DE69822492D1 - Anpassungsverfahren und verstärkeranordnung - Google Patents

Anpassungsverfahren und verstärkeranordnung

Info

Publication number
DE69822492D1
DE69822492D1 DE69822492T DE69822492T DE69822492D1 DE 69822492 D1 DE69822492 D1 DE 69822492D1 DE 69822492 T DE69822492 T DE 69822492T DE 69822492 T DE69822492 T DE 69822492T DE 69822492 D1 DE69822492 D1 DE 69822492D1
Authority
DE
Germany
Prior art keywords
signal
amplifier
arrangement
amplifier arrangement
adaptation
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
DE69822492T
Other languages
English (en)
Inventor
Toni Neffling
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE69822492D1 publication Critical patent/DE69822492D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Steroid Compounds (AREA)
  • Compositions Of Oxide Ceramics (AREA)
DE69822492T 1997-10-29 1998-10-27 Anpassungsverfahren und verstärkeranordnung Expired - Lifetime DE69822492D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI974087A FI104021B (fi) 1997-10-29 1997-10-29 Adaptaatiomenetelmä ja vahvistinjärjestely
PCT/FI1998/000836 WO1999025073A2 (en) 1997-10-29 1998-10-27 Adaptation method and amplifier arrangement

Publications (1)

Publication Number Publication Date
DE69822492D1 true DE69822492D1 (de) 2004-04-22

Family

ID=8549824

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69822492T Expired - Lifetime DE69822492D1 (de) 1997-10-29 1998-10-27 Anpassungsverfahren und verstärkeranordnung

Country Status (10)

Country Link
US (1) US6229391B1 (de)
EP (1) EP1025637B1 (de)
JP (1) JP2001523061A (de)
CN (1) CN1164024C (de)
AT (1) ATE262234T1 (de)
AU (1) AU9631998A (de)
DE (1) DE69822492D1 (de)
FI (1) FI104021B (de)
NO (1) NO20002210L (de)
WO (1) WO1999025073A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0004479D0 (sv) 2000-12-05 2000-12-05 Ericsson Telefon Ab L M Method and arrangement relating to electronic compensation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922617A (en) * 1974-11-18 1975-11-25 Cutler Hammer Inc Adaptive feed forward system
GB2107540B (en) * 1981-10-14 1985-06-26 Marconi Co Ltd Feedforward amplifiers
US4580105A (en) * 1985-01-25 1986-04-01 At&T Bell Laboratories Automatic reduction of intermodulation products in high power linear amplifiers
GB9009295D0 (en) * 1990-04-25 1990-06-20 Kenington Peter B Apparatus and method for reducing distortion in amplification
US5455537A (en) * 1994-08-19 1995-10-03 Radio Frequency Systems, Inc. Feed forward amplifier
JP3361657B2 (ja) * 1995-07-20 2003-01-07 松下電器産業株式会社 フィードフォワード増幅器の制御装置および制御方法
US5892397A (en) * 1996-03-29 1999-04-06 Spectrian Adaptive compensation of RF amplifier distortion by injecting predistortion signal derived from respectively different functions of input signal amplitude
US6066984A (en) * 1998-03-16 2000-05-23 Hitachi Denshi Kabushiki Kaisha Amplifier and amplifying method for amplifying a plurality of signals having different bands simultaneously

Also Published As

Publication number Publication date
EP1025637A2 (de) 2000-08-09
FI974087A0 (fi) 1997-10-29
ATE262234T1 (de) 2004-04-15
CN1278374A (zh) 2000-12-27
WO1999025073A2 (en) 1999-05-20
NO20002210D0 (no) 2000-04-28
EP1025637B1 (de) 2004-03-17
JP2001523061A (ja) 2001-11-20
CN1164024C (zh) 2004-08-25
FI104021B1 (fi) 1999-10-29
AU9631998A (en) 1999-05-31
FI104021B (fi) 1999-10-29
FI974087A (fi) 1999-04-30
WO1999025073A3 (en) 1999-07-15
NO20002210L (no) 2000-04-28
US6229391B1 (en) 2001-05-08

Similar Documents

Publication Publication Date Title
EP1014564A3 (de) Vorwärtskopplungsverstärker
EP1224731A4 (de) Verbesserte vorverzerrungskompensation für einen leistungsverstärker
JP3106996B2 (ja) フィードフォワード増幅回路
EP1684416A1 (de) Methode zur Verringerung von Intermodulationsprodukten eines Feedforward-Verstärkers unter Verwendung eines gering verzerrenden Verstärkers
KR970018994A (ko) 입력 신호를 증폭하는 증폭기 회로 및 입력 신호 증폭 방법(low distortion amplifier circuit with improved output power)
DE69131230D1 (de) Lineare verstärkungsregelung eines verstärkers
EP0913934A3 (de) Empfängervorrichtung
SE9701760L (sv) Linjär efektförstärkare
WO1995028034A3 (en) Signal amplifier system with improved echo cancellation
US5874856A (en) Feed forward amplifier
US6320461B1 (en) Ultra-linear feedforward RF power amplifier
CA2293337A1 (en) Dynamic predistortion compensation for a power amplifier
SE9602585L (sv) Anordning och förfarande för fasdistorsionskompensering
GB9926886D0 (en) Linerisation of an amplifier
DK1398993T3 (da) Apparat og fremgangsmåde til tilbagekoblingskompensation i et akustisk forstærkningssystem, især i et høreapparat
DE69616291D1 (de) Ausserbandkompensation für nichtlineare vorrichtung
EP1309081A3 (de) Vorwärtsgekoppelter Verstärker zum Kompensieren nicht-linearer Verzerrung
SE9704284D0 (sv) En förstärkare och ett förfarande i förstärkaren
DE69822492D1 (de) Anpassungsverfahren und verstärkeranordnung
DK1406469T3 (da) Tilbagekoblingskompensator til et akustisk forstærkningssystem, høreapparat, fremgangsmåde til tilbagekoblingskompensation og anvendelse af fremgangsmåden i et høreapparat
EP0986168A3 (de) Schaltung zum Reduzieren von Verzerrungen mit Vorwärtskopplung ohne Pilotton
ATE164478T1 (de) Verfahren und anordnung zur steuerung eines hochfrequenz-leistungsverstärkers
EP1280271A3 (de) Vorwärtsgekoppelter Verstärkervorrichtung und Verfahren
NO20002211L (no) FremgangsmÕte for styring, samt styringsanordning
UA72936C2 (en) Method for compensating signal distortions caused by an amplifier

Legal Events

Date Code Title Description
8332 No legal effect for de