TW280064B - - Google Patents

Info

Publication number
TW280064B
TW280064B TW084109002A TW84109002A TW280064B TW 280064 B TW280064 B TW 280064B TW 084109002 A TW084109002 A TW 084109002A TW 84109002 A TW84109002 A TW 84109002A TW 280064 B TW280064 B TW 280064B
Authority
TW
Taiwan
Application number
TW084109002A
Original Assignee
Radio Frequency Systems 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
Application filed by Radio Frequency Systems Inc filed Critical Radio Frequency Systems Inc
Application granted granted Critical
Publication of TW280064B publication Critical patent/TW280064B/zh

Links

Classifications

    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • 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
    • 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
    • H01Q3/30—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 relative phase between the radiating elements of an array
    • H01Q3/34—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 relative phase between the radiating elements of an array by electrical means
    • H01Q3/40—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 relative phase between the radiating elements of an array by electrical means with phasing matrix
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H03F3/602—Combinations of several amplifiers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03522—Frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Microwave Amplifiers (AREA)
TW084109002A 1994-09-29 1995-08-29 TW280064B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31489894A 1994-09-29 1994-09-29

Publications (1)

Publication Number Publication Date
TW280064B true TW280064B (zh) 1996-07-01

Family

ID=23221960

Family Applications (1)

Application Number Title Priority Date Filing Date
TW084109002A TW280064B (zh) 1994-09-29 1995-08-29

Country Status (11)

Country Link
US (1) US5790517A (zh)
EP (1) EP0704964A3 (zh)
JP (1) JPH08204473A (zh)
KR (1) KR960012756A (zh)
CN (1) CN1135119A (zh)
AU (1) AU702139B2 (zh)
BR (1) BR9504129A (zh)
CA (1) CA2158330A1 (zh)
FI (1) FI954610A (zh)
NO (1) NO953605L (zh)
TW (1) TW280064B (zh)

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Publication number Priority date Publication date Assignee Title
MX9505173A (es) * 1995-07-19 1997-05-31 Radio Frequency Systems Inc Sistema de reparticion de energia para amplificadores de rf.
US6185182B1 (en) 1996-07-26 2001-02-06 Radio Frequency Systems, Inc. Power sharing amplifier system for a cellular communications system
US5825762A (en) * 1996-09-24 1998-10-20 Motorola, Inc. Apparatus and methods for providing wireless communication to a sectorized coverage area
US5955920A (en) * 1997-07-29 1999-09-21 Metawave Communications Corporation Signal feed matrix LPA reduction system and method
US5917371A (en) * 1997-07-29 1999-06-29 Metawave Communications Corporation Signal feed matrix amplifier reduction system and method
US6006111A (en) * 1997-10-08 1999-12-21 Nortel Networks Corporation Self-balancing matrix amplifier
US6381212B1 (en) 1998-06-17 2002-04-30 Radio Frequency Systems, Inc. Power sharing amplifier system for amplifying multiple input signals with shared power amplifiers
IL129417A0 (en) * 1998-06-17 2000-02-17 Radio Frequency Systems Inc A power sharing amplifier system for a cellular communications system
KR100326314B1 (ko) * 1998-08-03 2002-06-24 윤종용 이동통신시스템의기지국에서송신전력을제한하기위한송신스위칭다이버시티송신장치및방법
JP2000078072A (ja) * 1998-08-28 2000-03-14 Hitachi Ltd 送受信装置
SE9902984L (sv) * 1999-08-24 2001-02-25 Ericsson Telefon Ab L M Förfarande och anordning relaterande till ett radiokommunikationsnät
US6587013B1 (en) 2000-02-16 2003-07-01 Signal Technology Corporation RF power combiner circuit with spaced capacitive stub
JP2001267939A (ja) * 2000-03-21 2001-09-28 Matsushita Electric Ind Co Ltd 送信装置
US6545564B1 (en) 2000-04-25 2003-04-08 Signal Technology Corporation RF signal divider
US6859643B1 (en) 2000-08-04 2005-02-22 Lucent Technologies Inc. Power amplifier sharing in a wireless communication system with amplifier pre-distortion
US7054384B1 (en) * 2000-08-04 2006-05-30 Lucent Technologies Inc. Power amplifier sharing in a wireless communication system with transmit diversity
US20030109282A1 (en) * 2001-12-06 2003-06-12 Itzhak Shperling Method and base station for providing phase-shift transmit diversity
US6892058B2 (en) * 2003-03-26 2005-05-10 Motorola, Inc. Method and apparatus for facilitating fault tolerance in a radio frequency amplifier system
CN100353776C (zh) * 2004-05-12 2007-12-05 华为技术有限公司 一种基站功率发射通道传输信号的方法和装置
CN100353785C (zh) * 2004-06-04 2007-12-05 华为技术有限公司 基站功率发射通道传输信号的方法和装置
DE102006028690A1 (de) * 2006-06-22 2008-01-03 Siemens Ag Verstärkereinrichtung für eine Modenantenne
FR2904897B1 (fr) * 2006-08-10 2008-09-26 Alcatel Sa Dispositif d'amplification large bande
US9240813B2 (en) 2012-12-05 2016-01-19 Telefonaktiebolaget L M Ericsson (Publ) Distributed digitally convertible radio (DDCR)
US9882612B2 (en) 2014-04-30 2018-01-30 Telefonaktiebolaget Lm Ericsson (Publ) Multi-sector antenna integrated radio unit

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US3783385A (en) * 1972-11-28 1974-01-01 Itt Digital diversity combiner
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US4091387A (en) * 1977-05-05 1978-05-23 Rca Corporation Beam forming network
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US5245347A (en) * 1980-12-29 1993-09-14 Raytheon Company All weather tactical strike system (AWTSS) and method of operation
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US4603408A (en) * 1983-07-21 1986-07-29 The United States Of America As Represented By The Secretary Of The Navy Synthesis of arbitrary broadband signals for a parametric array
US4647868A (en) * 1985-03-25 1987-03-03 General Electric Company Push-pull radio-frequency power splitter/combiner apparatus
US4689631A (en) * 1985-05-28 1987-08-25 American Telephone And Telegraph Company, At&T Bell Laboratories Space amplifier
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Also Published As

Publication number Publication date
FI954610A0 (fi) 1995-09-28
CN1135119A (zh) 1996-11-06
NO953605D0 (no) 1995-09-13
JPH08204473A (ja) 1996-08-09
AU702139B2 (en) 1999-02-11
AU3038395A (en) 1996-04-18
BR9504129A (pt) 1996-07-30
CA2158330A1 (en) 1996-03-30
US5790517A (en) 1998-08-04
EP0704964A3 (en) 1998-09-09
KR960012756A (ko) 1996-04-20
FI954610A (fi) 1996-03-30
NO953605L (no) 1996-04-01
EP0704964A2 (en) 1996-04-03

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