JP4142004B2 - 歪補償回路、それを用いた電力増幅器および電力増幅器を備える通信装置 - Google Patents
歪補償回路、それを用いた電力増幅器および電力増幅器を備える通信装置 Download PDFInfo
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- JP4142004B2 JP4142004B2 JP2004344591A JP2004344591A JP4142004B2 JP 4142004 B2 JP4142004 B2 JP 4142004B2 JP 2004344591 A JP2004344591 A JP 2004344591A JP 2004344591 A JP2004344591 A JP 2004344591A JP 4142004 B2 JP4142004 B2 JP 4142004B2
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- Prior art keywords
- power
- power amplifier
- diode
- compensation circuit
- distortion compensation
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- 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
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/372—Noise reduction and elimination in amplifier
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Description
図1は、本発明の実施の形態1に従う歪補償回路20の回路構成図である。
図4は、本発明の実施の形態2に従う電力増幅器50の概略構成図である。
図6は、本発明の実施の形態3に従う電力増幅器60の回路構成図である。
図8は、本発明の実施の形態4に従う通信装置80の主要部の構成を示す概略ブロック図である。
Claims (7)
- 電力増幅素子の直流バイアス電流を小さくした時に生じる正の利得偏差を抑制するための歪補償回路であって、
入力端子と出力端子との間の信号経路に対して、直流電源が接続され、順方向にバイアスされたダイオードを含む回路とが内部ノードを介して接続され、前記信号経路の入力端子側および出力端子側と前記内部ノードとの間にはキャパシタがそれぞれ直列に接続され、
前記順方向にバイアスされたダイオードに印加される順方向バイアス電圧は、前記ダイオードのターンオン電圧以下に設定される、歪補償回路。 - 請求項1に記載される前記歪補償回路は、前記電力増幅素子の前段に設けられる、電力増幅器。
- 前記電力増幅素子は、バイポーラトランジスタにより構成される請求項2に記載の電力増幅器。
- 前記ダイオードは、前記バイポーラトランジスタのエミッタ−ベース接合もしくはベース−コレクタ接合の少なくとも一方により構成される、請求項2または3に記載の電力増幅器。
- 前記歪補償回路は、複数の電力増幅素子により構成される多段電力増幅器の少なくとも最終出力段の電力増幅素子の前段に設けられる、請求項2〜4のいずれか1つに記載の電力増幅器。
- 請求項2〜5のいずれか1つに記載の電力増幅器を備えた、通信装置。
- 前記電力増幅器は、送信用電力増幅器である、請求項6記載の通信装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004344591A JP4142004B2 (ja) | 2004-11-29 | 2004-11-29 | 歪補償回路、それを用いた電力増幅器および電力増幅器を備える通信装置 |
US11/247,292 US7321265B2 (en) | 2004-11-29 | 2005-10-12 | Distortion compensating circuit having negative gain deviation, power amplifier using the same, and communication device having power amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004344591A JP4142004B2 (ja) | 2004-11-29 | 2004-11-29 | 歪補償回路、それを用いた電力増幅器および電力増幅器を備える通信装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006157435A JP2006157435A (ja) | 2006-06-15 |
JP4142004B2 true JP4142004B2 (ja) | 2008-08-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004344591A Expired - Fee Related JP4142004B2 (ja) | 2004-11-29 | 2004-11-29 | 歪補償回路、それを用いた電力増幅器および電力増幅器を備える通信装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7321265B2 (ja) |
JP (1) | JP4142004B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070050718A (ko) * | 2005-11-12 | 2007-05-16 | 삼성전자주식회사 | 메모리 효과를 최소화하는 기지국용 전력 증폭기 |
US7893771B2 (en) * | 2007-01-05 | 2011-02-22 | City University Of Hong Kong | Wideband linearization and adaptive power management for microwave power amplifiers |
US7932782B2 (en) * | 2007-12-10 | 2011-04-26 | City University Of Hong Kong | Average power efficiency enhancement and linearity improvement of microwave power amplifiers |
CN102640350B (zh) * | 2009-02-18 | 2015-02-04 | 豪沃基金有限责任公司 | 超材料功率放大器系统 |
US20140309992A1 (en) * | 2013-04-16 | 2014-10-16 | University Of Rochester | Method for detecting, identifying, and enhancing formant frequencies in voiced speech |
JP2015222912A (ja) * | 2014-05-23 | 2015-12-10 | 三菱電機株式会社 | リニアライザ |
TWI693788B (zh) * | 2017-02-15 | 2020-05-11 | 立積電子股份有限公司 | 用於對放大器的線性度進行補償的前置補償器 |
TWI647905B (zh) * | 2017-02-15 | 2019-01-11 | 立積電子股份有限公司 | 用於對放大器的線性度進行補償的前置補償器 |
TWI669905B (zh) * | 2017-02-15 | 2019-08-21 | 立積電子股份有限公司 | 用於對放大器的線性度進行補償的前置補償器 |
KR102329375B1 (ko) * | 2017-03-28 | 2021-11-19 | 미쓰비시덴키 가부시키가이샤 | 다이오드 리니어라이저 |
CN107147365B (zh) * | 2017-04-27 | 2020-12-11 | 中国科学院微电子研究所 | 一种Class-E功率放大器 |
CN109617162B (zh) * | 2018-12-17 | 2022-08-09 | 思瑞浦微电子科技(苏州)股份有限公司 | 一种充电电流线性度补偿的电路及其方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3335907B2 (ja) | 1998-06-04 | 2002-10-21 | 三菱電機株式会社 | 歪補償回路及び低歪半導体増幅器 |
JP2001144550A (ja) | 1999-11-12 | 2001-05-25 | Matsushita Electric Ind Co Ltd | 非線型歪み補償回路及び非線型歪み補償電力増幅器 |
US6933780B2 (en) * | 2000-02-03 | 2005-08-23 | Matsushita Electric Industrial Co., Ltd. | Predistortion circuit and power amplifier |
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2004
- 2004-11-29 JP JP2004344591A patent/JP4142004B2/ja not_active Expired - Fee Related
-
2005
- 2005-10-12 US US11/247,292 patent/US7321265B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2006157435A (ja) | 2006-06-15 |
US7321265B2 (en) | 2008-01-22 |
US20060114066A1 (en) | 2006-06-01 |
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