Quadrature modulator with integrated distributed rc filters

Details Quadrature modulator with integrated distributed rc filters Quadrature modulator with integrated distributed rc filters

H - Electricity

03

H

H03H 7/06 (2006.01) H03C 1/54 (2006.01) H03H 1/02 (2006.01) H04L 25/03 (2006.01) H04L 27/20 (2006.01)

Patent

CA 2199935

A quadrature modulator for generation of complex modulated signals includes a unique pair of balanced, low-pass filters which, through a switching arrangement for switching into and out of the circuit distributed RC line sections and corresponding ground resistances are able to redress problems associated with manufacturing tolerances.

L'invention concerne un modulateur en quadrature permettant de générer des signaux modulés complexes. Ce modulateur comprend une seule paire de filtres passe-bas équilibrés. Ces filtres présentent une configuration assurant une commutation pour passer dans les sections de lignes de circuit avec capacité et résistance réparties, ou pour sortir de ces dernières, ce qui permet de remédier aux problèmes liés aux tolérances de fabrication.

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