CA2315583C - Alternating gain and phase control system and method - Google Patents
Alternating gain and phase control system and method Download PDFInfo
- Publication number
- CA2315583C CA2315583C CA002315583A CA2315583A CA2315583C CA 2315583 C CA2315583 C CA 2315583C CA 002315583 A CA002315583 A CA 002315583A CA 2315583 A CA2315583 A CA 2315583A CA 2315583 C CA2315583 C CA 2315583C
- Authority
- CA
- Canada
- Prior art keywords
- gain
- adjustment
- phase
- previous
- error signal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 19
- 230000004044 response Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 abstract description 25
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 19
- 230000009467 reduction Effects 0.000 description 13
- 230000006872 improvement Effects 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/04—Modifications of control circuit to reduce distortion caused by control
-
- 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
- H03F1/3235—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction using a pilot signal
-
- 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
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Feedback Control In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/378,009 US6392480B1 (en) | 1999-08-19 | 1999-08-19 | Alternating gain and phase control system and method |
| US09/378,009 | 1999-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2315583A1 CA2315583A1 (en) | 2001-02-19 |
| CA2315583C true CA2315583C (en) | 2005-02-08 |
Family
ID=23491363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002315583A Expired - Fee Related CA2315583C (en) | 1999-08-19 | 2000-08-08 | Alternating gain and phase control system and method |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6392480B1 (enExample) |
| EP (1) | EP1079516B1 (enExample) |
| JP (1) | JP2001119249A (enExample) |
| KR (1) | KR20010021355A (enExample) |
| CN (1) | CN100452643C (enExample) |
| AU (1) | AU765299B2 (enExample) |
| BR (1) | BR0003387B1 (enExample) |
| CA (1) | CA2315583C (enExample) |
| DE (1) | DE60043683D1 (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6411644B1 (en) * | 1998-09-29 | 2002-06-25 | Lucent Technologies Inc. | Frequency hop pilot technique for a control system that reduces distortion produced by electrical circuits |
| JP2003110369A (ja) * | 2001-09-27 | 2003-04-11 | Hitachi Kokusai Electric Inc | 歪み補償増幅装置 |
| EP1552605A4 (en) * | 2002-06-25 | 2007-05-30 | Soma Networks Inc | AMPLIFIERS WITH DOWNSTREAM CORRECTION |
| US6882217B1 (en) | 2002-09-27 | 2005-04-19 | 3Com Corporation | Cubic spline predistortion, algorithm and training, for a wireless LAN system |
| US7274750B1 (en) | 2002-09-27 | 2007-09-25 | 3Com Corporation | Gain and phase imbalance compensation for OFDM systems |
| US9473275B2 (en) | 2013-11-13 | 2016-10-18 | Mediatek Singapore Pte. Ltd. | Gain asymmetry characterizing circuit and method for determining characteristics of gain asymmetry possessed by transmitter |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04275708A (ja) * | 1991-03-01 | 1992-10-01 | Nippon Telegr & Teleph Corp <Ntt> | 非線形歪補償回路 |
| US5477187A (en) | 1992-03-19 | 1995-12-19 | Fujitsu Limited | Feed forward amplifier |
| US5365190A (en) * | 1993-05-03 | 1994-11-15 | Duly Research, Inc. | Feed-forward digital phase and amplitude correction system |
| US5485120A (en) * | 1994-07-28 | 1996-01-16 | Aval Communications Inc. | Feed-forward power amplifier system with adaptive control and control method |
| US5610554A (en) * | 1994-07-28 | 1997-03-11 | Aval Communications Inc. | Cancellation loop, for a feed-forward amplifier, employing an adaptive controller |
| US5455537A (en) * | 1994-08-19 | 1995-10-03 | Radio Frequency Systems, Inc. | Feed forward amplifier |
| JP3361657B2 (ja) * | 1995-07-20 | 2003-01-07 | 松下電器産業株式会社 | フィードフォワード増幅器の制御装置および制御方法 |
| KR100217416B1 (ko) | 1995-11-16 | 1999-09-01 | 윤종용 | 선형 증폭 장치 및 방법 |
| US5789976A (en) * | 1996-06-17 | 1998-08-04 | Corporation De L'ecole Polytechnique | Digital adaptive control of feedforward amplifier using frequency domain cancellation |
| US5847603A (en) * | 1997-07-31 | 1998-12-08 | Lucent Technologies Inc. | Automatic control system for reducing distortion produced by electrical circuits |
| US5999048A (en) * | 1998-01-13 | 1999-12-07 | Lucent Technologies Inc. | Method and apparatus for spread spectrum pilot extraction for RF amplifiers |
| US5929704A (en) * | 1998-02-20 | 1999-07-27 | Spectrian | Control of RF error extraction using auto-calibrating RF correlator |
| US5963091A (en) * | 1998-04-01 | 1999-10-05 | Chen; Jiunn-Tsair | Article comprising a power amplifier with feed forward linearizer using a RLS parameter tracking algorithm |
| JP2000004124A (ja) * | 1998-06-17 | 2000-01-07 | Nec Corp | フィードフォワード増幅器 |
| US6211733B1 (en) * | 1999-10-22 | 2001-04-03 | Powerwave Technologies, Inc. | Predistortion compensation for a power amplifier |
-
1999
- 1999-08-19 US US09/378,009 patent/US6392480B1/en not_active Expired - Lifetime
-
2000
- 2000-08-07 DE DE60043683T patent/DE60043683D1/de not_active Expired - Lifetime
- 2000-08-07 EP EP00306694A patent/EP1079516B1/en not_active Expired - Lifetime
- 2000-08-08 BR BRPI0003387-1B1A patent/BR0003387B1/pt not_active IP Right Cessation
- 2000-08-08 CA CA002315583A patent/CA2315583C/en not_active Expired - Fee Related
- 2000-08-09 JP JP2000240717A patent/JP2001119249A/ja not_active Abandoned
- 2000-08-11 AU AU51968/00A patent/AU765299B2/en not_active Ceased
- 2000-08-18 KR KR1020000047856A patent/KR20010021355A/ko not_active Ceased
- 2000-08-18 CN CNB001241664A patent/CN100452643C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001119249A (ja) | 2001-04-27 |
| CA2315583A1 (en) | 2001-02-19 |
| CN1289177A (zh) | 2001-03-28 |
| DE60043683D1 (de) | 2010-03-04 |
| EP1079516A2 (en) | 2001-02-28 |
| CN100452643C (zh) | 2009-01-14 |
| US6392480B1 (en) | 2002-05-21 |
| EP1079516A3 (en) | 2001-10-31 |
| BR0003387A (pt) | 2001-04-03 |
| AU765299B2 (en) | 2003-09-11 |
| AU5196800A (en) | 2001-02-22 |
| EP1079516B1 (en) | 2010-01-13 |
| KR20010021355A (ko) | 2001-03-15 |
| BR0003387B1 (pt) | 2013-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180808 |