BR9900530A - Amplificador de faixa duplas. - Google Patents

Amplificador de faixa duplas.

Info

Publication number
BR9900530A
BR9900530A BR9900530-1A BR9900530A BR9900530A BR 9900530 A BR9900530 A BR 9900530A BR 9900530 A BR9900530 A BR 9900530A BR 9900530 A BR9900530 A BR 9900530A
Authority
BR
Brazil
Prior art keywords
amplifier
signals
stage
dual range
range amplifier
Prior art date
Application number
BR9900530-1A
Other languages
English (en)
Inventor
Thomas Dominic Nagode
Rashid Masood Osmani
Aamir Ali Abbasi
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 BR9900530A publication Critical patent/BR9900530A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7239—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers and shunting lines by one or more switch(es)

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)

Abstract

<B>AMPLIFICADOR DE FAIXA DUPLA<D>. Um amplificador (104) para um dispositivo de faixa dupla inclui múltiplos estágios amplificadores acoplados entre uma entrada (103) e saída (105). Os estágios amplificadores incluem um primeiro amplificador (200) tendo um primeiro amplificador (206), um segundo estágio amplificador (202) tendo um segundo amplificador, e um terceiro estágio amplificador (204) tendo um terceiro amplificador (210). Uma primeira derivação (218) no referido primeiro estágio amplificador fornece uma derivação para sinais em uma primeira faixa de frequência. Uma segunda derivação (250) é fornecida no terceiro estágio amplificador, a segunda derivação para fornecer para sinais em uma segunda faixa de frequência, uma trajetória de sinal que deriva o terceiro amplificador. Os sinais nas primeira e segunda faixas de frequência são amplificados pelo segundo amplificador.
BR9900530-1A 1998-02-04 1999-02-04 Amplificador de faixa duplas. BR9900530A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/018,671 US6043721A (en) 1998-02-04 1998-02-04 Dual band amplifier

Publications (1)

Publication Number Publication Date
BR9900530A true BR9900530A (pt) 2000-01-18

Family

ID=21789185

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9900530-1A BR9900530A (pt) 1998-02-04 1999-02-04 Amplificador de faixa duplas.

Country Status (5)

Country Link
US (1) US6043721A (pt)
KR (1) KR100294174B1 (pt)
CN (1) CN1164026C (pt)
BR (1) BR9900530A (pt)
GB (1) GB2334168B (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6078794A (en) * 1997-02-19 2000-06-20 Motorola, Inc. Impedance matching for a dual band power amplifier
US6384688B1 (en) * 1998-07-08 2002-05-07 Hitachi, Ltd. High-frequency power amplifier module
US6304748B1 (en) * 1998-09-23 2001-10-16 Conexant Systems, Inc. Transmitter circuitry for a cellular phone
DE19845054A1 (de) * 1998-09-30 2000-04-06 Siemens Ag Empfangsfrequenzbandfilterung
US6560297B1 (en) * 1999-06-03 2003-05-06 Analog Devices, Inc. Image rejection downconverter for a translation loop modulator
JP2001177433A (ja) * 1999-12-21 2001-06-29 Murata Mfg Co Ltd 高周波複合部品及び移動体通信装置
US6658265B1 (en) * 2000-04-25 2003-12-02 Rf Micro Devices, Inc. Matching network for a dual mode RF amplifier
WO2002015397A2 (en) * 2000-08-16 2002-02-21 Maxim Integrated Products, Inc. Low-loss bypass mode of an amplifier with high linearity and matched impedance
US6885855B1 (en) * 2000-10-10 2005-04-26 Adc Telecommunications, Inc. High frequency amplification circuit
US6960959B2 (en) * 2000-12-15 2005-11-01 Matsushita Electric Industrial Co., Ltd. Power amplifier and communication apparatus
DE10133862A1 (de) 2001-07-12 2003-02-06 Kathrein Werke Kg Verstärkerumschaltung
US6819941B2 (en) 2001-10-11 2004-11-16 Rf Micro Devices, Inc. Single output stage power amplification for multimode applications
US6680647B2 (en) * 2001-12-13 2004-01-20 Agilent Technologies, Inc. Low noise amplifier circuit with phase matched switch topology
US7039377B2 (en) * 2002-06-14 2006-05-02 Skyworks Solutions, Inc. Switchable gain amplifier
KR100501919B1 (ko) * 2002-09-06 2005-07-18 주식회사 보이스웨어 2개의 증폭기를 구비한 음성인식기 및 그 음성인식 방법
US7339809B2 (en) * 2004-11-30 2008-03-04 The Boeing Company Systems and methods for electrical power regulation and distribution in aircraft
US20070024377A1 (en) * 2005-07-28 2007-02-01 Xuezhen Wang Impedance matching techiques for multi-band or wideband RF amplifiers and associated amplifier designs
US7616054B2 (en) * 2007-01-09 2009-11-10 Avago Technologies Wireless Ip (Singapore) Pte. Ltd. Multiple output power mode amplifier
US20090236420A1 (en) * 2008-03-18 2009-09-24 Meadwestvaco Corporation Smart shelf tote device for multiple different products
GB2530424B (en) 2008-11-18 2016-05-04 Nujira Ltd Power Supply Arrangement For Multi-Stage Amplifier
US7982543B1 (en) 2009-03-30 2011-07-19 Triquint Semiconductor, Inc. Switchable power amplifier
US8207798B1 (en) 2009-09-09 2012-06-26 Triquint Semiconductor, Inc. Matching network with switchable capacitor bank

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI75962C (fi) * 1982-03-30 1988-08-08 Rca Corp Avstaemningssystem foer en flerbandig televisionsmottagare.
JPH06103809B2 (ja) * 1988-06-10 1994-12-14 三菱電機株式会社 増幅回路
US5060294A (en) * 1990-07-05 1991-10-22 Motorola, Inc. Dual mode power amplifier for radiotelephone
GB2251147B (en) * 1990-10-01 1994-10-26 Motorola Inc Filter switching circuit
JPH0583153A (ja) * 1991-09-19 1993-04-02 Toshiba Corp 広帯域同調回路
US5661434A (en) * 1995-05-12 1997-08-26 Fujitsu Compound Semiconductor, Inc. High efficiency multiple power level amplifier circuit
JPH10303762A (ja) * 1997-04-24 1998-11-13 Matsushita Electric Ind Co Ltd 送信回路
KR100238954B1 (ko) * 1997-05-29 2000-06-01 정명식 다중 주파수 대역 초고주파 증폭기

Also Published As

Publication number Publication date
GB2334168B (en) 2002-06-05
US6043721A (en) 2000-03-28
CN1234647A (zh) 1999-11-10
KR100294174B1 (ko) 2001-06-15
GB9902392D0 (en) 1999-03-24
GB2334168A (en) 1999-08-11
KR19990072431A (ko) 1999-09-27
CN1164026C (zh) 2004-08-25

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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 7A, 8A E 9A 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: REFERENTE AO DESPACHO PUBLICADO NA RPI 1962 DE 12/08/2008.

B15K Others concerning applications: alteration of classification

Ipc: H03F 3/193 (2006.01), H03F 3/72 (2006.0