WO1991016761A1 - Circuit de frequence radio actif a large bande - Google Patents

Circuit de frequence radio actif a large bande Download PDF

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Publication number
WO1991016761A1
WO1991016761A1 PCT/FI1991/000117 FI9100117W WO9116761A1 WO 1991016761 A1 WO1991016761 A1 WO 1991016761A1 FI 9100117 W FI9100117 W FI 9100117W WO 9116761 A1 WO9116761 A1 WO 9116761A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
wide
changed
transistor
band
Prior art date
Application number
PCT/FI1991/000117
Other languages
English (en)
Inventor
Juha Nikkanen
Original Assignee
Teleste Antenni Oy
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 Teleste Antenni Oy filed Critical Teleste Antenni Oy
Publication of WO1991016761A1 publication Critical patent/WO1991016761A1/fr

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
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/083—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements in transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/191—Tuned amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

La présente invention se rapporte à un circuit de fréquence radio (HF) à large bande qui se caractérise par le fait que la tension de service du circuit est fournie à travers des éléments de couplage (S1-S4) par l'intermédiaire desquels la polarité du circuit peut être changée s'il est souhaité, de sorte que l'étage à transistor (T1) fonctionne soit comme un amplificateur ou comme un suiveur de tension sans que les pôles d'entrée ou de sortie (ENTREE HF, SORTIE HF) du signal-HF ne soient changés.
PCT/FI1991/000117 1990-04-25 1991-04-18 Circuit de frequence radio actif a large bande WO1991016761A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI902063A FI87029C (fi) 1990-04-25 1990-04-25 Bredbandig aktiv rf-krets
FI902063 1990-04-25

Publications (1)

Publication Number Publication Date
WO1991016761A1 true WO1991016761A1 (fr) 1991-10-31

Family

ID=8530330

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1991/000117 WO1991016761A1 (fr) 1990-04-25 1991-04-18 Circuit de frequence radio actif a large bande

Country Status (2)

Country Link
FI (1) FI87029C (fr)
WO (1) WO1991016761A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241284A (en) * 1990-02-16 1993-08-31 Nokia Mobile Phones Ltd. Circuit arrangement for connecting RF amplifier and supply voltage filter
WO1993021703A1 (fr) * 1992-04-15 1993-10-28 Coachline Video Express Pty Ltd Systeme de distribution de signaux

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0368528A2 (fr) * 1988-11-09 1990-05-16 STMicroelectronics S.r.l. Amplificateur audio avec états d'attente et muets

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0368528A2 (fr) * 1988-11-09 1990-05-16 STMicroelectronics S.r.l. Amplificateur audio avec états d'attente et muets

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 11, No. 341, E554; & JP,A,62 122 306, MITSUBISHI ELECTRIC CORP, 03-06-1987. *
PATENT ABSTRACTS OF JAPAN, Vol. 11, No. 376, E563; & JP,A,62 143 511, 26-06-1987, HITACHI LTD, see "purpose". *
PATENT ABSTRACTS OF JAPAN, Vol. 8, No. 277, E285; & JP,A,59 147 514, ROOMU K.K., 23-08-1984. *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241284A (en) * 1990-02-16 1993-08-31 Nokia Mobile Phones Ltd. Circuit arrangement for connecting RF amplifier and supply voltage filter
WO1993021703A1 (fr) * 1992-04-15 1993-10-28 Coachline Video Express Pty Ltd Systeme de distribution de signaux

Also Published As

Publication number Publication date
FI902063A0 (fi) 1990-04-25
FI902063A (fi) 1991-10-26
FI87029C (fi) 1992-11-10
FI87029B (fi) 1992-07-31

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