BR0316211A - Amplificador de driver de radiofrequência de ganho variável continuamente que possui caracterìsticas de controle de ganho linear em decibéis - Google Patents

Amplificador de driver de radiofrequência de ganho variável continuamente que possui caracterìsticas de controle de ganho linear em decibéis

Info

Publication number
BR0316211A
BR0316211A BR0316211-7A BR0316211A BR0316211A BR 0316211 A BR0316211 A BR 0316211A BR 0316211 A BR0316211 A BR 0316211A BR 0316211 A BR0316211 A BR 0316211A
Authority
BR
Brazil
Prior art keywords
driver amplifier
current
features
radio frequency
input voltage
Prior art date
Application number
BR0316211-7A
Other languages
English (en)
Inventor
Kenneth Barnett
Brett C Walker
Kevin Gard
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 BR0316211A publication Critical patent/BR0316211A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • 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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • 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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/301—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in MOSFET amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/04—Modifications of control circuit to reduce distortion caused by control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/001—Volume compression or expansion in amplifiers without controlling loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Transmitters (AREA)

Abstract

"AMPLIFICADOR DE DRIVER DE RADIOFREQuêNCIA DE GANHO VARIáVEL CONTINUAMENTE QUE POSSUI CARACTERìSTICAS DE CONTROLE DE GANHO LINEAR EM DECIBéIS". são providos um método e um sistema de amplificador de driver de radiofreq³ência (RF) que provêem controle de ganho linear em decibéis. O sistema amplificador de driver de RF compreende um transcondutor linear que recebe uma tensão de alimentação e provê uma corrente controlada com base na tensão de alimentação recebida, circuitos de compensação de temperatura para variar a corrente proveniente do transcondutor linear de acordo com a temperatura absoluta, um controlador de corrente exponencial que recebe corrente variada de acordo com a temperatura e provê uma corrente exponencial em resposta e um compensador indutivo de degeneração recebendo corrente exponencial e provendo circuitos de controle de corrente. A corrente de controle passa do compensador indutivo de degeneração para os circuitos do amplificador de driver. O ganho de saída dos circuitos do amplificador de driver varia linearmente em decibéis com relação à tensão de alimentação.
BR0316211-7A 2002-11-13 2003-11-12 Amplificador de driver de radiofrequência de ganho variável continuamente que possui caracterìsticas de controle de ganho linear em decibéis BR0316211A (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US42615402P 2002-11-13 2002-11-13
US47631103P 2003-06-06 2003-06-06
US10/700,860 US6906592B2 (en) 2002-11-13 2003-11-03 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics
PCT/US2003/036231 WO2004045226A2 (en) 2002-11-13 2003-11-12 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics

Publications (1)

Publication Number Publication Date
BR0316211A true BR0316211A (pt) 2005-09-27

Family

ID=32314893

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0316211-7A BR0316211A (pt) 2002-11-13 2003-11-12 Amplificador de driver de radiofrequência de ganho variável continuamente que possui caracterìsticas de controle de ganho linear em decibéis

Country Status (11)

Country Link
US (2) US6906592B2 (pt)
EP (1) EP1568236B1 (pt)
JP (2) JP2006517751A (pt)
KR (1) KR20050075391A (pt)
CN (1) CN1714505B (pt)
AT (1) ATE453244T1 (pt)
AU (1) AU2003290822A1 (pt)
BR (1) BR0316211A (pt)
DE (1) DE60330707D1 (pt)
MX (1) MXPA05005190A (pt)
WO (1) WO2004045226A2 (pt)

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US7593701B2 (en) * 2006-04-24 2009-09-22 Icera Canada ULC Low noise CMOS transmitter circuit with high range of gain
JP4887131B2 (ja) * 2006-12-18 2012-02-29 パナソニック株式会社 電力増幅器
US8086207B2 (en) * 2007-03-19 2011-12-27 Qualcomm Incorporated Linear transconductor for RF communications
JP5001822B2 (ja) * 2007-12-26 2012-08-15 旭化成エレクトロニクス株式会社 バイアス回路、差動増幅器
KR101101501B1 (ko) * 2008-11-14 2012-01-03 삼성전기주식회사 온도 보상 기능을 개선한 증폭 회로
KR101101541B1 (ko) 2010-03-23 2012-01-02 삼성전기주식회사 증폭 제어 회로
CN103872992B (zh) * 2012-12-10 2017-02-08 环旭电子股份有限公司 电子系统、射频功率放大器及其输出功率补偿方法
CN103326704A (zh) * 2013-06-24 2013-09-25 杭州电子科技大学 一种磁控忆阻器等效电路
DE102015213981A1 (de) * 2015-07-24 2017-01-26 Conti Temic Microelectronic Gmbh Detektion eines Fremdkörpers in einem elektromagnetischen Feld, insbesondere mit Hilfe eines NFC Chips
CN109417366B (zh) * 2016-06-28 2021-01-29 华为技术有限公司 dB线性可变增益放大器
CN110971204B (zh) * 2018-09-29 2023-12-15 广东新岸线科技有限公司 一种无线通信接收机增益稳定方法

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Also Published As

Publication number Publication date
AU2003290822A8 (en) 2004-06-03
US20040155708A1 (en) 2004-08-12
DE60330707D1 (de) 2010-02-04
AU2003290822A1 (en) 2004-06-03
EP1568236B1 (en) 2009-12-23
WO2004045226A3 (en) 2004-10-07
CN1714505A (zh) 2005-12-28
CN1714505B (zh) 2010-05-26
EP1568236A2 (en) 2005-08-31
MXPA05005190A (es) 2005-08-18
US7106138B2 (en) 2006-09-12
JP2010273360A (ja) 2010-12-02
JP2006517751A (ja) 2006-07-27
US20060038617A1 (en) 2006-02-23
WO2004045226A2 (en) 2004-05-27
ATE453244T1 (de) 2010-01-15
KR20050075391A (ko) 2005-07-20
US6906592B2 (en) 2005-06-14

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B04C Request for examination: application reinstated [chapter 4.3 patent gazette]
B08L Patent application lapsed because of non payment of annual fee [chapter 8.12 patent gazette]

Free format text: REFERENTE AO NAO RECOLHIMENTO DAS 9A E 10A ANUIDADES.

B08I Publication cancelled [chapter 8.9 patent gazette]

Free format text: ANULADA A PUBLICACAO CODIGO 8.12 NA RPI NO 2257 DE 08/04/2014 POR TER SIDO INDEVIDA.

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

Free format text: REFERENTE AS 9A, 10A, 11A, 12A, 13A, 14A, 15A E 16A ANUIDADES.

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: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2602 DE 17-11-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.