FR2391593A1 - Etage de transposition en quadrature - Google Patents

Etage de transposition en quadrature

Info

Publication number
FR2391593A1
FR2391593A1 FR7814891A FR7814891A FR2391593A1 FR 2391593 A1 FR2391593 A1 FR 2391593A1 FR 7814891 A FR7814891 A FR 7814891A FR 7814891 A FR7814891 A FR 7814891A FR 2391593 A1 FR2391593 A1 FR 2391593A1
Authority
FR
France
Prior art keywords
transposition stage
quadrature
quadrature transposition
filters
gyrator
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.)
Granted
Application number
FR7814891A
Other languages
English (en)
Other versions
FR2391593B1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2391593A1 publication Critical patent/FR2391593A1/fr
Application granted granted Critical
Publication of FR2391593B1 publication Critical patent/FR2391593B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/60—Modulators in which carrier or one sideband is wholly or partially suppressed with one sideband wholly or partially suppressed
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/08—Frequency selective two-port networks using gyrators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/34—Networks for connecting several sources or loads working on different frequencies or frequency bands, to a common load or source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/36—Networks for connecting several sources or loads, working on the same frequency band, to a common load or source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
    • H04L27/1525—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements using quadrature demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplitude Modulation (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)

Abstract

Dans un étage de transposition en quadrature formé par deux chaînes reliées à une entrée commune et comportant chacune un modulateur suivi d'un filtre, l'inégalité fonction de la fréquence entre les deux filtres est fortement réduite grâce à un couplage réciproque des filtres sous la forme d'au moins un gyrateur. Application aux systèmes de communication.
FR7814891A 1977-05-20 1978-05-19 Etage de transposition en quadrature Granted FR2391593A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7705552A NL7705552A (nl) 1977-05-20 1977-05-20 Quadratuurtranspositietrap.

Publications (2)

Publication Number Publication Date
FR2391593A1 true FR2391593A1 (fr) 1978-12-15
FR2391593B1 FR2391593B1 (fr) 1983-04-29

Family

ID=19828589

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814891A Granted FR2391593A1 (fr) 1977-05-20 1978-05-19 Etage de transposition en quadrature

Country Status (9)

Country Link
US (1) US4193033A (fr)
JP (1) JPS6056006B2 (fr)
AU (1) AU513425B2 (fr)
CA (1) CA1135801A (fr)
DE (1) DE2821082C3 (fr)
FR (1) FR2391593A1 (fr)
GB (1) GB1563187A (fr)
NL (1) NL7705552A (fr)
SE (1) SE7805612L (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098665A2 (fr) * 1982-07-07 1984-01-18 Philips Electronics Uk Limited Démodulateur de données pour un signal à modulation de fréquence directe
EP0151334A2 (fr) * 1983-07-14 1985-08-14 Stc Plc Récepteur radio à conversion directe pour modulation de fréquence
EP0153835A2 (fr) * 1984-03-01 1985-09-04 Stc Plc Récepteur radio
EP0394064A2 (fr) * 1989-04-20 1990-10-24 Nec Corporation Récepteur à conversion directe avec une fréquence porteuse locale présentant une gigue pour la détection d'une fréquence porteuse transmise

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612509A (en) * 1983-01-13 1986-09-16 Paradyne Corporation Frequency shift keyed demodulator
JPS61171207A (ja) * 1985-01-25 1986-08-01 Nec Corp 受信機
GB2192104A (en) * 1986-06-27 1987-12-31 Philips Electronic Associated Superheterodyne radio receiver
GB2208340B (en) * 1987-07-17 1992-01-22 Plessey Co Plc Electrical circuits
DE3733374A1 (de) * 1987-10-02 1989-05-11 Messerschmitt Boelkow Blohm Verfahren und vorrichtung zur linearen verstaerkung von signalen in satellitentranspondern
DE4340722C1 (de) * 1993-11-30 1995-04-27 Deutsche Forsch Luft Raumfahrt Einrichtung zum sendeseitigen Unterdrücken eines bei Modulation entstehenden Restträgers
US7689189B2 (en) * 2005-04-06 2010-03-30 Silicon Laboratories Inc. Circuit and method for signal reception using a low intermediate frequency reception
US7405613B2 (en) * 2005-04-06 2008-07-29 Integration Associates Inc. Differential slope demodulator for low-IF frequencies
GB2489440A (en) * 2011-03-25 2012-10-03 Toshiba Res Europ Ltd A crossover network comprising cascaded filter sections having conjugate phase responses

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828281A (en) * 1973-02-26 1974-08-06 Lorain Prod Corp Impedance simulating circuit for transmission lines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3644851A (en) * 1969-05-02 1972-02-22 Bell Telephone Labor Inc Five-port gyrator circuit wherein gyrator action is produced between two nonterminated ports
US3568067A (en) * 1969-06-13 1971-03-02 Collins Radio Co Frequency discriminator with output indicative of difference between input and local reference signals
US3713050A (en) * 1971-05-11 1973-01-23 Bell Telephone Labor Inc Integrated circuit transformers employing gyrators
NL165893C (nl) * 1973-07-23 1981-05-15 Philips Nv Inrichting met een gyratorresonantiekring.
US3824496A (en) * 1973-09-28 1974-07-16 Hekimian Laboratories Inc Gyrator circuits comprising operational amplifiers and oscillating utilizing same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828281A (en) * 1973-02-26 1974-08-06 Lorain Prod Corp Impedance simulating circuit for transmission lines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV8078/56 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098665A2 (fr) * 1982-07-07 1984-01-18 Philips Electronics Uk Limited Démodulateur de données pour un signal à modulation de fréquence directe
EP0098665A3 (fr) * 1982-07-07 1984-05-30 Philips Electronics Uk Limited Démodulateur de données pour un signal à modulation de fréquence directe
EP0151334A2 (fr) * 1983-07-14 1985-08-14 Stc Plc Récepteur radio à conversion directe pour modulation de fréquence
EP0151334A3 (fr) * 1983-07-14 1986-11-20 Stc Plc Récepteur radio à conversion directe pour modulation de fréquence
EP0153835A2 (fr) * 1984-03-01 1985-09-04 Stc Plc Récepteur radio
EP0153835A3 (fr) * 1984-03-01 1986-05-14 Stc Plc Récepteur radio
EP0394064A2 (fr) * 1989-04-20 1990-10-24 Nec Corporation Récepteur à conversion directe avec une fréquence porteuse locale présentant une gigue pour la détection d'une fréquence porteuse transmise
EP0394064A3 (fr) * 1989-04-20 1992-11-04 Nec Corporation Récepteur à conversion directe avec une fréquence porteuse locale présentant une gigue pour la détection d'une fréquence porteuse transmise

Also Published As

Publication number Publication date
AU3619878A (en) 1979-11-22
DE2821082C3 (de) 1980-10-30
GB1563187A (en) 1980-03-19
AU513425B2 (en) 1980-11-27
DE2821082B2 (de) 1980-03-20
NL7705552A (nl) 1978-11-22
JPS53144652A (en) 1978-12-16
CA1135801A (fr) 1982-11-16
FR2391593B1 (fr) 1983-04-29
JPS6056006B2 (ja) 1985-12-07
US4193033A (en) 1980-03-11
DE2821082A1 (de) 1978-11-23
SE7805612L (sv) 1978-11-21

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Legal Events

Date Code Title Description
ST Notification of lapse