IT1286348B1 - Amplificatore di potenza lineare con polarizzazione attiva ad alto rendimento e relativo metodo di amplificazione. - Google Patents
Amplificatore di potenza lineare con polarizzazione attiva ad alto rendimento e relativo metodo di amplificazione.Info
- Publication number
- IT1286348B1 IT1286348B1 IT96RM000704A ITRM960704A IT1286348B1 IT 1286348 B1 IT1286348 B1 IT 1286348B1 IT 96RM000704 A IT96RM000704 A IT 96RM000704A IT RM960704 A ITRM960704 A IT RM960704A IT 1286348 B1 IT1286348 B1 IT 1286348B1
- Authority
- IT
- Italy
- Prior art keywords
- power amplifier
- high efficiency
- amplification method
- linear power
- active polarization
- Prior art date
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
- H03F1/02—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
- 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
- H03F1/0211—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 supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from the input signal
-
- 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
- H03F1/0277—Selecting one or more amplifiers from a plurality of 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
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Microwave Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/566,811 US5739723A (en) | 1995-12-04 | 1995-12-04 | Linear power amplifier using active bias for high efficiency and method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
ITRM960704A1 ITRM960704A1 (it) | 1998-04-18 |
IT1286348B1 true IT1286348B1 (it) | 1998-07-08 |
Family
ID=24264474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT96RM000704A IT1286348B1 (it) | 1995-12-04 | 1996-10-18 | Amplificatore di potenza lineare con polarizzazione attiva ad alto rendimento e relativo metodo di amplificazione. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5739723A (it) |
JP (1) | JP3372438B2 (it) |
CN (1) | CN1152212A (it) |
BR (1) | BR9605569A (it) |
IT (1) | IT1286348B1 (it) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6188298B1 (en) * | 1998-12-30 | 2001-02-13 | Square D Company | Winding transient suppression technique |
KR100362925B1 (ko) * | 1999-03-31 | 2002-11-29 | 가부시키가이샤 엔.티.티.도코모 | 피드포워드 증폭기 |
US6374092B1 (en) * | 1999-12-04 | 2002-04-16 | Motorola, Inc. | Efficient multimode power amplifier |
DE19959406A1 (de) * | 1999-12-09 | 2001-06-13 | Rohde & Schwarz | 90 DEG -Leistungsteiler |
US6300835B1 (en) | 1999-12-10 | 2001-10-09 | Motorola, Inc. | Power amplifier core |
US6313705B1 (en) | 1999-12-20 | 2001-11-06 | Rf Micro Devices, Inc. | Bias network for high efficiency RF linear power amplifier |
US6825719B1 (en) | 2000-05-26 | 2004-11-30 | Intel Corporation | RF power amplifier and methods for improving the efficiency thereof |
SE516145C2 (sv) * | 2000-06-06 | 2001-11-26 | Ericsson Telefon Ab L M | Sammansatt förstärkare |
US6731173B1 (en) * | 2000-10-23 | 2004-05-04 | Skyworks Solutions, Inc. | Doherty bias circuit to dynamically compensate for process and environmental variations |
US6472937B1 (en) | 2000-11-15 | 2002-10-29 | Conexant Systems, Inc. | Bias enhancement circuit for linear amplifiers |
US6587511B2 (en) * | 2001-01-26 | 2003-07-01 | Intel Corporation | Radio frequency transmitter and methods thereof |
US6469581B1 (en) | 2001-06-08 | 2002-10-22 | Trw Inc. | HEMT-HBT doherty microwave amplifier |
US6864742B2 (en) * | 2001-06-08 | 2005-03-08 | Northrop Grumman Corporation | Application of the doherty amplifier as a predistortion circuit for linearizing microwave amplifiers |
US6917246B2 (en) * | 2001-09-10 | 2005-07-12 | Skyworks Solutions, Inc. | Doherty bias circuit to dynamically compensate for process and environmental variations |
US20030123566A1 (en) * | 2001-12-27 | 2003-07-03 | Jaime Hasson | Transmitter having a sigma-delta modulator with a non-uniform polar quantizer and methods thereof |
US20030125065A1 (en) * | 2001-12-27 | 2003-07-03 | Ilan Barak | Method and apparatus for generating an output signal |
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 |
GB2393866A (en) * | 2002-09-06 | 2004-04-07 | Filtronic Plc | A class F Doherty amplifier using PHEMTs |
JP2004221646A (ja) * | 2003-01-09 | 2004-08-05 | Nec Corp | ドハ−ティ増幅器 |
US7038539B2 (en) * | 2003-05-06 | 2006-05-02 | Powerwave Technologies, Inc. | RF amplifier employing active load linearization |
US7336753B2 (en) * | 2003-06-26 | 2008-02-26 | Marvell International Ltd. | Transmitter |
DE112004001976T5 (de) * | 2003-10-21 | 2006-10-19 | Wavics, Inc., Palo Alto | Hochlinearität-Doherty-Kommunikationsverstärker mit Vorspannungssteuerung |
US7912145B2 (en) * | 2003-12-15 | 2011-03-22 | Marvell World Trade Ltd. | Filter for a modulator and methods thereof |
US7356315B2 (en) * | 2003-12-17 | 2008-04-08 | Intel Corporation | Outphasing modulators and methods of outphasing modulation |
US7064615B2 (en) * | 2004-03-24 | 2006-06-20 | Freescale Semiconductor, Inc. | Method and apparatus for doherty amplifier biasing |
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 |
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 |
US7362170B2 (en) * | 2005-12-01 | 2008-04-22 | Andrew Corporation | High gain, high efficiency power amplifier |
US7831221B2 (en) * | 2005-12-13 | 2010-11-09 | Andrew Llc | Predistortion system and amplifier for addressing group delay modulation |
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 |
JP4831571B2 (ja) | 2006-05-02 | 2011-12-07 | 富士通株式会社 | 増幅器ユニット及びその故障検出方法 |
JP4283294B2 (ja) * | 2006-09-20 | 2009-06-24 | 株式会社日立国際電気 | ドハティ増幅器 |
US20080219246A1 (en) * | 2007-03-08 | 2008-09-11 | Northrop Grumman Space And Mission Systems Corp. | System and method for switching using coordinated phase shifters |
WO2008144017A1 (en) | 2007-05-18 | 2008-11-27 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
WO2009005768A1 (en) | 2007-06-28 | 2009-01-08 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
US20090231186A1 (en) * | 2008-02-06 | 2009-09-17 | Raysat Broadcasting Corp. | Compact electronically-steerable mobile satellite antenna system |
WO2009145887A1 (en) | 2008-05-27 | 2009-12-03 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
KR20140026458A (ko) | 2011-04-08 | 2014-03-05 | 파커비전, 인크. | Rf 전력 송신, 변조 및 증폭 시스템들 및 방법들 |
KR20140034895A (ko) | 2011-06-02 | 2014-03-20 | 파커비전, 인크. | 안테나 제어 |
WO2015042142A1 (en) | 2013-09-17 | 2015-03-26 | Parkervision, Inc. | Method, apparatus and system for rendering an information bearing function of time |
US9419561B2 (en) | 2014-04-09 | 2016-08-16 | Qualcomm, Incorporated | Circuits and methods for biasing a power amplifier |
US9806681B2 (en) * | 2015-02-15 | 2017-10-31 | Skyworks Solutions, Inc. | Doherty power amplifier having AM-AM compensation |
KR102069634B1 (ko) * | 2018-07-05 | 2020-01-23 | 삼성전기주식회사 | 선형성 보상기능을 갖는 다단 파워 증폭 장치 |
CN113395045A (zh) * | 2021-05-31 | 2021-09-14 | 锐石创芯(深圳)科技有限公司 | 多尔蒂功率放大器、***及控制方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5420541A (en) * | 1993-06-04 | 1995-05-30 | Raytheon Company | Microwave doherty amplifier |
US5541554A (en) * | 1995-03-06 | 1996-07-30 | Motorola, Inc. | Multi-mode power amplifier |
-
1995
- 1995-12-04 US US08/566,811 patent/US5739723A/en not_active Expired - Lifetime
-
1996
- 1996-09-19 CN CN96119936A patent/CN1152212A/zh active Pending
- 1996-10-18 IT IT96RM000704A patent/IT1286348B1/it active IP Right Grant
- 1996-11-14 BR BR9605569A patent/BR9605569A/pt not_active Application Discontinuation
- 1996-12-03 JP JP33890496A patent/JP3372438B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP3372438B2 (ja) | 2003-02-04 |
CN1152212A (zh) | 1997-06-18 |
JPH09181533A (ja) | 1997-07-11 |
ITRM960704A1 (it) | 1998-04-18 |
BR9605569A (pt) | 1998-08-18 |
US5739723A (en) | 1998-04-14 |
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Legal Events
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0001 | Granted |