WO2009025021A1 - Transmission circuit, wireless base station device, and wireless terminal device - Google Patents

Transmission circuit, wireless base station device, and wireless terminal device Download PDF

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Publication number
WO2009025021A1
WO2009025021A1 PCT/JP2007/066105 JP2007066105W WO2009025021A1 WO 2009025021 A1 WO2009025021 A1 WO 2009025021A1 JP 2007066105 W JP2007066105 W JP 2007066105W WO 2009025021 A1 WO2009025021 A1 WO 2009025021A1
Authority
WO
WIPO (PCT)
Prior art keywords
quadrature
transmission circuit
modulated
signals
modulation
Prior art date
Application number
PCT/JP2007/066105
Other languages
French (fr)
Japanese (ja)
Inventor
Kazuhiko Takeyama
Takashi Enoki
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to JP2009528895A priority Critical patent/JPWO2009025021A1/en
Priority to PCT/JP2007/066105 priority patent/WO2009025021A1/en
Publication of WO2009025021A1 publication Critical patent/WO2009025021A1/en

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
    • H03F1/0294—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
    • 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
    • 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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier

Abstract

A highly efficient (low consumption power), compact and inexpensive transmission circuit capable of supporting a plurality of frequencies. When a fundamental frequency is set, the transmission circuit (100) carries out LINC amplification, wherein a modulation signal generating part (110) inputs input baseband signals (Si,Sq) to a constant envelope signal generating part (111) and generates a first constant envelope signal (Sωa1) and a second constant envelope signal (Sωa2) with which the input signals (Si,Sq) are equivalent to signals quadrature-modulated by a carrier signal of a frequency (ωa) when vector-synthesized and outputs them to analog circuit parts (120,130), respectively. On the other hand, when a frequency other than the fundamental frequency is set, the transmission circuit works as a quadrature modulation amplifier in which the modulation signal generating part (110) inputs the base band signals (Si,Sq) to a quadrature modulation part (112), and outputs the quadrature-modulated signal quadrature-modulated in the part (112) respectively to the analog circuit parts (120,130).
PCT/JP2007/066105 2007-08-20 2007-08-20 Transmission circuit, wireless base station device, and wireless terminal device WO2009025021A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009528895A JPWO2009025021A1 (en) 2007-08-20 2007-08-20 Transmission circuit, radio base station apparatus, and radio terminal apparatus
PCT/JP2007/066105 WO2009025021A1 (en) 2007-08-20 2007-08-20 Transmission circuit, wireless base station device, and wireless terminal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/066105 WO2009025021A1 (en) 2007-08-20 2007-08-20 Transmission circuit, wireless base station device, and wireless terminal device

Publications (1)

Publication Number Publication Date
WO2009025021A1 true WO2009025021A1 (en) 2009-02-26

Family

ID=40377932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/066105 WO2009025021A1 (en) 2007-08-20 2007-08-20 Transmission circuit, wireless base station device, and wireless terminal device

Country Status (2)

Country Link
JP (1) JPWO2009025021A1 (en)
WO (1) WO2009025021A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102223153A (en) * 2010-04-15 2011-10-19 捷讯研究有限公司 Communications device with separate I and Q phase power amplification and related methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006203673A (en) * 2005-01-21 2006-08-03 Matsushita Electric Ind Co Ltd Transmission amplifier circuit
JP2006203854A (en) * 2004-12-21 2006-08-03 Renesas Technology Corp Transmitter and mobile communications terminal using same
JP2006314087A (en) * 2005-04-08 2006-11-16 Matsushita Electric Ind Co Ltd Amplifier circuit and radio equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006203854A (en) * 2004-12-21 2006-08-03 Renesas Technology Corp Transmitter and mobile communications terminal using same
JP2006203673A (en) * 2005-01-21 2006-08-03 Matsushita Electric Ind Co Ltd Transmission amplifier circuit
JP2006314087A (en) * 2005-04-08 2006-11-16 Matsushita Electric Ind Co Ltd Amplifier circuit and radio equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102223153A (en) * 2010-04-15 2011-10-19 捷讯研究有限公司 Communications device with separate I and Q phase power amplification and related methods
JP2011229148A (en) * 2010-04-15 2011-11-10 Research In Motion Ltd Communications device with i and q phase power amplification having selective phase and magnitude adjustment and related methods

Also Published As

Publication number Publication date
JPWO2009025021A1 (en) 2010-11-18

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