HK1085310A1 - Improving the efficiency of power amplifiers in devices using transmit beamforming - Google Patents

Improving the efficiency of power amplifiers in devices using transmit beamforming

Info

Publication number
HK1085310A1
HK1085310A1 HK06105359.8A HK06105359A HK1085310A1 HK 1085310 A1 HK1085310 A1 HK 1085310A1 HK 06105359 A HK06105359 A HK 06105359A HK 1085310 A1 HK1085310 A1 HK 1085310A1
Authority
HK
Hong Kong
Prior art keywords
radio frequency
power amplifiers
signals
transmit
supplied
Prior art date
Application number
HK06105359.8A
Other languages
English (en)
Inventor
Gary L Sugar
Chandra Vaidyanathan
Sifen Luo
Original Assignee
Ipr Licensing Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US10/174,728 external-priority patent/US6687492B1/en
Application filed by Ipr Licensing Inc filed Critical Ipr Licensing Inc
Publication of HK1085310A1 publication Critical patent/HK1085310A1/xx

Links

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)
HK06105359.8A 2002-03-21 2006-05-08 Improving the efficiency of power amplifiers in devices using transmit beamforming HK1085310A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US36581102P 2002-03-21 2002-03-21
US36579702P 2002-03-21 2002-03-21
US36577502P 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
HK1085310A1 true HK1085310A1 (en) 2006-08-18

Family

ID=28457917

Family Applications (1)

Application Number Title Priority Date Filing Date
HK06105359.8A HK1085310A1 (en) 2002-03-21 2006-05-08 Improving the efficiency of power amplifiers in devices using transmit beamforming

Country Status (8)

Country Link
EP (2) EP1595329B1 (da)
AT (2) ATE522031T1 (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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2005600B1 (en) * 2006-04-03 2018-06-20 NXP USA, 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
EP2756549B1 (en) * 2011-10-07 2018-09-26 Telefonaktiebolaget LM Ericsson (publ) Apparatus and method for use with antenna array
EP3501111B1 (en) * 2016-09-07 2022-01-12 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ATE522031T1 (de) 2011-09-15
ES2346420T3 (es) 2010-10-15
DE60332771D1 (de) 2010-07-08
ATE469461T1 (de) 2010-06-15
EP2224609A1 (en) 2010-09-01
AU2003220200A1 (en) 2003-10-08
AU2003220200A8 (en) 2003-10-08
EP1595329A2 (en) 2005-11-16
EP1595329A4 (en) 2008-11-05
WO2003081768A3 (en) 2004-02-05
WO2003081768A2 (en) 2003-10-02
EP1595329B1 (en) 2010-05-26
DK1595329T3 (da) 2010-09-27
EP2224609B1 (en) 2011-08-24

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20180313