BRPI0406900A - Amplificador de baixo ruìdo de alta linearidade - Google Patents

Amplificador de baixo ruìdo de alta linearidade

Info

Publication number
BRPI0406900A
BRPI0406900A BR0406900-5A BRPI0406900A BRPI0406900A BR PI0406900 A BRPI0406900 A BR PI0406900A BR PI0406900 A BRPI0406900 A BR PI0406900A BR PI0406900 A BRPI0406900 A BR PI0406900A
Authority
BR
Brazil
Prior art keywords
amplifier
lna
linearity
auxiliary
auxiliary amplifier
Prior art date
Application number
BR0406900-5A
Other languages
English (en)
Inventor
Bo Sun
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BRPI0406900A publication Critical patent/BRPI0406900A/pt

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
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)

Abstract

"AMPLIFICADOR DE BAIXO RUìDO DE ALTA LINEARIDADE". Um esquema de cancelamento de não-linearidade de alimentação é utilizado para aperfeiçoar a linearidade de um amplificador de baixo ruído (LNA) . Um LNA incorpora um amplificador principal e um amplificador auxiliar acoplados para receberem a mesma entrada. As saídas do amplificador principal e do amplificador auxiliar também são acopladas. O amplificador auxiliar pode ser implementado como um amplificador auxiliar de potência muito baixa, tendo uma linearidade muito baixa. A saída do amplificador auxiliar contém produtos de intermodulação de terceira ordem (IM3) que são de amplitudes similar, porém de fase oposta em relação aos produtos IM3 gerados pelo amplificador principal. Com as saídas do amplificador principal e do amplificador auxiliar acopladas, os seus respectivos produtos IM3 são somados e efetivamente se cancelam. Como resultado, a saída do LNA contém substancialmente nenhum produto IM3, e a linearidade do LNA é substancialmente aperfeiçoada.
BR0406900-5A 2003-01-24 2004-01-21 Amplificador de baixo ruìdo de alta linearidade BRPI0406900A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/351,132 US6781467B2 (en) 2003-01-24 2003-01-24 High linearity low noise amplifier
PCT/US2004/001642 WO2004068700A2 (en) 2003-01-24 2004-01-21 High linearity low noise amplifier

Publications (1)

Publication Number Publication Date
BRPI0406900A true BRPI0406900A (pt) 2005-12-13

Family

ID=32735733

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0406900-5A BRPI0406900A (pt) 2003-01-24 2004-01-21 Amplificador de baixo ruìdo de alta linearidade

Country Status (5)

Country Link
US (1) US6781467B2 (pt)
KR (1) KR20050094880A (pt)
BR (1) BRPI0406900A (pt)
IL (1) IL169826A0 (pt)
WO (1) WO2004068700A2 (pt)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003223389A1 (en) * 2003-03-27 2004-11-23 Ess Technology, Inc. High speed high gain amplifier
JP2006067381A (ja) * 2004-08-27 2006-03-09 Matsushita Electric Ind Co Ltd トランジスタ集積回路装置
US7263342B2 (en) * 2004-08-30 2007-08-28 Wilinx, Inc. High frequency wireless receiver circuits and methods
US7403758B2 (en) * 2005-10-04 2008-07-22 Freescale Semicondutor, Inc. Linearized and balanced mixer apparatus and signal mixing method
US7372335B2 (en) * 2005-10-21 2008-05-13 Wilinx, Inc. Wideband circuits and methods
US7851940B2 (en) * 2005-11-01 2010-12-14 Allegro Microsystems, Inc. Methods and apparatus for DC-DC converter having independent outputs
US7783272B2 (en) * 2006-06-29 2010-08-24 Microtune (Texas), L.P. Dynamic performance control of broadband tuner
US7711334B2 (en) * 2007-03-23 2010-05-04 Newport Media, Inc. High linearity, low noise figure, front end circuit with fine step gain control
KR101400862B1 (ko) * 2007-09-19 2014-05-28 삼성전자주식회사 무선통신시스템에서 저잡음 증폭 장치 및 방법
US7696828B2 (en) 2008-01-04 2010-04-13 Qualcomm, Incorporated Multi-linearity mode LNA having a deboost current path
GB0807149D0 (en) * 2008-04-18 2008-05-21 Elonics Ltd Low noise amplifier
JP5088235B2 (ja) * 2008-05-26 2012-12-05 富士通株式会社 ノイズキャンセル回路及びノイズキャンセル回路付き増幅器
US8149955B2 (en) * 2008-06-30 2012-04-03 Telefonaktiebolaget L M Ericsson (Publ) Single ended multiband feedback linearized RF amplifier and mixer with DC-offset and IM2 suppression feedback loop
EP2157691A1 (en) * 2008-08-20 2010-02-24 ST-Ericsson Belgium NV Signal generation with cancelled harmonics
US8175566B2 (en) * 2009-06-04 2012-05-08 Qualcomm, Incorporated Multiple multi-mode low-noise amplifier receiver with shared degenerative inductors
WO2011052855A1 (ko) * 2009-10-28 2011-05-05 (주)에이스테크놀로지 저잡음 증폭기 및 저잡음 증폭기 집적회로 장치
US10136944B2 (en) 2013-10-15 2018-11-27 Autonomix Medical, Inc. Systems and methods for treating cancer and/or augmenting organ function
EP4070750A1 (en) 2013-10-15 2022-10-12 Autonomix Medical, Inc. Systems and methods for treating cancer and/or augmenting organ function
US9231529B2 (en) 2013-12-16 2016-01-05 Motorola Solutions, Inc. Switchable multi-output low-noise amplifier with distortion cancellation
EP2913922A1 (en) 2014-02-28 2015-09-02 Telefonaktiebolaget L M Ericsson (publ) A low noise amplifier circuit
US10848112B2 (en) * 2015-10-30 2020-11-24 Qatar Founation for Education, Science, and Community Development Low noise amplifier
CN109643973B (zh) * 2016-08-25 2022-05-13 华为技术有限公司 集成放大器
US9866184B1 (en) * 2016-09-28 2018-01-09 International Business Machines Corporation Degenerated transimpedance amplifier with wire-bonded photodiode for reducing group delay distortion
US10008987B1 (en) 2016-12-16 2018-06-26 Qualcomm Incorporated Switch and matching noise cancelling for switch low noise amplifier
KR101952875B1 (ko) * 2017-08-24 2019-05-23 삼성전기주식회사 전력 증폭기 및 이를 포함하는 집적회로
US11546006B2 (en) 2018-06-01 2023-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Mitigation of intermodulation distortion

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418981A1 (fr) * 1978-03-03 1979-09-28 Lignes Telegraph Telephon Circuit d'amplification pour telecommunication en hyperfrequence
US5347388A (en) * 1989-12-01 1994-09-13 Scientific-Atlanta, Inc. Push-pull optical receiver having gain control
US5508657A (en) * 1995-01-30 1996-04-16 Aml Communications, Inc. Feed forward cancellation amplifier utilizing dynamic vector control
US5966048A (en) * 1997-11-25 1999-10-12 Hughes Electronics Corporation Low IMD amplification method and apparatus
US6175279B1 (en) * 1997-12-09 2001-01-16 Qualcomm Incorporated Amplifier with adjustable bias current
US6107878A (en) * 1998-08-06 2000-08-22 Qualcomm Incorporated Automatic gain control circuit for controlling multiple variable gain amplifier stages while estimating received signal power
GB2371697A (en) * 2001-01-24 2002-07-31 Mitel Semiconductor Ltd Scaled current sinks for a cross-coupled low-intermodulation RF amplifier
US6359513B1 (en) * 2001-01-31 2002-03-19 U.S. Philips Corporation CMOS power amplifier with reduced harmonics and improved efficiency

Also Published As

Publication number Publication date
WO2004068700A9 (en) 2009-04-30
WO2004068700A2 (en) 2004-08-12
KR20050094880A (ko) 2005-09-28
WO2004068700A3 (en) 2004-11-04
US6781467B2 (en) 2004-08-24
IL169826A0 (en) 2007-07-04
US20040145415A1 (en) 2004-07-29

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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 8A ANUIDADE.

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 2159 DE 22/05/2012.