.2011.2140124 *
See also references of WO2015188363A1 *

Also Published As

Publication number Publication date
EP3155721A1 (en) 2017-04-19
WO2015188363A1 (en) 2015-12-17

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A4 Supplementary search report drawn up and despatched

Effective date: 20180108

RIC1 Information provided on ipc code assigned before grant

Ipc: H03F 3/195 20060101ALI20180102BHEP

Ipc: H03F 3/24 20060101ALI20180102BHEP

Ipc: H03F 1/30 20060101ALI20180102BHEP

Ipc: H03F 1/02 20060101AFI20180102BHEP

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Owner name: PROVENANCE ASSET GROUP LLC

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Effective date: 20180817