AU2002212394A1 - Linearization method and amplifier arrangement - Google Patents
Linearization method and amplifier arrangementInfo
- Publication number
- AU2002212394A1 AU2002212394A1 AU2002212394A AU1239402A AU2002212394A1 AU 2002212394 A1 AU2002212394 A1 AU 2002212394A1 AU 2002212394 A AU2002212394 A AU 2002212394A AU 1239402 A AU1239402 A AU 1239402A AU 2002212394 A1 AU2002212394 A1 AU 2002212394A1
- Authority
- AU
- Australia
- Prior art keywords
- amplifier arrangement
- amplifier
- signal
- output signal
- linearization method
- 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
- 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
-
- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
- H03F1/0266—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A by using a signal derived from the input signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/462—Indexing scheme relating to amplifiers the current being sensed
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/99—A diode as rectifier being used as a detecting circuit in an amplifying circuit
Abstract
The invention relates to a linearization method and an amplifier arrangement for linearizing an amplifier ( 50 ) amplifying an RF signal with a variable envelope. The amplifier arrangement comprises a sampling device ( 20 ) for sampling an RF signal to be amplified. The amplifier arrangement further comprises a control device ( 30 ) arranged to generate, using samples, an output signal changing its value according to the envelope shape of the RF signal to be amplified. The amplifier arrangement further comprises an adjusting device ( 40 ) arranged to adjust, using the output signal, the bias current of the amplifier such that the magnitude of the output signal and the magnitude of the bias current change in the same direction.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20002396 | 2000-10-31 | ||
FI20002396A FI114666B (en) | 2000-10-31 | 2000-10-31 | Linearization method and amplifier arrangement |
PCT/FI2001/000947 WO2002037670A1 (en) | 2000-10-31 | 2001-10-30 | Linearization method and amplifier arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2002212394A1 true AU2002212394A1 (en) | 2002-05-15 |
Family
ID=8559409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2002212394A Abandoned AU2002212394A1 (en) | 2000-10-31 | 2001-10-30 | Linearization method and amplifier arrangement |
Country Status (7)
Country | Link |
---|---|
US (1) | US6970041B2 (en) |
EP (1) | EP1340314B1 (en) |
AT (1) | ATE348445T1 (en) |
AU (1) | AU2002212394A1 (en) |
DE (1) | DE60125230T2 (en) |
FI (1) | FI114666B (en) |
WO (1) | WO2002037670A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6684064B2 (en) * | 2000-03-29 | 2004-01-27 | Interdigital Technology Corp. | Dynamic bias for RF power amplifiers |
US6791418B2 (en) * | 2002-10-02 | 2004-09-14 | Koninklijke Philips Electronics N.V. | Capacitor coupled dynamic bias boosting circuit for a power amplifier |
EP1576727A1 (en) | 2002-12-16 | 2005-09-21 | Koninklijke Philips Electronics N.V. | Sliding bias circuit for enabling dynamic control of quiescent current in a linear power amplifier |
KR20050104652A (en) * | 2004-04-29 | 2005-11-03 | 삼성에스디아이 주식회사 | Electron emission display device and driving method thereof |
JP5298203B2 (en) | 2008-12-10 | 2013-09-25 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | Token-based correlation of control sessions for data session policy and charging control via NAT |
US8391806B2 (en) * | 2011-01-04 | 2013-03-05 | Research In Motion Limited | Wireless communications device with an adjustable impedance matching network and associated methods |
CN105763164A (en) * | 2014-12-16 | 2016-07-13 | 沈阳中科微电子有限公司 | Radio frequency power amplifier circuit |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4462004A (en) * | 1982-03-18 | 1984-07-24 | At&T Bell Laboratories | Dynamic class-4 FET amplifier |
US4591800A (en) * | 1984-10-01 | 1986-05-27 | Motorola, Inc. | Linear power amplifier feedback improvement |
GB8828635D0 (en) | 1988-12-08 | 1989-01-11 | Hewlett Packard Co | Rf amplifier bias circuit |
JPH03198512A (en) * | 1989-12-27 | 1991-08-29 | Mitsubishi Electric Corp | High frequency amplifier |
US5420536A (en) * | 1993-03-16 | 1995-05-30 | Victoria University Of Technology | Linearized power amplifier |
FR2708399B1 (en) * | 1993-06-30 | 1995-08-25 | Alcatel Telspace | Amplifier polarization control system. |
US5426641A (en) * | 1994-01-28 | 1995-06-20 | Bell Communications Research, Inc. | Adaptive class AB amplifier for TDMA wireless communications systems |
US5712593A (en) * | 1996-02-05 | 1998-01-27 | Motorola, Inc. | Linear power amplifier with distortion detection |
US5936464A (en) * | 1997-11-03 | 1999-08-10 | Motorola, Inc. | Method and apparatus for reducing distortion in a high efficiency power amplifier |
IT1297358B1 (en) * | 1997-12-24 | 1999-09-01 | Cit Alcatel | HIGH PERFORMANCE LINEAR POWER AMPLIFICATION CIRCUIT FOR SIGNALS WITH HIGH RELATIONSHIP BETWEEN PEAK POWER AND AVERAGE POWER. |
GB2345212B (en) | 1997-12-31 | 2000-11-29 | Motorola Inc | Device having a tracking power converter for providing a linear power amplifier |
US6008698A (en) * | 1998-05-18 | 1999-12-28 | Omnipoint Corporation | Amplifier with dynamically adaptable supply current |
US6107880A (en) * | 1998-08-06 | 2000-08-22 | Motorola, Inc. | Method and apparatus for increasing the linearity of the phase and gain of a power amplifier circuit |
US6043707A (en) * | 1999-01-07 | 2000-03-28 | Motorola, Inc. | Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier |
-
2000
- 2000-10-31 FI FI20002396A patent/FI114666B/en not_active IP Right Cessation
-
2001
- 2001-10-30 AT AT01980580T patent/ATE348445T1/en not_active IP Right Cessation
- 2001-10-30 AU AU2002212394A patent/AU2002212394A1/en not_active Abandoned
- 2001-10-30 WO PCT/FI2001/000947 patent/WO2002037670A1/en active IP Right Grant
- 2001-10-30 EP EP01980580A patent/EP1340314B1/en not_active Expired - Lifetime
- 2001-10-30 DE DE60125230T patent/DE60125230T2/en not_active Expired - Lifetime
- 2001-10-30 US US10/415,331 patent/US6970041B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FI20002396A0 (en) | 2000-10-31 |
WO2002037670A1 (en) | 2002-05-10 |
US20040012443A1 (en) | 2004-01-22 |
DE60125230D1 (en) | 2007-01-25 |
DE60125230T2 (en) | 2007-04-26 |
ATE348445T1 (en) | 2007-01-15 |
EP1340314A1 (en) | 2003-09-03 |
FI20002396A (en) | 2002-05-01 |
EP1340314B1 (en) | 2006-12-13 |
FI114666B (en) | 2004-11-30 |
US6970041B2 (en) | 2005-11-29 |
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