DE3854763T2 - Verfahren zum Überprüfen eines Verstärkers zur Feststellung von durch Intermodulationsprodukte verursachte Verzerrungscharakteristiken. - Google Patents

Verfahren zum Überprüfen eines Verstärkers zur Feststellung von durch Intermodulationsprodukte verursachte Verzerrungscharakteristiken.

Info

Publication number
DE3854763T2
DE3854763T2 DE3854763T DE3854763T DE3854763T2 DE 3854763 T2 DE3854763 T2 DE 3854763T2 DE 3854763 T DE3854763 T DE 3854763T DE 3854763 T DE3854763 T DE 3854763T DE 3854763 T2 DE3854763 T2 DE 3854763T2
Authority
DE
Germany
Prior art keywords
checking
amplifier
distortion characteristics
intermodulation products
characteristics caused
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 - Fee Related
Application number
DE3854763T
Other languages
English (en)
Other versions
DE3854763D1 (de
Inventor
Christopher John Andrews
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.)
Racal Communications Equipment Ltd
Original Assignee
Racal Communications Equipment Ltd
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 Racal Communications Equipment Ltd filed Critical Racal Communications Equipment Ltd
Application granted granted Critical
Publication of DE3854763D1 publication Critical patent/DE3854763D1/de
Publication of DE3854763T2 publication Critical patent/DE3854763T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • G01R23/20—Measurement of non-linear distortion
DE3854763T 1987-04-28 1988-03-24 Verfahren zum Überprüfen eines Verstärkers zur Feststellung von durch Intermodulationsprodukte verursachte Verzerrungscharakteristiken. Expired - Fee Related DE3854763T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8709998A GB2204202B (en) 1987-04-28 1987-04-28 Radio transmitters

Publications (2)

Publication Number Publication Date
DE3854763D1 DE3854763D1 (de) 1996-01-18
DE3854763T2 true DE3854763T2 (de) 1996-09-05

Family

ID=10616461

Family Applications (2)

Application Number Title Priority Date Filing Date
DE88302588T Expired - Fee Related DE3879259T2 (de) 1987-04-28 1988-03-24 Rundfunksender.
DE3854763T Expired - Fee Related DE3854763T2 (de) 1987-04-28 1988-03-24 Verfahren zum Überprüfen eines Verstärkers zur Feststellung von durch Intermodulationsprodukte verursachte Verzerrungscharakteristiken.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE88302588T Expired - Fee Related DE3879259T2 (de) 1987-04-28 1988-03-24 Rundfunksender.

Country Status (4)

Country Link
US (1) US4890300A (de)
EP (2) EP0289130B1 (de)
DE (2) DE3879259T2 (de)
GB (2) GB2204202B (de)

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US5798674A (en) * 1997-04-08 1998-08-25 Raytheon Company Band Limited AM modulator using linear power amplification
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US6282247B1 (en) * 1997-09-12 2001-08-28 Ericsson Inc. Method and apparatus for digital compensation of radio distortion over a wide range of temperatures
US6239657B1 (en) 1998-03-27 2001-05-29 Rohde & Schwarz Gmbh & Co. Kg Method and device for measuring the distortion of a high-frequency power amplifier and method and means for automatically equalizing a high-frequency power amplifier
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GB2339917A (en) * 1998-07-21 2000-02-09 Ifr Limited Generating a multitone test signal
US6304594B1 (en) 1998-07-27 2001-10-16 General Dynamics Government Systems Corporation Interference detection and avoidance technique
US6212229B1 (en) 1998-12-16 2001-04-03 General Dynamics Government Systems Corporation Adaptive pre-emphasis technique
GB2347031B (en) * 1999-02-12 2001-03-21 Wireless Systems Int Ltd Signal processing means
EP1151531B1 (de) 1999-02-12 2003-05-02 Wireless Systems International Limited Signalverarbeitungsvorrichtung
DE69940998D1 (de) * 1999-06-30 2009-07-30 Alcatel Lucent Verfahren zur breitbandigen Linearisierung von Leistungsverstärkern
US6724177B2 (en) 2000-12-14 2004-04-20 Tropian, Inc. Method and apparatus for accurate measurement of communications signals
US7058369B1 (en) 2001-11-21 2006-06-06 Pmc-Sierra Inc. Constant gain digital predistortion controller for linearization of non-linear amplifiers
US7248642B1 (en) * 2002-02-05 2007-07-24 Andrew Corporation Frequency-dependent phase pre-distortion for reducing spurious emissions in communication networks
US7197085B1 (en) 2002-03-08 2007-03-27 Andrew Corporation Frequency-dependent magnitude pre-distortion for reducing spurious emissions in communication networks
US7266159B2 (en) * 2002-03-08 2007-09-04 Andrew Corporation Frequency-dependent magnitude pre-distortion on non-baseband input signals for reducing spurious emissions in communication networks
DE10219340B4 (de) * 2002-04-30 2014-02-20 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Einrichtung zum Messen von Intermodulationsverzerrungen
US8380143B2 (en) 2002-05-01 2013-02-19 Dali Systems Co. Ltd Power amplifier time-delay invariant predistortion methods and apparatus
US6985704B2 (en) 2002-05-01 2006-01-10 Dali Yang System and method for digital memorized predistortion for wireless communication
US8064850B2 (en) 2002-05-01 2011-11-22 Dali Systems Co., Ltd. High efficiency linearization power amplifier for wireless communication
US8811917B2 (en) 2002-05-01 2014-08-19 Dali Systems Co. Ltd. Digital hybrid mode power amplifier system
US8472897B1 (en) 2006-12-22 2013-06-25 Dali Systems Co. Ltd. Power amplifier predistortion methods and apparatus
US7139327B2 (en) * 2002-06-10 2006-11-21 Andrew Corporation Digital pre-distortion of input signals for reducing spurious emissions in communication networks
US7251293B2 (en) * 2003-06-27 2007-07-31 Andrew Corporation Digital pre-distortion for the linearization of power amplifiers with asymmetrical characteristics
CN100499357C (zh) * 2004-10-28 2009-06-10 三菱电机株式会社 线性化电路
US7596326B2 (en) * 2005-10-27 2009-09-29 Emcore Corporation Distortion cancellation circuitry for optical receivers
US7634198B2 (en) * 2006-06-21 2009-12-15 Emcore Corporation In-line distortion cancellation circuits for linearization of electronic and optical signals with phase and frequency adjustment
US20080130785A1 (en) * 2006-12-04 2008-06-05 Raytheon Company Frequency and temperature dependent pre-distortion
US9026067B2 (en) 2007-04-23 2015-05-05 Dali Systems Co. Ltd. Remotely reconfigurable power amplifier system and method
CN104202279A (zh) * 2006-12-26 2014-12-10 大力系统有限公司 用于多信道宽带通信系统中的基带预失真线性化的方法和系统
US8274332B2 (en) 2007-04-23 2012-09-25 Dali Systems Co. Ltd. N-way Doherty distributed power amplifier with power tracking
EP2145385B1 (de) * 2007-04-23 2018-10-17 Dali Systems Co. Ltd N-fach verteilter doherty-leistungsverstärker
US8224266B2 (en) * 2007-08-30 2012-07-17 Dali Systems Co., Ltd. Power amplifier predistortion methods and apparatus using envelope and phase detector
JP5250636B2 (ja) 2007-12-07 2013-07-31 ダリ システムズ カンパニー リミテッド ベースバンド導出ｒｆデジタルプリディストーション
US8331879B2 (en) * 2008-10-15 2012-12-11 Research In Motion Limited Multi-dimensional Volterra series transmitter linearization
KR102136940B1 (ko) 2010-09-14 2020-07-23 달리 시스템즈 씨오. 엘티디. 원격으로 재구성가능한 분산 안테나 시스템 및 방법
US8711976B2 (en) 2011-05-12 2014-04-29 Andrew Llc Pre-distortion architecture for compensating non-linear effects
US10145729B2 (en) * 2012-05-22 2018-12-04 Teknologian Tutkimuskeskus Vtt Oy Intermodulation sensor platform based on mechanical resonator
EP3236584B8 (de) 2016-04-18 2020-08-26 Rohde & Schwarz GmbH & Co. KG Verstärkervorrichtung für hochfrequenzsignale

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FR2371817B1 (fr) * 1976-11-19 1980-09-05 Thomson Csf Dispositif correcteur de distorsion des etages d'amplification transistorises a large bande et amplificateur comportant de tels dispositifs
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Also Published As

Publication number Publication date
GB2245115A (en) 1991-12-18
GB2204202B (en) 1991-11-27
GB9109898D0 (en) 1991-07-03
EP0289130B1 (de) 1993-03-17
DE3879259D1 (de) 1993-04-22
EP0499346B1 (de) 1995-12-06
GB2245115B (en) 1992-03-11
EP0289130A3 (en) 1989-03-08
DE3879259T2 (de) 1993-10-07
GB2204202A (en) 1988-11-02
US4890300A (en) 1989-12-26
EP0499346A1 (de) 1992-08-19
DE3854763D1 (de) 1996-01-18
EP0289130A2 (de) 1988-11-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee