GB2532681A - Envelope modulator - Google Patents

Envelope modulator Download PDF

Info

Publication number
GB2532681A
GB2532681A GB1603902.6A GB201603902A GB2532681A GB 2532681 A GB2532681 A GB 2532681A GB 201603902 A GB201603902 A GB 201603902A GB 2532681 A GB2532681 A GB 2532681A
Authority
GB
United Kingdom
Prior art keywords
envelope modulator
lag
lead
network
gain compensated
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.)
Granted
Application number
GB1603902.6A
Other versions
GB2532681B (en
GB201603902D0 (en
Inventor
Watkins Gavin
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.)
Toshiba Europe Ltd
Original Assignee
Toshiba Research Europe 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 Toshiba Research Europe Ltd filed Critical Toshiba Research Europe Ltd
Publication of GB201603902D0 publication Critical patent/GB201603902D0/en
Publication of GB2532681A publication Critical patent/GB2532681A/en
Application granted granted Critical
Publication of GB2532681B publication Critical patent/GB2532681B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H03F1/0211—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
    • 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
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
    • 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
    • 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
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
    • 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
    • H03F2200/451—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
    • H03F2200/507—A switch being used for switching on or off a supply or supplying circuit in an IC-block amplifier circuit

Abstract

In an embodiment an envelope modulator comprises a gain compensated lag-lead network or a gain compensated lead-lag network.
GB1603902.6A 2013-09-13 2013-09-13 Envelope modulator Expired - Fee Related GB2532681B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB2013/052402 WO2015036722A1 (en) 2013-09-13 2013-09-13 Envelope modulator

Publications (3)

Publication Number Publication Date
GB201603902D0 GB201603902D0 (en) 2016-04-20
GB2532681A true GB2532681A (en) 2016-05-25
GB2532681B GB2532681B (en) 2021-05-19

Family

ID=49212994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1603902.6A Expired - Fee Related GB2532681B (en) 2013-09-13 2013-09-13 Envelope modulator

Country Status (3)

Country Link
US (1) US10075135B2 (en)
GB (1) GB2532681B (en)
WO (1) WO2015036722A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10097137B2 (en) 2014-08-29 2018-10-09 Kabushiki Kaisha Toshiba Timing alignment sensitivity for envelope tracking
US10666321B2 (en) * 2016-12-29 2020-05-26 Tektronix, Inc. Sampling gate for broadband frequency reconstruction
US11283557B2 (en) * 2017-04-28 2022-03-22 Panasonic Intellectual Property Corporation Of America Measurement apparatus and measurement method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080104432A1 (en) * 2006-10-30 2008-05-01 Quantance, Inc. Power combining power supply system
GB2484475A (en) * 2010-10-11 2012-04-18 Toshiba Res Europ Ltd A power supply modulator for an RF amplifier, using a current-output class G amplifier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6710646B1 (en) 2000-05-05 2004-03-23 Telefonaktiebolaget Lm Ericsson Cuk style inverter with hysteretic control
GB2398648B (en) 2003-02-19 2005-11-09 Nujira Ltd Power supply stage for an amplifier
US8405456B2 (en) * 2009-03-31 2013-03-26 Quantance, Inc. High speed power supply system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080104432A1 (en) * 2006-10-30 2008-05-01 Quantance, Inc. Power combining power supply system
GB2484475A (en) * 2010-10-11 2012-04-18 Toshiba Res Europ Ltd A power supply modulator for an RF amplifier, using a current-output class G amplifier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Mann, S. et al: "A hybrid Cartesian loop and envelope modulated PA linear transmitter architecture", Proc. 14th IEEE Personal, Indoor and mobile radio comm. Conf., 7-10 Sept. 2003, Vol. 2, pp 2721-2725 *

Also Published As

Publication number Publication date
GB2532681B (en) 2021-05-19
WO2015036722A1 (en) 2015-03-19
GB201603902D0 (en) 2016-04-20
US10075135B2 (en) 2018-09-11
US20160226449A1 (en) 2016-08-04

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Legal Events

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

Effective date: 20220913