DK1595329T3 - Forbedring af virkningsgraden af effektforstærkere i indretninger der anvender transmissionsstråledannelse - Google Patents
Forbedring af virkningsgraden af effektforstærkere i indretninger der anvender transmissionsstråledannelseInfo
- Publication number
- DK1595329T3 DK1595329T3 DK03716496.9T DK03716496T DK1595329T3 DK 1595329 T3 DK1595329 T3 DK 1595329T3 DK 03716496 T DK03716496 T DK 03716496T DK 1595329 T3 DK1595329 T3 DK 1595329T3
- Authority
- DK
- Denmark
- Prior art keywords
- radio frequency
- power amplifiers
- signals
- supplied
- packet
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title abstract 2
- 230000015572 biosynthetic process Effects 0.000 title 1
Classifications
-
- 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
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0244—Stepped control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/28—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the amplitude
-
- 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
- H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
- H03F1/0266—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A by using a signal derived from the input signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
-
- 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
-
- 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
- H03G3/3089—Control of digital or coded signals
-
- 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
- H04B1/0483—Transmitters with multiple parallel paths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
- H04B7/0669—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different channel coding between antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36581102P | 2002-03-21 | 2002-03-21 | |
US36577502P | 2002-03-21 | 2002-03-21 | |
US36579702P | 2002-03-21 | 2002-03-21 | |
US10/174,728 US6687492B1 (en) | 2002-03-01 | 2002-06-19 | System and method for antenna diversity using joint maximal ratio combining |
PCT/US2003/007561 WO2003081768A2 (en) | 2002-03-21 | 2003-03-13 | Improving the efficiency of power amplifiers in devices using transmit beamforming |
Publications (1)
Publication Number | Publication Date |
---|---|
DK1595329T3 true DK1595329T3 (da) | 2010-09-27 |
Family
ID=28457917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK03716496.9T DK1595329T3 (da) | 2002-03-21 | 2003-03-13 | Forbedring af virkningsgraden af effektforstærkere i indretninger der anvender transmissionsstråledannelse |
Country Status (8)
Country | Link |
---|---|
EP (2) | EP1595329B1 (da) |
AT (2) | ATE469461T1 (da) |
AU (1) | AU2003220200A1 (da) |
DE (1) | DE60332771D1 (da) |
DK (1) | DK1595329T3 (da) |
ES (1) | ES2346420T3 (da) |
HK (1) | HK1085310A1 (da) |
WO (1) | WO2003081768A2 (da) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007112772A1 (en) * | 2006-04-03 | 2007-10-11 | Freescale Semiconductor, Inc. | Bias circuit for a radio frequency power-amplifier and method therefor |
US8265572B2 (en) * | 2009-12-21 | 2012-09-11 | Ubidyne, Inc. | Multiple envelope tracking system for an active antenna array |
US9197296B2 (en) * | 2010-04-05 | 2015-11-24 | Qualcomm Incorporated | Method and apparatus for maximum ratio transmission mobile transmit diversity system |
WO2013050085A1 (en) * | 2011-10-07 | 2013-04-11 | Telefonaktiebolaget L M Ericsson (Publ) | Apparatus and method for use with antenna array |
US11005517B2 (en) | 2016-09-07 | 2021-05-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Handling of unwanted emissions from a radio communications device |
CN113541755B (zh) * | 2020-04-17 | 2023-06-16 | 华为技术有限公司 | 天线选择方法及相关设备 |
CN112312532B (zh) * | 2020-11-27 | 2022-05-13 | 歌尔科技有限公司 | 天线的功耗控制方法、终端及计算机可读存储介质 |
US20240047871A1 (en) * | 2021-02-11 | 2024-02-08 | Saab Ab | Method and device for controlling the output efficiency of a plurality of amplifiers |
US11967773B2 (en) * | 2021-03-29 | 2024-04-23 | Renesas Electronics America Inc. | Dynamic amplifier supply in a phased antenna array |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6091934A (en) * | 1997-09-02 | 2000-07-18 | Hughes Electronics Corporation | Dynamic power allocation system and method for multi-beam satellite amplifiers |
US6570929B1 (en) * | 1999-07-08 | 2003-05-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Power control scheme for maximizing carrier signal-to-noise ratio in multicarrier transmitters |
GB0102316D0 (en) * | 2001-01-30 | 2001-03-14 | Koninkl Philips Electronics Nv | Radio communication system |
US6538802B2 (en) | 2001-07-31 | 2003-03-25 | Axsun Technologies, Inc | System and method for tilt mirror calibration due to capacitive sensor drift |
ITMI20012685A1 (it) * | 2001-12-19 | 2003-06-19 | Cit Alcatel | Metodo e sistema per raddoppiare l'efficienza spettrale inhun sistemadi trasmissione radio |
-
2003
- 2003-03-13 AT AT03716496T patent/ATE469461T1/de not_active IP Right Cessation
- 2003-03-13 WO PCT/US2003/007561 patent/WO2003081768A2/en not_active Application Discontinuation
- 2003-03-13 AT AT10159279T patent/ATE522031T1/de not_active IP Right Cessation
- 2003-03-13 AU AU2003220200A patent/AU2003220200A1/en not_active Abandoned
- 2003-03-13 EP EP03716496A patent/EP1595329B1/en not_active Expired - Lifetime
- 2003-03-13 EP EP10159279A patent/EP2224609B1/en not_active Expired - Lifetime
- 2003-03-13 DK DK03716496.9T patent/DK1595329T3/da active
- 2003-03-13 ES ES03716496T patent/ES2346420T3/es not_active Expired - Lifetime
- 2003-03-13 DE DE60332771T patent/DE60332771D1/de not_active Expired - Lifetime
-
2006
- 2006-05-08 HK HK06105359.8A patent/HK1085310A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2003081768A3 (en) | 2004-02-05 |
EP1595329A4 (en) | 2008-11-05 |
EP2224609B1 (en) | 2011-08-24 |
WO2003081768A2 (en) | 2003-10-02 |
DE60332771D1 (de) | 2010-07-08 |
EP1595329A2 (en) | 2005-11-16 |
AU2003220200A1 (en) | 2003-10-08 |
AU2003220200A8 (en) | 2003-10-08 |
EP2224609A1 (en) | 2010-09-01 |
ATE522031T1 (de) | 2011-09-15 |
HK1085310A1 (en) | 2006-08-18 |
ES2346420T3 (es) | 2010-10-15 |
EP1595329B1 (en) | 2010-05-26 |
ATE469461T1 (de) | 2010-06-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
HK1085310A1 (en) | Improving the efficiency of power amplifiers in devices using transmit beamforming | |
JP6140692B2 (ja) | Mimoのための包絡線追跡システム | |
ATE240607T1 (de) | Sender für funksignale, die mit einer autoadaptiven verstärkerspolarisation moduliert werden | |
WO2002084864A3 (en) | Communications signal amplifiers having independent power control and amplitude modulation | |
ATE463076T1 (de) | Leistungsverstärker | |
MY139090A (en) | High performance modulator architecture for the outphasing rf amplifier | |
WO2002075920A3 (en) | Segmented power amplifier and method of control | |
EP2688202A3 (en) | Systems and methods for vector power amplification | |
MXPA01000420A (es) | Metodo y aparato para la amplificacion de senales dependiente de la modulacion. | |
WO2003063338A3 (en) | Direct conversion of low power high linearity receiver | |
WO2009082582A3 (en) | Method and apparatus for direct digital to radio frequency conversion | |
DE60232230D1 (de) | Rauscharmer verstärker mit variabler verstärkung für ein drahtloses endgerät | |
WO2009060652A1 (ja) | 電力増幅器およびこれを備える電波送信機 | |
IL187206A (en) | Direct conversion with variable amplitude lo signals | |
EP1667331A4 (en) | AMPLIFIER CIRCUIT AND REINFORCEMENT PROCESS | |
CN103199812B (zh) | 应用于无线接收器的放大器与相关方法 | |
ATE468658T1 (de) | Hochfrequenzverstärkerschaltung mit unabhängiger steuerung von ruhestrom und vorspannungsimpedanz | |
SE9701080L (sv) | Förstärkningskrets för sändare | |
WO2004008630A3 (de) | Verstärkerschaltung mit einstellbarer verstärkung und sendeanordnung mit der verstärkerschaltung | |
WO2003075452A3 (en) | Method of adjusting gain and current consumption of a power amplifier circuit while maintaining linearity | |
HK1085581A1 (en) | Methods and apparatus for reducing signal interference in a wireless receiver based on signal-to-interference ratio | |
WO2004102790A3 (en) | Digital switching power amplifier | |
WO2009151097A1 (ja) | 電力増幅器及びその増幅方法、それを用いた電波送信機 | |
SE0100528L (sv) | Automatisk förstärkningsreglering | |
CN101056111B (zh) | 脉冲周期电压调整器、调频接收器以及调整峰值的方法 |