AU2002223881A1 - Lineariser - Google Patents
LineariserInfo
- Publication number
- AU2002223881A1 AU2002223881A1 AU2002223881A AU2388102A AU2002223881A1 AU 2002223881 A1 AU2002223881 A1 AU 2002223881A1 AU 2002223881 A AU2002223881 A AU 2002223881A AU 2388102 A AU2388102 A AU 2388102A AU 2002223881 A1 AU2002223881 A1 AU 2002223881A1
- Authority
- AU
- Australia
- Prior art keywords
- lineariser
- transistor
- amplifier
- input
- linear gain
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
- H03F3/602—Combinations of several 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
- H03F1/3205—Modifications of amplifiers to reduce non-linear distortion in field-effect transistor amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Fax Reproducing Arrangements (AREA)
- Inorganic Insulating Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention relates to a lineariser for use with an amplifier. The lineariser comprises an input means and an output means. Input matching means are provided to receive an input signal. A transistor is provided, said transistor being arranged to operate substantially close to a switched on condition. The transistor is arranged to apply a non-linear gain to said input signal. The output means output the non-linear gain signal to said amplifier. The lineariser may be used with a RF power amplifier. The lineariser may be used in elements of a communication system.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0028713 | 2000-11-24 | ||
GBGB0028713.6A GB0028713D0 (en) | 2000-11-24 | 2000-11-24 | Lineariser |
PCT/GB2001/005180 WO2002043241A1 (en) | 2000-11-24 | 2001-11-23 | Lineariser |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2002223881A1 true AU2002223881A1 (en) | 2002-06-03 |
Family
ID=9903833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2002223881A Abandoned AU2002223881A1 (en) | 2000-11-24 | 2001-11-23 | Lineariser |
Country Status (8)
Country | Link |
---|---|
US (1) | US7057464B2 (en) |
EP (1) | EP1254509B1 (en) |
AT (1) | ATE353490T1 (en) |
AU (1) | AU2002223881A1 (en) |
DE (1) | DE60126477T2 (en) |
ES (1) | ES2280434T3 (en) |
GB (1) | GB0028713D0 (en) |
WO (1) | WO2002043241A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7557654B2 (en) * | 2004-10-28 | 2009-07-07 | Mitsubishi Electric Corporation | Linearizer |
WO2009130544A1 (en) * | 2008-04-22 | 2009-10-29 | Freescale Semiconductor, Inc. | Wireless communication unit and semiconductor device having a power amplifier therefor |
US7782134B2 (en) * | 2008-09-09 | 2010-08-24 | Quantance, Inc. | RF power amplifier system with impedance modulation |
US8018277B2 (en) * | 2008-09-09 | 2011-09-13 | Quantance, Inc. | RF power amplifier system with impedance modulation |
US8217723B2 (en) * | 2009-11-05 | 2012-07-10 | Texas Instruments Incorporated | Low noise amplifier circuit |
US8659359B2 (en) * | 2010-04-22 | 2014-02-25 | Freescale Semiconductor, Inc. | RF power transistor circuit |
US9281283B2 (en) | 2012-09-12 | 2016-03-08 | Freescale Semiconductor, Inc. | Semiconductor devices with impedance matching-circuits |
WO2014176401A1 (en) | 2013-04-24 | 2014-10-30 | Purdue Research Foundation | Band-reconfigurable and load-adaptive power amplifier |
CN103841754B (en) * | 2014-02-21 | 2017-01-18 | 宇龙计算机通信科技(深圳)有限公司 | Electronic device avoiding electromagnetic interference |
US9438184B2 (en) | 2014-06-27 | 2016-09-06 | Freescale Semiconductor, Inc. | Integrated passive device assemblies for RF amplifiers, and methods of manufacture thereof |
US10432152B2 (en) | 2015-05-22 | 2019-10-01 | Nxp Usa, Inc. | RF amplifier output circuit device with integrated current path, and methods of manufacture thereof |
US9571044B1 (en) | 2015-10-21 | 2017-02-14 | Nxp Usa, Inc. | RF power transistors with impedance matching circuits, and methods of manufacture thereof |
US9692363B2 (en) | 2015-10-21 | 2017-06-27 | Nxp Usa, Inc. | RF power transistors with video bandwidth circuits, and methods of manufacture thereof |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5816802B2 (en) * | 1978-04-17 | 1983-04-02 | ケイディディ株式会社 | Nonlinear compensation circuit for high frequency amplifier |
US4465980A (en) * | 1982-09-23 | 1984-08-14 | Rca Corporation | Predistortion circuit for a power amplifier |
US4532477A (en) * | 1983-12-23 | 1985-07-30 | At&T Bell Laboratories | Distortion compensation for a microwave amplifier |
US4564816A (en) * | 1984-05-09 | 1986-01-14 | Rca Corporation | Predistortion circuit |
FR2576725B1 (en) * | 1985-01-25 | 1988-07-08 | Thomson Csf | CLASS AB AMPLIFIER AND ITS DISTORTION CORRECTOR |
IT1239472B (en) * | 1990-04-09 | 1993-11-02 | Sits Soc It Telecom Siemens | LINEARIZER OF THE PRE-DISTORTION TYPE FOR MICROWAVE POWER AMPLIFIERS |
US5051705A (en) * | 1990-07-10 | 1991-09-24 | Pacific Monolithics | Gain-tilt amplifier |
US5276406A (en) * | 1992-02-13 | 1994-01-04 | Trontech, Inc. | Low noise wide dynamic range amplifiers |
JPH05315865A (en) * | 1992-05-13 | 1993-11-26 | Hitachi Ltd | Broadband amplifier |
US5815038A (en) * | 1995-04-28 | 1998-09-29 | Mitsubishi Denki Kabushiki Kaisha | Distortion compensation circuit |
US5982236A (en) * | 1997-01-21 | 1999-11-09 | Matsushita Electric Industrial Co., Ltd. | High-frequency power amplifier |
US6441689B1 (en) * | 2001-01-11 | 2002-08-27 | Nokia Networks Oy | Transistor amplifier providing improved linear and return loss performance characteristics |
-
2000
- 2000-11-24 GB GBGB0028713.6A patent/GB0028713D0/en not_active Ceased
-
2001
- 2001-11-23 WO PCT/GB2001/005180 patent/WO2002043241A1/en active IP Right Grant
- 2001-11-23 US US10/399,941 patent/US7057464B2/en not_active Expired - Fee Related
- 2001-11-23 DE DE60126477T patent/DE60126477T2/en not_active Expired - Lifetime
- 2001-11-23 EP EP01997890A patent/EP1254509B1/en not_active Expired - Lifetime
- 2001-11-23 AU AU2002223881A patent/AU2002223881A1/en not_active Abandoned
- 2001-11-23 ES ES01997890T patent/ES2280434T3/en not_active Expired - Lifetime
- 2001-11-23 AT AT01997890T patent/ATE353490T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB0028713D0 (en) | 2001-01-10 |
US20040012444A1 (en) | 2004-01-22 |
DE60126477D1 (en) | 2007-03-22 |
EP1254509A1 (en) | 2002-11-06 |
WO2002043241A1 (en) | 2002-05-30 |
DE60126477T2 (en) | 2007-09-13 |
EP1254509B1 (en) | 2007-02-07 |
US7057464B2 (en) | 2006-06-06 |
ATE353490T1 (en) | 2007-02-15 |
ES2280434T3 (en) | 2007-09-16 |
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