FI972345A - Amplifier circuit and amplifier circuit tuning method - Google Patents
Amplifier circuit and amplifier circuit tuning method Download PDFInfo
- Publication number
- FI972345A FI972345A FI972345A FI972345A FI972345A FI 972345 A FI972345 A FI 972345A FI 972345 A FI972345 A FI 972345A FI 972345 A FI972345 A FI 972345A FI 972345 A FI972345 A FI 972345A
- Authority
- FI
- Finland
- Prior art keywords
- amplifier circuit
- tuning method
- circuit tuning
- amplifier
- tuning
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
-
- 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
- H03F3/604—Combinations of several amplifiers using FET's
-
- 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
- H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US56484595A | 1995-11-30 | 1995-11-30 | |
| PCT/US1996/014269 WO1997020385A1 (en) | 1995-11-30 | 1996-09-04 | Doherty-type amplifier and tuning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI972345A true FI972345A (en) | 1997-06-02 |
| FI972345A0 FI972345A0 (en) | 1997-06-02 |
Family
ID=24256136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI972345A FI972345A0 (en) | 1995-11-30 | 1997-06-02 | Amplifier circuit and method for tuning the amplifier circuit |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPH10513631A (en) |
| KR (1) | KR19980701804A (en) |
| AU (1) | AU7154696A (en) |
| CA (1) | CA2204409A1 (en) |
| DE (1) | DE19681072T1 (en) |
| FI (1) | FI972345A0 (en) |
| GB (1) | GB2313009A (en) |
| SE (1) | SE9701538L (en) |
| TW (1) | TW322657B (en) |
| WO (1) | WO1997020385A1 (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5786727A (en) * | 1996-10-15 | 1998-07-28 | Motorola, Inc. | Multi-stage high efficiency linear power amplifier and method therefor |
| US6028485A (en) * | 1998-08-03 | 2000-02-22 | Motorola, Inc. | Power amplification apparatus and method therefor |
| KR100362925B1 (en) * | 1999-03-31 | 2002-11-29 | 가부시키가이샤 엔.티.티.도코모 | Feedforward amplifier |
| US6320462B1 (en) * | 2000-04-12 | 2001-11-20 | Raytheon Company | Amplifier circuit |
| SE520760C2 (en) * | 2000-06-06 | 2003-08-19 | Ericsson Telefon Ab L M | Doherty multistage amplifier |
| SE516847C2 (en) | 2000-07-07 | 2002-03-12 | Ericsson Telefon Ab L M | Composite amplifier and transmitter including such amplifier |
| US6760230B2 (en) * | 2001-02-28 | 2004-07-06 | Andrew Corporation | Compact, high efficiency, high isolation power amplifier |
| US20020186079A1 (en) * | 2001-06-08 | 2002-12-12 | Kobayashi Kevin W. | Asymmetrically biased high linearity balanced amplifier |
| US6917246B2 (en) * | 2001-09-10 | 2005-07-12 | Skyworks Solutions, Inc. | Doherty bias circuit to dynamically compensate for process and environmental variations |
| JP2004221646A (en) | 2003-01-09 | 2004-08-05 | Nec Corp | Doherty amplifier |
| JP2004222151A (en) | 2003-01-17 | 2004-08-05 | Nec Corp | Doherty amplifier |
| US7038539B2 (en) * | 2003-05-06 | 2006-05-02 | Powerwave Technologies, Inc. | RF amplifier employing active load linearization |
| US7710202B2 (en) | 2003-09-17 | 2010-05-04 | Nec Corporation | Amplifier |
| WO2005029695A1 (en) * | 2003-09-17 | 2005-03-31 | Nec Corporation | Amplifier |
| JP4520204B2 (en) | 2004-04-14 | 2010-08-04 | 三菱電機株式会社 | High frequency power amplifier |
| KR100654650B1 (en) * | 2004-11-25 | 2006-12-08 | 아바고테크놀로지스코리아 주식회사 | A series-type Doherty amplifier without hybrid coupler |
| US7180372B2 (en) * | 2004-12-07 | 2007-02-20 | Stmicroelectronics, Inc. | High frequency amplifier |
| JP4700470B2 (en) * | 2004-12-15 | 2011-06-15 | 株式会社日立国際電気 | amplifier |
| US7193473B2 (en) * | 2005-03-24 | 2007-03-20 | Cree, Inc. | High power Doherty amplifier using multi-stage modules |
| WO2007015462A1 (en) * | 2005-08-01 | 2007-02-08 | Mitsubishi Electric Corporation | Highly efficient amplifier |
| JP4486620B2 (en) * | 2006-06-23 | 2010-06-23 | 株式会社エヌ・ティ・ティ・ドコモ | Multiband Doherty amplifier |
| EP2383883B1 (en) | 2010-04-23 | 2013-07-17 | Nxp B.V. | Power amplifier |
| KR101255821B1 (en) * | 2011-06-17 | 2013-04-24 | 주식회사 피플웍스 | Doherty power amplifier being insert type |
| EP2698918A1 (en) * | 2012-08-14 | 2014-02-19 | Nxp B.V. | Amplifier circuit |
| US9407214B2 (en) * | 2013-06-28 | 2016-08-02 | Cree, Inc. | MMIC power amplifier |
| DE102013226635B4 (en) | 2013-12-19 | 2023-07-06 | Rohde & Schwarz GmbH & Co. Kommanditgesellschaft | Doherty amplifier with additional delay element |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01137710A (en) * | 1987-11-24 | 1989-05-30 | Sumitomo Electric Ind Ltd | Wide band amplifier |
| US5420541A (en) * | 1993-06-04 | 1995-05-30 | Raytheon Company | Microwave doherty amplifier |
| US5444418A (en) * | 1994-07-29 | 1995-08-22 | Motorola, Inc. | Method and apparatus for feedforward power amplifying |
| JP4047406B2 (en) * | 1996-11-15 | 2008-02-13 | 芝浦メカトロニクス株式会社 | Cleaning processing equipment |
-
1996
- 1996-09-04 DE DE19681072T patent/DE19681072T1/en not_active Withdrawn
- 1996-09-04 CA CA002204409A patent/CA2204409A1/en not_active Abandoned
- 1996-09-04 AU AU71546/96A patent/AU7154696A/en not_active Abandoned
- 1996-09-04 GB GB9713888A patent/GB2313009A/en not_active Withdrawn
- 1996-09-04 JP JP9520453A patent/JPH10513631A/en active Pending
- 1996-09-04 WO PCT/US1996/014269 patent/WO1997020385A1/en not_active Application Discontinuation
- 1996-09-04 KR KR1019970705201A patent/KR19980701804A/en not_active Application Discontinuation
- 1996-09-12 TW TW085111159A patent/TW322657B/zh active
-
1997
- 1997-04-24 SE SE9701538A patent/SE9701538L/en not_active Application Discontinuation
- 1997-06-02 FI FI972345A patent/FI972345A0/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE9701538D0 (en) | 1997-04-24 |
| WO1997020385A1 (en) | 1997-06-05 |
| DE19681072T1 (en) | 1998-01-22 |
| TW322657B (en) | 1997-12-11 |
| GB9713888D0 (en) | 1997-09-03 |
| KR19980701804A (en) | 1998-06-25 |
| GB2313009A (en) | 1997-11-12 |
| AU7154696A (en) | 1997-06-19 |
| SE9701538L (en) | 1997-09-30 |
| CA2204409A1 (en) | 1997-05-31 |
| JPH10513631A (en) | 1998-12-22 |
| FI972345A0 (en) | 1997-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD | Application lapsed |