WO2008111491A1 - 3次相互変調歪補償増幅器とそれを有する低雑音増幅器 - Google Patents
3次相互変調歪補償増幅器とそれを有する低雑音増幅器 Download PDFInfo
- Publication number
- WO2008111491A1 WO2008111491A1 PCT/JP2008/054077 JP2008054077W WO2008111491A1 WO 2008111491 A1 WO2008111491 A1 WO 2008111491A1 JP 2008054077 W JP2008054077 W JP 2008054077W WO 2008111491 A1 WO2008111491 A1 WO 2008111491A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- amplifier
- distortion
- noise
- low
- distortion compensation
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
- H03F3/45183—Long tailed pairs
- H03F3/45188—Non-folded cascode stages
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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
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/372—Noise reduction and elimination in amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45292—Indexing scheme relating to differential amplifiers the AAC comprising biasing means controlled by the signal
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
Abstract
小型化が進むチューナに用いる低雑音増幅器は省電力化と低雑音化という性能を求められている。低雑音化を図るために、チューナの初段で使われる増幅器において、3次相互変調歪を低減することが効率のよい方法であるが、歪量を外部からの信号で可変的に調整できる低雑音増幅器が必要とされている。そこで、初段の増幅器(9)からの出力をメイン増幅器(20)で増幅し、その出力に歪補償増幅器(30)からの出力を加える構成とする。歪補償増幅器はQ3からQ6までの4つのFETと定電流回路CC1から構成され、バイアスされるQ5とQ6を、Q3とQ4を通じて入力信号で駆動することで、入力信号と逆相の3次歪を発生させ歪をキャンセルさせる。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009504014A JPWO2008111491A1 (ja) | 2007-03-10 | 2008-03-06 | 3次相互変調歪補償増幅器とそれを有する低雑音増幅器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007061127 | 2007-03-10 | ||
JP2007-061127 | 2007-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008111491A1 true WO2008111491A1 (ja) | 2008-09-18 |
Family
ID=39759433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/054077 WO2008111491A1 (ja) | 2007-03-10 | 2008-03-06 | 3次相互変調歪補償増幅器とそれを有する低雑音増幅器 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPWO2008111491A1 (ja) |
WO (1) | WO2008111491A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012119939A (ja) * | 2010-11-30 | 2012-06-21 | Toa Corp | ワイヤレス受信機およびワイヤレスマイクロフォンシステム |
CN111682855A (zh) * | 2019-03-11 | 2020-09-18 | 立积电子股份有限公司 | 信号处理装置 |
US11283412B2 (en) | 2019-10-31 | 2022-03-22 | Realtek Semiconductor Corporation | Low noise amplifier circuit having multiple gains |
CN116961595A (zh) * | 2023-08-08 | 2023-10-27 | 中国人民解放军总医院京南医疗区 | 一种放大电路和血压计 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58137311A (ja) * | 1982-02-10 | 1983-08-15 | Nec Corp | 差動ソ−スホロワ回路 |
JPH0730342A (ja) * | 1993-07-13 | 1995-01-31 | Nec Corp | 演算増幅回路 |
JPH0846456A (ja) * | 1994-06-30 | 1996-02-16 | Sgs Thomson Microelettronica Spa | コモンモード電流信号をキャンセルする方法およびその方法を用いたトランスコンダクタ・システム |
JP2004180015A (ja) * | 2002-11-27 | 2004-06-24 | Sumitomo Electric Ind Ltd | カスコード型増幅回路 |
JP2005124175A (ja) * | 2003-09-24 | 2005-05-12 | Matsushita Electric Ind Co Ltd | 増幅装置および周波数変換装置 |
WO2005109628A1 (en) * | 2004-05-12 | 2005-11-17 | Sirific Wireless Corporation | A tuneable circuit for canceling third order modulation |
-
2008
- 2008-03-06 WO PCT/JP2008/054077 patent/WO2008111491A1/ja active Application Filing
- 2008-03-06 JP JP2009504014A patent/JPWO2008111491A1/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58137311A (ja) * | 1982-02-10 | 1983-08-15 | Nec Corp | 差動ソ−スホロワ回路 |
JPH0730342A (ja) * | 1993-07-13 | 1995-01-31 | Nec Corp | 演算増幅回路 |
JPH0846456A (ja) * | 1994-06-30 | 1996-02-16 | Sgs Thomson Microelettronica Spa | コモンモード電流信号をキャンセルする方法およびその方法を用いたトランスコンダクタ・システム |
JP2004180015A (ja) * | 2002-11-27 | 2004-06-24 | Sumitomo Electric Ind Ltd | カスコード型増幅回路 |
JP2005124175A (ja) * | 2003-09-24 | 2005-05-12 | Matsushita Electric Ind Co Ltd | 増幅装置および周波数変換装置 |
WO2005109628A1 (en) * | 2004-05-12 | 2005-11-17 | Sirific Wireless Corporation | A tuneable circuit for canceling third order modulation |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012119939A (ja) * | 2010-11-30 | 2012-06-21 | Toa Corp | ワイヤレス受信機およびワイヤレスマイクロフォンシステム |
CN111682855A (zh) * | 2019-03-11 | 2020-09-18 | 立积电子股份有限公司 | 信号处理装置 |
CN111682855B (zh) * | 2019-03-11 | 2023-04-07 | 立积电子股份有限公司 | 信号处理装置 |
US11283412B2 (en) | 2019-10-31 | 2022-03-22 | Realtek Semiconductor Corporation | Low noise amplifier circuit having multiple gains |
TWI788598B (zh) * | 2019-10-31 | 2023-01-01 | 瑞昱半導體股份有限公司 | 具多個放大增益的低雜訊放大器電路 |
CN116961595A (zh) * | 2023-08-08 | 2023-10-27 | 中国人民解放军总医院京南医疗区 | 一种放大电路和血压计 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2008111491A1 (ja) | 2010-06-24 |
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