DE60025479D1 - Eingangsansteuerungsbegrenzer zur optimierung eines linearen wanderfeldröhrenverstärkers - Google Patents

Eingangsansteuerungsbegrenzer zur optimierung eines linearen wanderfeldröhrenverstärkers

Info

Publication number
DE60025479D1
DE60025479D1 DE60025479T DE60025479T DE60025479D1 DE 60025479 D1 DE60025479 D1 DE 60025479D1 DE 60025479 T DE60025479 T DE 60025479T DE 60025479 T DE60025479 T DE 60025479T DE 60025479 D1 DE60025479 D1 DE 60025479D1
Authority
DE
Germany
Prior art keywords
optimizing
input control
drive amplifier
hand drive
control limiter
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
Application number
DE60025479T
Other languages
English (en)
Other versions
DE60025479T2 (de
Inventor
F Kirkman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DirecTV Group Inc
Original Assignee
Hughes Electronics Corp
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 Hughes Electronics Corp filed Critical Hughes Electronics Corp
Application granted granted Critical
Publication of DE60025479D1 publication Critical patent/DE60025479D1/de
Publication of DE60025479T2 publication Critical patent/DE60025479T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices
    • H03F3/58—Amplifiers using transit-time effect in tubes or semiconductor devices using travelling-wave tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Microwave Amplifiers (AREA)
DE60025479T 1999-04-21 2000-04-19 Eingangsansteuerungsbegrenzer zur optimierung eines linearen wanderfeldröhrenverstärkers Expired - Lifetime DE60025479T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/295,720 US6369648B1 (en) 1999-04-21 1999-04-21 Linear traveling wave tube amplifier utilizing input drive limiter for optimization
US295720 1999-04-21
PCT/US2000/010507 WO2000064047A1 (en) 1999-04-21 2000-04-19 Linear traveling wave tube amplifier utilizing input drive limiter for optimization

Publications (2)

Publication Number Publication Date
DE60025479D1 true DE60025479D1 (de) 2006-04-06
DE60025479T2 DE60025479T2 (de) 2006-09-28

Family

ID=23138955

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60025479T Expired - Lifetime DE60025479T2 (de) 1999-04-21 2000-04-19 Eingangsansteuerungsbegrenzer zur optimierung eines linearen wanderfeldröhrenverstärkers

Country Status (6)

Country Link
US (1) US6369648B1 (de)
EP (1) EP1090457B9 (de)
JP (2) JP4001719B2 (de)
CA (1) CA2342155C (de)
DE (1) DE60025479T2 (de)
WO (1) WO2000064047A1 (de)

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US6754287B2 (en) * 2001-03-21 2004-06-22 Skyworks Solutions, Inc. Method and apparatus for producing a modulated signal
US7184489B2 (en) * 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US7245671B1 (en) * 2001-04-27 2007-07-17 The Directv Group, Inc. Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
US7483505B2 (en) * 2001-04-27 2009-01-27 The Directv Group, Inc. Unblind equalizer architecture for digital communication systems
US7778365B2 (en) * 2001-04-27 2010-08-17 The Directv Group, Inc. Satellite TWTA on-line non-linearity measurement
US7173981B1 (en) * 2001-04-27 2007-02-06 The Directv Group, Inc. Dual layer signal processing in a layered modulation digital signal system
US7639759B2 (en) * 2001-04-27 2009-12-29 The Directv Group, Inc. Carrier to noise ratio estimations from a received signal
WO2004040406A2 (en) * 2001-04-27 2004-05-13 The Directv Group, Inc. Estimating the operating point on a nonlinear traveling wave tube amplifier
US7502430B2 (en) * 2001-04-27 2009-03-10 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US7209524B2 (en) * 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
US7471735B2 (en) * 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7423987B2 (en) * 2001-04-27 2008-09-09 The Directv Group, Inc. Feeder link configurations to support layered modulation for digital signals
US7583728B2 (en) * 2002-10-25 2009-09-01 The Directv Group, Inc. Equalizers for layered modulated and other signals
US7822154B2 (en) * 2001-04-27 2010-10-26 The Directv Group, Inc. Signal, interference and noise power measurement
US8005035B2 (en) * 2001-04-27 2011-08-23 The Directv Group, Inc. Online output multiplexer filter measurement
IL145110A0 (en) * 2001-08-24 2002-06-30 Phone Or Ltd Optical microphone noise suppression system
EP1540909A4 (de) * 2002-07-01 2007-10-17 Directv Group Inc Verbessern der hierarchischen 8psk-leistung
TWI279113B (en) * 2002-07-03 2007-04-11 Hughes Electronics Corp Method and apparatus for layered modulation
US7230480B2 (en) * 2002-10-25 2007-06-12 The Directv Group, Inc. Estimating the operating point on a non-linear traveling wave tube amplifier
US7474710B2 (en) * 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
EP1563620B1 (de) * 2002-10-25 2012-12-05 The Directv Group, Inc. Signalprozessor für geschichtete Modulation mit niedrigerer Komplexität
US7529312B2 (en) * 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
FR2846812B1 (fr) * 2002-11-05 2005-01-28 Eads Defence & Security Ntwk Perfectionnement aux procedes et dispositifs d'apprentissage d'un dispositif de linearisation d'un amplificateur rf
FR2846813B1 (fr) * 2002-11-05 2005-01-28 Eads Defence & Security Ntwk Procede et dispositif d'apprentissage d'un dispositif de linearisation d'un amplificateur rf, et terminal mobile incorporant un tel dispositif
FI115935B (fi) * 2003-02-25 2005-08-15 Nokia Corp Menetelmä ja laite tehovahvistimen ominaisuuksien säätämiseksi
US6747484B1 (en) * 2003-04-22 2004-06-08 Raytheon Company Radio frequency limiter circuit
US7502429B2 (en) * 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements
US20060039498A1 (en) * 2004-08-19 2006-02-23 De Figueiredo Rui J P Pre-distorter for orthogonal frequency division multiplexing systems and method of operating the same
US7400200B2 (en) * 2006-03-17 2008-07-15 Avago Technologies Wireless Ip Pte Ltd Linear variable gain traveling wave amplifier
CN101969298B (zh) * 2010-09-30 2012-09-26 中国船舶重工集团公司第七二三研究所 宽带大功率行波管放大器
US8958184B2 (en) * 2010-12-28 2015-02-17 Infineon Technologies Ag ESD protection devices and methods
FR3013536B1 (fr) * 2013-11-18 2016-01-01 Thales Sa Limiteur de puissance radiofrequence ameliore; chaine d'emission et/ou de reception radiofrequence et etage d'amplification faible bruit associes 
GB201518859D0 (en) * 2015-10-23 2015-12-09 Airbus Defence & Space Ltd High-efficiency amplifier
CN117169975B (zh) * 2023-04-20 2024-06-11 中国人民解放军国防科技大学 一种间接探测hpm脉冲的预警装置及其使用方法

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Publication number Priority date Publication date Assignee Title
US4066965A (en) 1976-09-28 1978-01-03 The United States Of America As Represented By The Secretary Of The Navy RF GTWT Saturating circuit
US4220929A (en) * 1978-12-26 1980-09-02 Dbx, Inc. Signal expander
US4398157A (en) 1981-01-29 1983-08-09 Rca Corporation Signal expander/compressor with adaptive control circuit
US4691173A (en) 1985-05-31 1987-09-01 Hughes Aircraft Company RF input drive saturation control loop
US5622939A (en) 1992-08-21 1997-04-22 Alpha-Beta Technology, Inc. Glucan preparation
US5177453A (en) * 1991-07-01 1993-01-05 Raytheon Company Gain control amplifier
US5633939A (en) * 1993-12-20 1997-05-27 Fujitsu Limited Compander circuit
US5631968A (en) 1995-06-06 1997-05-20 Analog Devices, Inc. Signal conditioning circuit for compressing audio signals
US5999047A (en) * 1996-11-25 1999-12-07 Space Systems/Loral, Inc. Linearizer for use with RF power amplifiers
US5789978A (en) * 1996-11-25 1998-08-04 Space Systems/Loral, Inc. Ku-band linearizer bridge

Also Published As

Publication number Publication date
DE60025479T2 (de) 2006-09-28
JP2005295597A (ja) 2005-10-20
CA2342155A1 (en) 2000-10-26
EP1090457B9 (de) 2006-06-28
JP4001719B2 (ja) 2007-10-31
EP1090457A1 (de) 2001-04-11
WO2000064047A1 (en) 2000-10-26
EP1090457B1 (de) 2006-01-11
US6369648B1 (en) 2002-04-09
CA2342155C (en) 2005-03-22
JP2002542704A (ja) 2002-12-10

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication related to discontinuation of the patent is to be deleted
8364 No opposition during term of opposition