GB2309342B - Linear transmitter and method of operation - Google Patents
Linear transmitter and method of operationInfo
- Publication number
- GB2309342B GB2309342B GB9600977A GB9600977A GB2309342B GB 2309342 B GB2309342 B GB 2309342B GB 9600977 A GB9600977 A GB 9600977A GB 9600977 A GB9600977 A GB 9600977A GB 2309342 B GB2309342 B GB 2309342B
- Authority
- GB
- United Kingdom
- Prior art keywords
- linear transmitter
- transmitter
- linear
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- 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
- H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9600977A GB2309342B (en) | 1996-01-18 | 1996-01-18 | Linear transmitter and method of operation |
FR9700069A FR2743961B1 (en) | 1996-01-18 | 1997-01-07 | LINEAR TRANSMITTER METHOD AND CIRCUIT FOR REDUCING INTERFERENCE OF ADJACENT TRACKS IN A TIME DIVISION MULTIPLE ACCESS TELECOMMUNICATIONS SYSTEM |
DE1997101351 DE19701351C2 (en) | 1996-01-18 | 1997-01-16 | Linearized transmitter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9600977A GB2309342B (en) | 1996-01-18 | 1996-01-18 | Linear transmitter and method of operation |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9600977D0 GB9600977D0 (en) | 1996-03-20 |
GB2309342A GB2309342A (en) | 1997-07-23 |
GB2309342B true GB2309342B (en) | 2000-08-23 |
Family
ID=10787183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9600977A Expired - Lifetime GB2309342B (en) | 1996-01-18 | 1996-01-18 | Linear transmitter and method of operation |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE19701351C2 (en) |
FR (1) | FR2743961B1 (en) |
GB (1) | GB2309342B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE347221T1 (en) * | 2003-05-23 | 2006-12-15 | Sony Ericsson Mobile Comm Ab | AUTOMATIC POWER CONTROL CIRCUIT FOR A QAM TRANSMITTER IN A WIRELESS COMMUNICATION DEVICE |
US20070161356A1 (en) * | 2006-01-12 | 2007-07-12 | Hoon Bryan A | Method and apparatus for improved carrier feed thru rejection for a linear amplifier |
US10361745B2 (en) | 2017-06-28 | 2019-07-23 | Qualcomm Incorporated | Systems and methods for reducing transmit and receive power via a T/R switch |
US10367535B2 (en) | 2017-12-15 | 2019-07-30 | Motorola Solutions, Inc. | Cartesian loop circuits, transmitters, devices, and related methods |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0405445A2 (en) * | 1989-06-27 | 1991-01-02 | Nec Corporation | Output waveform control circuit |
EP0407135A2 (en) * | 1989-07-05 | 1991-01-09 | Matsushita Electric Industrial Co., Ltd. | Apparatus for controlling transmission output level for burst signal |
EP0537690A2 (en) * | 1991-10-14 | 1993-04-21 | Nec Corporation | Burst control circuit for use in TDMA communications system |
GB2263596A (en) * | 1991-07-22 | 1993-07-28 | Motorola Inc | Transition generating between on and off states of a radio frequency transmitter |
EP0588424A1 (en) * | 1992-09-18 | 1994-03-23 | Philips Electronics Uk Limited | Buest control in a power amplifier for a TDMA communication system |
EP0648012A1 (en) * | 1993-09-29 | 1995-04-12 | Linear Modulation Technology Ltd | Power control for cartesian amplifiers |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2927896B2 (en) * | 1990-06-28 | 1999-07-28 | 日本電気株式会社 | Spectrum suppression circuit |
US5066923A (en) * | 1990-10-31 | 1991-11-19 | Motorola, Inc. | Linear transmitter training method and apparatus |
JP2871889B2 (en) * | 1991-04-16 | 1999-03-17 | 三菱電機株式会社 | High frequency power amplifier |
DE4313152A1 (en) * | 1993-04-22 | 1994-10-27 | Sel Alcatel Ag | HF amplifier with signal level control and radio transmitter equipped with it |
GB9316869D0 (en) * | 1993-08-13 | 1993-09-29 | Philips Electronics Uk Ltd | Transmitter and power amplifier therefor |
US5590418A (en) * | 1993-09-30 | 1996-12-31 | Motorola, Inc. | Method and apparatus for stabilizing the gain of a control loop in a communication device |
GB2293935B (en) * | 1994-10-03 | 1999-07-14 | Linear Modulation Tech | Automatic calibration of carrier suppression and loop phase in a cartesian amplifier |
-
1996
- 1996-01-18 GB GB9600977A patent/GB2309342B/en not_active Expired - Lifetime
-
1997
- 1997-01-07 FR FR9700069A patent/FR2743961B1/en not_active Expired - Fee Related
- 1997-01-16 DE DE1997101351 patent/DE19701351C2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0405445A2 (en) * | 1989-06-27 | 1991-01-02 | Nec Corporation | Output waveform control circuit |
EP0407135A2 (en) * | 1989-07-05 | 1991-01-09 | Matsushita Electric Industrial Co., Ltd. | Apparatus for controlling transmission output level for burst signal |
GB2263596A (en) * | 1991-07-22 | 1993-07-28 | Motorola Inc | Transition generating between on and off states of a radio frequency transmitter |
EP0537690A2 (en) * | 1991-10-14 | 1993-04-21 | Nec Corporation | Burst control circuit for use in TDMA communications system |
EP0588424A1 (en) * | 1992-09-18 | 1994-03-23 | Philips Electronics Uk Limited | Buest control in a power amplifier for a TDMA communication system |
EP0648012A1 (en) * | 1993-09-29 | 1995-04-12 | Linear Modulation Technology Ltd | Power control for cartesian amplifiers |
Also Published As
Publication number | Publication date |
---|---|
GB9600977D0 (en) | 1996-03-20 |
DE19701351C2 (en) | 2003-04-24 |
DE19701351A1 (en) | 1997-10-30 |
FR2743961A1 (en) | 1997-07-25 |
FR2743961B1 (en) | 1998-12-31 |
GB2309342A (en) | 1997-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20160117 |