FI972005A - Linear power amplifier device and method - Google Patents
Linear power amplifier device and method Download PDFInfo
- Publication number
- FI972005A FI972005A FI972005A FI972005A FI972005A FI 972005 A FI972005 A FI 972005A FI 972005 A FI972005 A FI 972005A FI 972005 A FI972005 A FI 972005A FI 972005 A FI972005 A FI 972005A
- Authority
- FI
- Finland
- Prior art keywords
- power amplifier
- amplifier device
- linear power
- linear
- power
- Prior art date
Links
Classifications
-
- 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
-
- 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
- H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
-
- 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
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode
-
- 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
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
-
- 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
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3252—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using multiple parallel paths between input and output
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
- H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
- H03F2201/3212—Using a control circuit to adjust amplitude and phase of a signal in a signal path
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR19960051910 | 1996-11-04 | ||
KR1019960051910A KR100217416B1 (en) | 1995-11-16 | 1996-11-04 | Linear amplifier and method thereof |
Publications (3)
Publication Number | Publication Date |
---|---|
FI972005A0 FI972005A0 (en) | 1997-05-12 |
FI972005A true FI972005A (en) | 1998-05-05 |
FI116339B FI116339B (en) | 2005-10-31 |
Family
ID=19480758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI972005A FI116339B (en) | 1996-11-04 | 1997-05-12 | Linear power amplifier and method |
Country Status (11)
Country | Link |
---|---|
JP (1) | JP3260295B2 (en) |
KR (1) | KR100217416B1 (en) |
AU (1) | AU698665B2 (en) |
BR (1) | BR9703140B1 (en) |
DE (1) | DE19720019B4 (en) |
FI (1) | FI116339B (en) |
FR (1) | FR2755551B1 (en) |
GB (1) | GB2318938B (en) |
IN (1) | IN192286B (en) |
NL (1) | NL1006031C2 (en) |
SE (1) | SE519812C2 (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6075411A (en) * | 1997-12-22 | 2000-06-13 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for wideband predistortion linearization |
US6339701B1 (en) * | 1998-06-17 | 2002-01-15 | Lucent Technologies, Inc. | Method and apparatus for extending the dynamic range of a frequency mixer |
US6363120B1 (en) | 1998-06-17 | 2002-03-26 | Lucent Technologies Inc. | Apparatus and method for extending the dynamic range of a mixer using feed forward distortion reduction |
US6097324A (en) * | 1998-06-17 | 2000-08-01 | Lucent Technologies Inc. | Method and apparatus for extending the spurious free dynamic range of an analog-to-digital converter |
EP1151531B1 (en) | 1999-02-12 | 2003-05-02 | Wireless Systems International Limited | Signal processing apparatus |
JP2001053552A (en) * | 1999-08-10 | 2001-02-23 | Nec Corp | Feed-forward amplifier circuit and method for compensating nonlinear distortion in the same |
US6392480B1 (en) * | 1999-08-19 | 2002-05-21 | Lucent Technologies Inc. | Alternating gain and phase control system and method |
GB2353646A (en) * | 1999-08-27 | 2001-02-28 | Matsushita Electric Ind Co Ltd | A multistage amplifier with multistage predistortion and a predistorter |
GB2354126B (en) | 1999-09-13 | 2004-07-21 | Wireless Systems Int Ltd | Signal processing |
GB2358748A (en) * | 2000-01-31 | 2001-08-01 | Wireless Systems Int Ltd | An arrangement in a predistortion or feedforward linearizer for an amplifier in which I and Q components are adjusted to achieve a desired phase and amplitude |
US6275106B1 (en) * | 2000-02-25 | 2001-08-14 | Spectrian Corporation | Spectral distortion monitor for controlling pre-distortion and feed-forward linearization of rf power amplifier |
WO2001099316A1 (en) * | 2000-06-16 | 2001-12-27 | Fujitsu Limited | Multi-carrier amplifier |
US6496064B2 (en) * | 2000-08-15 | 2002-12-17 | Eugene Rzyski | Intermodulation product cancellation circuit |
US6545487B1 (en) * | 2000-08-24 | 2003-04-08 | Lucent Technologies Inc. | System and method for producing an amplified signal with reduced distortion |
US6674324B1 (en) * | 2000-08-24 | 2004-01-06 | Lucent Technologies Inc. | System and method for producing an amplified signal using plurality of amplitudes across spectrum |
JP3850649B2 (en) | 2000-09-22 | 2006-11-29 | 株式会社日立国際電気 | Distortion compensation amplifier |
WO2002050997A1 (en) * | 2000-12-04 | 2002-06-27 | Matsushita Electric Industrial Co., Ltd. | Feedforward amplifier, communication apparatus, feedforward amplifying method, program and medium |
US7046972B2 (en) | 2001-04-10 | 2006-05-16 | Matsushita Electric Industrial Co., Ltd. | Predistortion linearizer and predistortion distortion compensation method, program, and medium |
KR100395502B1 (en) * | 2001-08-08 | 2003-08-25 | 한국전자통신연구원 | Adaptive Feedforward Linear Amplifier |
JP3502087B2 (en) * | 2002-05-14 | 2004-03-02 | 松下電器産業株式会社 | Hybrid distortion compensation method and hybrid distortion compensation device |
GB2395077A (en) * | 2002-11-01 | 2004-05-12 | N & L Ltd | An amplifier arrangement linearised by predistortion and feedforward; adaptive bias for improved efficiency; thermal overload protection |
KR100766201B1 (en) | 2005-11-09 | 2007-10-10 | 학교법인 포항공과대학교 | Apparatus and method for measuring phase change of rf power amplifier |
US10075137B2 (en) | 2014-05-23 | 2018-09-11 | Teko Telocom, S.r.l. | Power amplification system for radiofrequency communications |
CN106464617B (en) * | 2014-06-26 | 2020-01-31 | 华为技术有限公司 | interference elimination device and method |
CN106464616B (en) | 2014-06-26 | 2019-10-22 | 华为技术有限公司 | A kind of device and method that interference is eliminated |
KR102163050B1 (en) | 2015-03-12 | 2020-10-08 | 삼성전기주식회사 | Power amplifier and method for compensating phase in power amplifier |
US11038474B2 (en) | 2017-11-01 | 2021-06-15 | Analog Devices Global Unlimited Company | Phased array amplifier linearization |
CN109314896B (en) | 2018-09-04 | 2021-03-02 | 北京小米移动软件有限公司 | Cell switching method, device and readable storage medium |
KR102080202B1 (en) | 2019-08-23 | 2020-02-21 | 주식회사 패러다임 | Power Amplifier |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1495264A (en) * | 1975-02-19 | 1977-12-14 | Plessey Co Ltd | Amplifier arrangements |
US4879519A (en) * | 1988-10-31 | 1989-11-07 | American Telephone And Telegraph Company, At&T Bell Labs | Predistortion compensated linear amplifier |
US4885551A (en) * | 1988-10-31 | 1989-12-05 | American Telephone And Telegraph Company At&T Bell Laboratories | Feed forward linear amplifier |
US4943783A (en) * | 1989-07-31 | 1990-07-24 | Nippon Telegraph And Telephone Corporation | Feed forward distortion correction circuit |
GB2238196A (en) * | 1989-11-16 | 1991-05-22 | Motorola Inc | Feed forward amplifier with pre-distortion |
US4987378A (en) * | 1989-11-28 | 1991-01-22 | General Electric Company | Feedforward predistortion linearizer |
US5023565A (en) * | 1990-01-26 | 1991-06-11 | At&T Bell Laboratories | Linear amplifier with automatic adjustment of feed forward loop gain and phase |
GB9009295D0 (en) * | 1990-04-25 | 1990-06-20 | Kenington Peter B | Apparatus and method for reducing distortion in amplification |
US5130663A (en) * | 1991-04-15 | 1992-07-14 | Motorola, Inc. | Feed forward amplifier network with frequency swept pilot tone |
US5570063A (en) * | 1995-05-18 | 1996-10-29 | Spectrian, Inc. | RF power amplifier with signal predistortion for improved linearity |
-
1996
- 1996-11-04 KR KR1019960051910A patent/KR100217416B1/en not_active IP Right Cessation
-
1997
- 1997-05-12 NL NL1006031A patent/NL1006031C2/en not_active IP Right Cessation
- 1997-05-12 AU AU20148/97A patent/AU698665B2/en not_active Ceased
- 1997-05-12 FI FI972005A patent/FI116339B/en not_active IP Right Cessation
- 1997-05-13 BR BRPI9703140-2A patent/BR9703140B1/en not_active IP Right Cessation
- 1997-05-13 SE SE9701760A patent/SE519812C2/en unknown
- 1997-05-13 DE DE19720019A patent/DE19720019B4/en not_active Expired - Fee Related
- 1997-05-13 JP JP12186997A patent/JP3260295B2/en not_active Expired - Fee Related
- 1997-05-13 GB GB9709622A patent/GB2318938B/en not_active Expired - Fee Related
- 1997-05-13 FR FR9705823A patent/FR2755551B1/en not_active Expired - Fee Related
- 1997-09-05 IN IN841CA1997 patent/IN192286B/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE19720019A1 (en) | 1998-05-14 |
FR2755551A1 (en) | 1998-05-07 |
SE519812C2 (en) | 2003-04-15 |
AU2014897A (en) | 1998-05-07 |
GB2318938A (en) | 1998-05-06 |
FR2755551B1 (en) | 2001-09-07 |
NL1006031A1 (en) | 1998-05-08 |
GB2318938B (en) | 1999-07-28 |
BR9703140A (en) | 1998-11-10 |
JP3260295B2 (en) | 2002-02-25 |
FI116339B (en) | 2005-10-31 |
FI972005A0 (en) | 1997-05-12 |
DE19720019B4 (en) | 2006-04-06 |
AU698665B2 (en) | 1998-11-05 |
BR9703140B1 (en) | 2011-04-05 |
IN192286B (en) | 2004-03-27 |
GB9709622D0 (en) | 1997-07-02 |
SE9701760L (en) | 1998-05-05 |
SE9701760D0 (en) | 1997-05-13 |
JPH10190361A (en) | 1998-07-21 |
KR100217416B1 (en) | 1999-09-01 |
KR970031238A (en) | 1997-06-26 |
NL1006031C2 (en) | 1999-06-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Ref document number: 116339 Country of ref document: FI |
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MM | Patent lapsed |