BR0006799A - Amplificador de potência multimodo eficiente e método de amplificar um sinal modulado - Google Patents

Amplificador de potência multimodo eficiente e método de amplificar um sinal modulado

Info

Publication number
BR0006799A
BR0006799A BR0006799-7A BR0006799A BR0006799A BR 0006799 A BR0006799 A BR 0006799A BR 0006799 A BR0006799 A BR 0006799A BR 0006799 A BR0006799 A BR 0006799A
Authority
BR
Brazil
Prior art keywords
amplifier
amplifying
communication mode
modulated signal
power amplifier
Prior art date
Application number
BR0006799-7A
Other languages
English (en)
Inventor
Gustavo D Leizerovich
Lawrence F Cygan
Original Assignee
Motorola Inc
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 Inc filed Critical Motorola Inc
Publication of BR0006799A publication Critical patent/BR0006799A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
    • 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
    • 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
    • H03F1/0261—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 polarisation voltage or current, e.g. gliding Class A
    • 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
    • H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0483—Transmitters with multiple parallel paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/045—Circuits with power amplifiers with means for improving efficiency

Abstract

<B>AMPLIFICADOR DE POTêNCIA MULTIMODO EFICIENTE E MéTODO DE AMPLIFICAR UM SINAL MODULADO<D> Aparelho amplificador para um dispositivo de comunicação móvel multimodo que inclui um amplificador de portadora (114) e um amplificador de pico (116). O amplificador de pico possui um nível de polarização ajustável e é ajustado por um regulador para um nível predeterminado, dependendo em qual modo de comunicação é selecionado. O nível de polarização no amplificador de pico é mantido constante enquanto o modo de comunicação for o mesmo. Justando-se o ponto de polarização do amplificador de pico em conjunto com a seleção do modo de comunicação, a eficiência e linearidade da modulação pode ser otimizada para um determinado modo de comunicação.
BR0006799-7A 1999-12-04 2000-11-29 Amplificador de potência multimodo eficiente e método de amplificar um sinal modulado BR0006799A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/455,813 US6374092B1 (en) 1999-12-04 1999-12-04 Efficient multimode power amplifier

Publications (1)

Publication Number Publication Date
BR0006799A true BR0006799A (pt) 2001-09-04

Family

ID=23810377

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0006799-7A BR0006799A (pt) 1999-12-04 2000-11-29 Amplificador de potência multimodo eficiente e método de amplificar um sinal modulado

Country Status (4)

Country Link
US (1) US6374092B1 (pt)
CN (1) CN100530949C (pt)
BR (1) BR0006799A (pt)
CA (1) CA2327137C (pt)

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US6864742B2 (en) * 2001-06-08 2005-03-08 Northrop Grumman Corporation Application of the doherty amplifier as a predistortion circuit for linearizing microwave amplifiers
US7151915B2 (en) * 2001-09-26 2006-12-19 Nokia Corporation Dual mode voltage controlled oscillator having controllable bias modes and power consumption
US6700444B2 (en) 2002-01-28 2004-03-02 Cree Microwave, Inc. N-way RF power amplifier with increased backoff power and power added efficiency
US6791417B2 (en) 2002-01-28 2004-09-14 Cree Microwave, Inc. N-way RF power amplifier circuit with increased back-off capability and power added efficiency using selected phase lengths and output impedances
US6737922B2 (en) 2002-01-28 2004-05-18 Cree Microwave, Inc. N-way RF power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division
KR100553252B1 (ko) * 2002-02-01 2006-02-20 아바고테크놀로지스코리아 주식회사 휴대용 단말기의 전력 증폭 장치
US6894561B2 (en) * 2002-09-20 2005-05-17 Triquint Semiconductor, Inc. Efficient power control of a power amplifier by periphery switching
US7728662B2 (en) * 2002-09-20 2010-06-01 Triquint Semiconductor, Inc. Saturated power amplifier with selectable and variable output power levels
US7345537B2 (en) * 2002-09-20 2008-03-18 Triquint Semiconductor, Inc. Linear power amplifier with multiple output power levels
JP3985649B2 (ja) * 2002-10-03 2007-10-03 松下電器産業株式会社 送信方法及び送信装置
US20040127173A1 (en) * 2002-12-30 2004-07-01 Motorola, Inc. Multiple mode transmitter
WO2006006119A1 (en) * 2004-07-08 2006-01-19 Koninklijke Philips Electronics N.V. Integrated doherty type amplifier arrangement with integrated feedback
KR20060032270A (ko) * 2004-10-11 2006-04-17 아바고테크놀로지스코리아 주식회사 능동 위상 보상기를 이용한 도허티 증폭기
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
CN100337409C (zh) * 2004-12-17 2007-09-12 华为技术有限公司 一种线性功放失真抵消的方法
JP2007053540A (ja) * 2005-08-17 2007-03-01 Nec Corp ドハティ型増幅器
US8013675B2 (en) 2007-06-19 2011-09-06 Parkervision, Inc. Combiner-less multiple input single output (MISO) amplification with blended control
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US8334722B2 (en) 2007-06-28 2012-12-18 Parkervision, Inc. Systems and methods of RF power transmission, modulation and amplification
US9106316B2 (en) 2005-10-24 2015-08-11 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification
US7831221B2 (en) * 2005-12-13 2010-11-09 Andrew Llc Predistortion system and amplifier for addressing group delay modulation
US7382194B2 (en) * 2006-01-18 2008-06-03 Triquint Semiconductor, Inc. Switched distributed power amplifier
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
US7937106B2 (en) 2006-04-24 2011-05-03 ParkerVision, Inc, Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
JP2008035487A (ja) * 2006-06-19 2008-02-14 Renesas Technology Corp Ｒｆ電力増幅器
WO2008144017A1 (en) 2007-05-18 2008-11-27 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
US7876160B2 (en) * 2008-02-04 2011-01-25 Skyworks Solutions, Inc. Multi-mode high efficiency linear power amplifier
US8315578B2 (en) * 2008-07-15 2012-11-20 Research In Motion Limited Mobile wireless communications device with separate in-phase and quadrature power amplification
SG184239A1 (en) 2010-03-24 2012-11-29 Agency Science Tech & Res A gm-ratioed amplifier
KR20140026458A (ko) 2011-04-08 2014-03-05 파커비전, 인크. Ｒｆ 전력 송신, 변조 및 증폭 시스템들 및 방법들
EP2715867A4 (en) 2011-06-02 2014-12-17 Parkervision Inc ANTENNA CONTROL
US8581662B2 (en) * 2011-09-27 2013-11-12 Harris Corporation Amplifying system
TWI492549B (zh) 2012-10-09 2015-07-11 Realtek Semiconductor Corp 多模式功率放大電路、多模式無線發射模組及其方法
CN103780209B (zh) * 2012-10-22 2017-04-12 瑞昱半导体股份有限公司 多模式功率放大电路、多模式无线发射模块及其方法
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CN109962686B (zh) * 2019-02-27 2023-03-21 宁波大学 一种双模式射频功率放大系统
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Also Published As

Publication number Publication date
CN1300132A (zh) 2001-06-20
CA2327137C (en) 2003-04-01
CA2327137A1 (en) 2001-06-04
CN100530949C (zh) 2009-08-19
US6374092B1 (en) 2002-04-16

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A10A E 11A ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2112 DE 28/06/2011.

B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS INC. (US)

Free format text: NOME ALTERADO DE: MOTOROLA, INC

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY INC (US)

Free format text: TRANSFERIDO DE: MOTOROLA SOLUTIONS INC.

B25H Request for change of headquarter rejected

Owner name: MOTOROLA MOBILITY INC (US)