SE9701080L - Förstärkningskrets för sändare - Google Patents
Förstärkningskrets för sändareInfo
- Publication number
- SE9701080L SE9701080L SE9701080A SE9701080A SE9701080L SE 9701080 L SE9701080 L SE 9701080L SE 9701080 A SE9701080 A SE 9701080A SE 9701080 A SE9701080 A SE 9701080A SE 9701080 L SE9701080 L SE 9701080L
- Authority
- SE
- Sweden
- Prior art keywords
- signal
- agc voltage
- amplifying
- voltage vagc
- variable
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
- H03G3/20—Automatic control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP07709796A JP3479405B2 (ja) | 1996-03-29 | 1996-03-29 | 送信機の増幅回路 |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9701080D0 SE9701080D0 (sv) | 1997-03-24 |
SE9701080L true SE9701080L (sv) | 1997-09-30 |
SE519819C2 SE519819C2 (sv) | 2003-04-15 |
Family
ID=13624292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9701080A SE519819C2 (sv) | 1996-03-29 | 1997-03-24 | Förstärkningskrets, med variabla förstärkningselement och gemensam linjärt varierad AFK-spänning, avsedd för sändare |
Country Status (8)
Country | Link |
---|---|
US (1) | US5926749A (sv) |
JP (1) | JP3479405B2 (sv) |
KR (1) | KR100266505B1 (sv) |
CN (1) | CN1086863C (sv) |
DE (1) | DE19713099B4 (sv) |
FR (1) | FR2746983B1 (sv) |
GB (1) | GB2311671B (sv) |
SE (1) | SE519819C2 (sv) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2326038A (en) * | 1997-06-06 | 1998-12-09 | Nokia Mobile Phones Ltd | Signal level balancing in quadrature receiver |
US6567647B1 (en) * | 1998-03-26 | 2003-05-20 | Ericsson Inc. | Low noise radio frequency transceivers including circulators |
JP2000031763A (ja) * | 1998-07-14 | 2000-01-28 | Fujitsu Ltd | 可変利得回路 |
JP3607097B2 (ja) | 1998-10-29 | 2005-01-05 | アルプス電気株式会社 | 送信回路 |
FI112741B (sv) | 1998-11-26 | 2003-12-31 | Nokia Corp | Förfarande och anordning för att sända och mottaga RF-signaler vid olika radiogränssnitt av dataöverföringssystem |
US6178313B1 (en) * | 1998-12-31 | 2001-01-23 | Nokia Mobile Phones Limited | Control of gain and power consumption in a power amplifier |
JP3618055B2 (ja) * | 1999-02-05 | 2005-02-09 | 富士通株式会社 | 携帯移動端末および送信装置 |
US6341219B1 (en) * | 1999-02-05 | 2002-01-22 | Agere Systems Guardian Corp. | Single-source automatic power control method and apparatus for frequency-diverse variable-gain stages of a CDMA cellular handset |
JP3592980B2 (ja) | 1999-06-29 | 2004-11-24 | 株式会社東芝 | 送信回路及び無線送信装置 |
JP2001352355A (ja) * | 2000-06-08 | 2001-12-21 | Nec Corp | ダイレクトコンバージョン受信機及び送受信機 |
JP4610697B2 (ja) * | 2000-06-13 | 2011-01-12 | パナソニック株式会社 | 送信電力制御方法及び無線通信装置 |
JP2002033629A (ja) * | 2000-07-14 | 2002-01-31 | Nec Corp | 利得可変増幅回路、およびそれを備えた端末装置 |
JP2002076947A (ja) * | 2000-08-25 | 2002-03-15 | Sharp Corp | 送信機 |
US6542029B1 (en) * | 2000-10-11 | 2003-04-01 | Skyworks Solutions, Inc. | Variable-slope variable-gain amplifier |
US6657494B2 (en) | 2001-09-28 | 2003-12-02 | International Business Machines Corporation | Variable gain mixer-amplifier with fixed DC operating voltage level |
AU2003289425A1 (en) * | 2002-12-20 | 2004-07-14 | Renesas Technology Corp. | Transmission circuit and transmitter/receiver using same |
KR100546325B1 (ko) * | 2003-05-09 | 2006-01-26 | 삼성전자주식회사 | 신호대 잡음비를 최대한 확보하며 최대 이득 부근의 정밀이득 제어로 전력 손실을 감소시키는 자동 이득 제어기,이를 구비한 이동 통신 단말기의 송신 장치 및 그 방법 |
US7450915B1 (en) * | 2003-12-27 | 2008-11-11 | Sequoia Communications | Smart transmitter system |
JP4752272B2 (ja) * | 2005-01-05 | 2011-08-17 | ソニー株式会社 | 通信装置 |
JP2011010192A (ja) * | 2009-06-29 | 2011-01-13 | Mitsubishi Electric Corp | 可変利得増幅器及びそれを用いた移相器 |
CN104796103A (zh) * | 2015-03-30 | 2015-07-22 | 苏州锟恩电子科技有限公司 | 一种可变增益同相放大器装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345250B2 (sv) * | 1974-10-02 | 1978-12-05 | ||
US4718116A (en) * | 1982-06-01 | 1988-01-05 | Aerotron, Inc. | Method and apparatus for receiving a compressed composite signal |
JPS60117905A (ja) * | 1983-11-30 | 1985-06-25 | Toshiba Corp | 差動増幅器 |
US4816772A (en) * | 1988-03-09 | 1989-03-28 | Rockwell International Corporation | Wide range linear automatic gain control amplifier |
JPH02301308A (ja) * | 1989-05-16 | 1990-12-13 | Iwatsu Electric Co Ltd | ゲイン可変回路 |
US5126688A (en) * | 1990-03-20 | 1992-06-30 | Oki Electric Co., Ltd. | Power amplifying apparatus for wireless transmitter |
KR960007138B1 (ko) * | 1990-12-20 | 1996-05-27 | 모토로라 인코포레이티드 | 시분할 다중 액세스 무선 주파수 송신기용 전력 제어 회로 |
US5307512A (en) * | 1991-06-03 | 1994-04-26 | Motorola, Inc. | Power control circuitry for achieving wide dynamic range in a transmitter |
US5287555A (en) * | 1991-07-22 | 1994-02-15 | Motorola, Inc. | Power control circuitry for a TDMA radio frequency transmitter |
US5448770A (en) * | 1993-04-05 | 1995-09-05 | Motorola, Inc. | Temperature-coefficient controlled radio frequency signal detecting circuitry |
KR0160687B1 (ko) * | 1994-04-29 | 1999-01-15 | 김광호 | 저잡음 증폭기를 갖는 영상신호 수신상치 |
-
1996
- 1996-03-29 JP JP07709796A patent/JP3479405B2/ja not_active Expired - Fee Related
-
1997
- 1997-03-12 US US08/818,403 patent/US5926749A/en not_active Expired - Lifetime
- 1997-03-18 GB GB9705725A patent/GB2311671B/en not_active Expired - Fee Related
- 1997-03-24 SE SE9701080A patent/SE519819C2/sv not_active IP Right Cessation
- 1997-03-26 FR FR9703670A patent/FR2746983B1/fr not_active Expired - Fee Related
- 1997-03-27 DE DE19713099A patent/DE19713099B4/de not_active Expired - Fee Related
- 1997-03-28 KR KR1019970011041A patent/KR100266505B1/ko not_active IP Right Cessation
- 1997-03-31 CN CN97103746A patent/CN1086863C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2311671A (en) | 1997-10-01 |
FR2746983A1 (fr) | 1997-10-03 |
CN1086863C (zh) | 2002-06-26 |
DE19713099A1 (de) | 1997-11-06 |
DE19713099B4 (de) | 2008-02-14 |
US5926749A (en) | 1999-07-20 |
KR100266505B1 (ko) | 2000-09-15 |
JPH09270649A (ja) | 1997-10-14 |
JP3479405B2 (ja) | 2003-12-15 |
GB2311671B (en) | 2000-07-19 |
SE9701080D0 (sv) | 1997-03-24 |
FR2746983B1 (fr) | 1998-12-31 |
SE519819C2 (sv) | 2003-04-15 |
GB9705725D0 (en) | 1997-05-07 |
CN1165430A (zh) | 1997-11-19 |
KR970068134A (ko) | 1997-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |