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
Links
- 230000009977 dual effect Effects 0.000 title abstract 3
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.
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)
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)
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 |
-
1998
- 1998-02-04 US US09/018,671 patent/US6043721A/en not_active Expired - Lifetime
-
1999
- 1999-02-04 BR BR9900530-1A patent/BR9900530A/pt not_active IP Right Cessation
- 1999-02-04 KR KR1019990003835A patent/KR100294174B1/ko not_active IP Right Cessation
- 1999-02-04 GB GB9902392A patent/GB2334168B/en not_active Expired - Fee Related
- 1999-02-04 CN CNB991017625A patent/CN1164026C/zh not_active Expired - Fee Related
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 |