JP5731326B2 - 変調器およびそれを用いる増幅器 - Google Patents

変調器およびそれを用いる増幅器 Download PDF

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Publication number
JP5731326B2
JP5731326B2 JP2011184921A JP2011184921A JP5731326B2 JP 5731326 B2 JP5731326 B2 JP 5731326B2 JP 2011184921 A JP2011184921 A JP 2011184921A JP 2011184921 A JP2011184921 A JP 2011184921A JP 5731326 B2 JP5731326 B2 JP 5731326B2
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JP
Japan
Prior art keywords
signal
phase
signals
constant envelope
modulator
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
JP2011184921A
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English (en)
Japanese (ja)
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JP2013048308A (ja
JP2013048308A5 (https=
Inventor
エヌ ロズキン アレクサンダー
エヌ ロズキン アレクサンダー
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2011184921A priority Critical patent/JP5731326B2/ja
Priority to US13/529,570 priority patent/US8648655B2/en
Publication of JP2013048308A publication Critical patent/JP2013048308A/ja
Publication of JP2013048308A5 publication Critical patent/JP2013048308A5/ja
Application granted granted Critical
Publication of JP5731326B2 publication Critical patent/JP5731326B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • 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
    • H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/0058—Quadrature arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/321—Use of a microprocessor in an amplifier circuit or its control circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
JP2011184921A 2011-08-26 2011-08-26 変調器およびそれを用いる増幅器 Expired - Fee Related JP5731326B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2011184921A JP5731326B2 (ja) 2011-08-26 2011-08-26 変調器およびそれを用いる増幅器
US13/529,570 US8648655B2 (en) 2011-08-26 2012-06-21 Modulator and an amplifier using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011184921A JP5731326B2 (ja) 2011-08-26 2011-08-26 変調器およびそれを用いる増幅器

Publications (3)

Publication Number Publication Date
JP2013048308A JP2013048308A (ja) 2013-03-07
JP2013048308A5 JP2013048308A5 (https=) 2015-04-30
JP5731326B2 true JP5731326B2 (ja) 2015-06-10

Family

ID=47742808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011184921A Expired - Fee Related JP5731326B2 (ja) 2011-08-26 2011-08-26 変調器およびそれを用いる増幅器

Country Status (2)

Country Link
US (1) US8648655B2 (https=)
JP (1) JP5731326B2 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5731325B2 (ja) * 2011-08-26 2015-06-10 富士通株式会社 変調器およびそれを用いる増幅器
US9800272B2 (en) * 2013-12-20 2017-10-24 Texas Instruments Incorporated Circuits and methods for transmitting signals
EP3206300B1 (en) 2016-02-09 2018-09-26 Nxp B.V. Outphasing amplifier
US11032113B2 (en) * 2018-09-25 2021-06-08 Qualcomm Incorporated Apparatus and methods for hybrid vector based polar modulator

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5990734A (en) * 1998-06-19 1999-11-23 Datum Telegraphic Inc. System and methods for stimulating and training a power amplifier during non-transmission events
US20020027958A1 (en) 2000-06-22 2002-03-07 Kolanek James C. Feedback channel signal recovery
US7260157B2 (en) 2002-11-21 2007-08-21 Sotoudeh Hamedi Hagh Phase shifted transmitter architecture for communication systems
JP4111003B2 (ja) 2003-02-27 2008-07-02 住友電気工業株式会社 Ｌｉｎｃ方式線形増幅器
US7260368B1 (en) 2003-04-07 2007-08-21 Intel Corporation Linear amplification with non-linear components (LINC) modulator and method for generating out-phased signals for a LINC transmitter
US7336753B2 (en) * 2003-06-26 2008-02-26 Marvell International Ltd. Transmitter
US8031804B2 (en) * 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US7724839B2 (en) * 2006-07-21 2010-05-25 Mediatek Inc. Multilevel LINC transmitter
WO2008047445A1 (fr) * 2006-10-20 2008-04-24 Panasonic Corporation Dispositif de transmission
WO2008090598A1 (ja) * 2007-01-22 2008-07-31 Panasonic Corporation 増幅装置
US7889811B2 (en) * 2007-09-06 2011-02-15 Samsung Electro-Mechanics Digital linear amplification with nonlinear components (LINC) transmitter
JP2009171460A (ja) 2008-01-18 2009-07-30 Sony Corp 通信装置、発振器、並びに周波数シンセサイザ
US20100074367A1 (en) 2008-09-19 2010-03-25 Samsung Electro-Mechanics Company, Ltd. Adaptive combiner error calibration algorithms in all-digital outphasing transmitter

Also Published As

Publication number Publication date
JP2013048308A (ja) 2013-03-07
US20130049861A1 (en) 2013-02-28
US8648655B2 (en) 2014-02-11

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