IN192286B - - Google Patents
Info
- Publication number
- IN192286B IN192286B IN841CA1997A IN192286B IN 192286 B IN192286 B IN 192286B IN 841CA1997 A IN841CA1997 A IN 841CA1997A IN 192286 B IN192286 B IN 192286B
- Authority
- IN
- India
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
-
- 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
- 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
- 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960051910A KR100217416B1 (ko) | 1995-11-16 | 1996-11-04 | 선형 증폭 장치 및 방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN192286B true IN192286B (it) | 2004-03-27 |
Family
ID=19480758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN841CA1997 IN192286B (it) | 1996-11-04 | 1997-09-05 |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JP3260295B2 (it) |
| KR (1) | KR100217416B1 (it) |
| AU (1) | AU698665B2 (it) |
| BR (1) | BR9703140B1 (it) |
| DE (1) | DE19720019B4 (it) |
| FI (1) | FI116339B (it) |
| FR (1) | FR2755551B1 (it) |
| GB (1) | GB2318938B (it) |
| IN (1) | IN192286B (it) |
| NL (1) | NL1006031C2 (it) |
| SE (1) | SE519812C2 (it) |
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 |
| 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 |
| 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 |
| DE60002437T2 (de) | 1999-02-12 | 2004-04-01 | Wireless Systems International Ltd. | Signalverarbeitungsvorrichtung |
| JP2001053552A (ja) * | 1999-08-10 | 2001-02-23 | Nec Corp | フィードフォワード増幅回路、及びフィードフォワード増幅回路における非線形歪の補償方法。 |
| 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 |
| 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 |
| US6545487B1 (en) | 2000-08-24 | 2003-04-08 | Lucent Technologies Inc. | System and method for producing an amplified signal with reduced distortion |
| JP3850649B2 (ja) * | 2000-09-22 | 2006-11-29 | 株式会社日立国際電気 | 歪補償増幅器 |
| EP1353438B1 (en) * | 2000-12-04 | 2008-08-06 | Matsushita Electric Industrial Co., Ltd. | Feedforward amplifier, communication apparatus, feedforward amplifying method, program and medium |
| EP1249930A3 (en) * | 2001-04-10 | 2004-06-02 | Matsushita Electric Industrial Co., Ltd. | Predistortion linearizer and predistortion compensation method and program |
| KR100395502B1 (ko) * | 2001-08-08 | 2003-08-25 | 한국전자통신연구원 | 적응형 피드포워드 선형 증폭 장치 |
| JP3502087B2 (ja) * | 2002-05-14 | 2004-03-02 | 松下電器産業株式会社 | ハイブリッド歪補償方法およびハイブリッド歪補償装置 |
| 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 (ko) | 2005-11-09 | 2007-10-10 | 학교법인 포항공과대학교 | 알에프 전력 증폭기의 위상 변화 측정 장치 및 그 방법 |
| EP3146630B1 (en) | 2014-05-23 | 2020-01-15 | Teko Telecom S.r.l. | Power amplification system for radiofrequency communications |
| SG11201610674QA (en) | 2014-06-26 | 2017-02-27 | Huawei Tech Co Ltd | Interference cancellation apparatus and method |
| EP3139556B1 (en) | 2014-06-26 | 2018-10-03 | Huawei Technologies Co., Ltd. | Interference cancellation device and method |
| KR102163050B1 (ko) | 2015-03-12 | 2020-10-08 | 삼성전기주식회사 | 전력 증폭기 및 전력 증폭기의 위상 보정 방법 |
| US11038474B2 (en) | 2017-11-01 | 2021-06-15 | Analog Devices Global Unlimited Company | Phased array amplifier linearization |
| US11974178B2 (en) | 2018-09-04 | 2024-04-30 | Beijing Xiaomi Mobile Software Co., Ltd. | Cell handover method, device and readable storage medium |
| KR102080202B1 (ko) | 2019-08-23 | 2020-02-21 | 주식회사 패러다임 | 선형 전력 증폭 장치 |
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/ko not_active IP Right Cessation
-
1997
- 1997-05-12 AU AU20148/97A patent/AU698665B2/en not_active Ceased
- 1997-05-12 NL NL1006031A patent/NL1006031C2/nl not_active IP Right Cessation
- 1997-05-12 FI FI972005A patent/FI116339B/fi not_active IP Right Cessation
- 1997-05-13 SE SE9701760A patent/SE519812C2/sv unknown
- 1997-05-13 JP JP12186997A patent/JP3260295B2/ja not_active Expired - Fee Related
- 1997-05-13 DE DE19720019A patent/DE19720019B4/de not_active Expired - Fee Related
- 1997-05-13 GB GB9709622A patent/GB2318938B/en not_active Expired - Fee Related
- 1997-05-13 BR BRPI9703140-2A patent/BR9703140B1/pt not_active IP Right Cessation
- 1997-05-13 FR FR9705823A patent/FR2755551B1/fr not_active Expired - Fee Related
- 1997-09-05 IN IN841CA1997 patent/IN192286B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB9709622D0 (en) | 1997-07-02 |
| SE519812C2 (sv) | 2003-04-15 |
| KR970031238A (ko) | 1997-06-26 |
| FI972005A (fi) | 1998-05-05 |
| FR2755551B1 (fr) | 2001-09-07 |
| NL1006031C2 (nl) | 1999-06-17 |
| FR2755551A1 (fr) | 1998-05-07 |
| JP3260295B2 (ja) | 2002-02-25 |
| AU2014897A (en) | 1998-05-07 |
| KR100217416B1 (ko) | 1999-09-01 |
| GB2318938A (en) | 1998-05-06 |
| DE19720019B4 (de) | 2006-04-06 |
| JPH10190361A (ja) | 1998-07-21 |
| AU698665B2 (en) | 1998-11-05 |
| BR9703140B1 (pt) | 2011-04-05 |
| FI116339B (fi) | 2005-10-31 |
| SE9701760L (sv) | 1998-05-05 |
| SE9701760D0 (sv) | 1997-05-13 |
| FI972005A0 (fi) | 1997-05-12 |
| NL1006031A1 (nl) | 1998-05-08 |
| GB2318938B (en) | 1999-07-28 |
| BR9703140A (pt) | 1998-11-10 |
| DE19720019A1 (de) | 1998-05-14 |