EP 1472784 A1 20041103 - TRANSMISSION MODE MIXING DEVICE COMPRISING REJECTION OF INTERMEDIATE, LOW LATERAL AND LOCAL OSCILLATOR FREQUENCIES
Title (en)
TRANSMISSION MODE MIXING DEVICE COMPRISING REJECTION OF INTERMEDIATE, LOW LATERAL AND LOCAL OSCILLATOR FREQUENCIES
Title (de)
ÜBERTRAGUNGSMODUS-MISCHEINRICHTUNG MIT ZURÜCKWEISUNG VON ZWISCHENFREQUENZEN, NIEDRIGEN SEITEN- UND EMPFANGSOSZILLATORFREQUENZEN
Title (fr)
DISPOSITIF DE MELANGE EN EMISSION COMPORTANT UNE REJECTION DES FREQUENCES INTERMEDIAIRES, LATERALE BASSE ET D'OSCILLATEUR LOCAL
Publication
Application
Priority
- FR 0204243 W 20021210
- FR 0116978 A 20011228
Abstract (en)
[origin: WO03061112A1] The invention concerns a mixer device mixing an intermediate frequency signal (IF) with a carrier signal from a local oscillator (LO) so as to produce an output signal comprising mainly a radio-frequency high lateral band component (RF), the low lateral band component and the frequency components (IF and OL) being eliminated. Therefor, the inventive device comprises two phase-shifting lines fed by the intermediate frequency signal and the carrier signal. Each phase-shifting line generates four carrier signals or four intermediate frequency signals successively phase-shifted by an angle of -90 DEG . Said phase-shifted signals feed in pairs four mixers. The output signals of the four mixers pass through successive couplers and a 180 DEG phase-shifter so as to eliminate the LO, IF and LB components and only delivers in output a RF frequency component. The 180 DEG phase-shifting may take place in the phase-shifting lines.
IPC 1-7
IPC 8 full level
H03D 7/16 (2006.01)
CPC (source: EP)
H03D 7/165 (2013.01)
Citation (search report)
See references of WO 03061112A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03061112 A1 20030724; AU 2002364823 A1 20030730; EP 1472784 A1 20041103; FR 2834413 A1 20030704; FR 2834413 B1 20040409
DOCDB simple family (application)
FR 0204243 W 20021210; AU 2002364823 A 20021210; EP 02801110 A 20021210; FR 0116978 A 20011228