CA2527628A1 - Forward amplifiers - Google Patents
Forward amplifiers Download PDFInfo
- Publication number
- CA2527628A1 CA2527628A1 CA002527628A CA2527628A CA2527628A1 CA 2527628 A1 CA2527628 A1 CA 2527628A1 CA 002527628 A CA002527628 A CA 002527628A CA 2527628 A CA2527628 A CA 2527628A CA 2527628 A1 CA2527628 A1 CA 2527628A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- feed
- output
- intermodulation
- input
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000004044 response Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000012937 correction Methods 0.000 description 11
- 230000032683 aging Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- H03F1/32—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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39108402P | 2002-06-25 | 2002-06-25 | |
| US60/391,084 | 2002-06-25 | ||
| PCT/US2003/019849 WO2004001956A2 (en) | 2002-06-25 | 2003-06-25 | Forward amplifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2527628A1 true CA2527628A1 (en) | 2003-12-31 |
Family
ID=30000669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002527628A Abandoned CA2527628A1 (en) | 2002-06-25 | 2003-06-25 | Forward amplifiers |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7342446B2 (enExample) |
| EP (1) | EP1552605A4 (enExample) |
| JP (1) | JP2005531224A (enExample) |
| CN (1) | CN100472948C (enExample) |
| AU (1) | AU2003247621B2 (enExample) |
| CA (1) | CA2527628A1 (enExample) |
| MX (1) | MXPA05000247A (enExample) |
| WO (1) | WO2004001956A2 (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4652974B2 (ja) * | 2005-12-27 | 2011-03-16 | 富士通株式会社 | タイミング調整装置及びタイミング調整方法 |
| US11036262B1 (en) | 2008-01-14 | 2021-06-15 | Micro Mobio Corporation | Radio frequency power amplifier with adjacent channel leakage correction circuit |
| US9088258B2 (en) * | 2008-01-14 | 2015-07-21 | Micro Mobio Corporation | RF power amplifier with linearity control |
| US10938360B1 (en) | 2011-10-26 | 2021-03-02 | Micro Mobio Corporation | Multimode multiband wireless device with broadband power amplifier |
| EP3311497B1 (en) | 2015-06-16 | 2021-08-04 | Commscope Technologies LLC | Radio frequency transmitter |
| US11515617B1 (en) | 2019-04-03 | 2022-11-29 | Micro Mobio Corporation | Radio frequency active antenna system in a package |
| US12463322B1 (en) | 2019-04-03 | 2025-11-04 | Micro Mobio Corporation | Antenna in display |
| US20250219602A1 (en) * | 2023-12-29 | 2025-07-03 | Analog Devices International Unlimited Company | Power amplifier system with interference cancellation |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5077532A (en) * | 1990-12-17 | 1991-12-31 | Motorola, Inc. | Feed forward distortion minimization circuit |
| US5485120A (en) * | 1994-07-28 | 1996-01-16 | Aval Communications Inc. | Feed-forward power amplifier system with adaptive control and control method |
| US5570063A (en) | 1995-05-18 | 1996-10-29 | Spectrian, Inc. | RF power amplifier with signal predistortion for improved linearity |
| US6078216A (en) * | 1998-03-31 | 2000-06-20 | Spectrian Corporation | Aliased wide band performance monitor for adjusting predistortion and vector modulator control parameters of RF amplifier |
| 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 |
| IL125022A (en) * | 1998-06-21 | 2001-09-13 | Israel Bar David | Methods and apparatus for adaptive adjustment of feed-forward linearized amplifiers |
| US6104241A (en) | 1998-11-18 | 2000-08-15 | Spectrian | High efficiency feed-forward RF power amplifier with predistoration enchancement |
| US6392480B1 (en) * | 1999-08-19 | 2002-05-21 | Lucent Technologies Inc. | Alternating gain and phase control system and method |
| US6211733B1 (en) * | 1999-10-22 | 2001-04-03 | Powerwave Technologies, Inc. | Predistortion compensation for a power amplifier |
| JP2001136033A (ja) * | 1999-11-05 | 2001-05-18 | Nec Corp | フィードフォワード増幅器 |
| CN1164025C (zh) * | 2000-07-29 | 2004-08-25 | 华为技术有限公司 | 利用导频的前馈线性功率放大方法及装置 |
| US6819173B2 (en) * | 2001-04-19 | 2004-11-16 | Motorola, Inc. | Method and apparatus for reduction of distortion in a transmitter |
-
2003
- 2003-06-25 US US10/519,191 patent/US7342446B2/en not_active Expired - Fee Related
- 2003-06-25 EP EP03761291A patent/EP1552605A4/en active Pending
- 2003-06-25 CA CA002527628A patent/CA2527628A1/en not_active Abandoned
- 2003-06-25 JP JP2004516186A patent/JP2005531224A/ja active Pending
- 2003-06-25 MX MXPA05000247A patent/MXPA05000247A/es active IP Right Grant
- 2003-06-25 WO PCT/US2003/019849 patent/WO2004001956A2/en not_active Ceased
- 2003-06-25 AU AU2003247621A patent/AU2003247621B2/en not_active Ceased
- 2003-06-25 CN CNB03815000XA patent/CN100472948C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003247621A1 (en) | 2004-01-06 |
| US20050174173A1 (en) | 2005-08-11 |
| EP1552605A2 (en) | 2005-07-13 |
| WO2004001956A3 (en) | 2005-04-28 |
| AU2003247621B2 (en) | 2008-05-22 |
| EP1552605A4 (en) | 2007-05-30 |
| CN1663116A (zh) | 2005-08-31 |
| US7342446B2 (en) | 2008-03-11 |
| CN100472948C (zh) | 2009-03-25 |
| WO2004001956A2 (en) | 2003-12-31 |
| JP2005531224A (ja) | 2005-10-13 |
| MXPA05000247A (es) | 2005-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |