EP 2184803 B1 20160106 - Coplanar differential bi-strip delay line, higher-order differential filter and filtering antenna furnished with such a line
Title (en)
Coplanar differential bi-strip delay line, higher-order differential filter and filtering antenna furnished with such a line
Title (de)
Coplanare Differenzial-Zweiband-Verzögerunsleitung, Differenzialfilter höherer Ordnung und Filterantenne mit einer solchen Leitung
Title (fr)
Ligne à retard bi-ruban différentielle coplanaire, filtre différentiel d'ordre supérieur et antenne filtrante munis d'une telle ligne
Publication
Application
Priority
FR 0806220 A 20081107
Abstract (en)
[origin: EP2184803A1] The line (30) has conducting strips (32, 34) arranged on same surface (36) of a dielectric substrate, where the line is configured in the form of printed circuit board. The board presents structural discontinuities formed by portions (32B, 32C, 34B, 34C) of the strips. The discontinuities generate impedance jump and capacitive coupling between the strips for reproducing predetermined quarter-wave phase difference. An interdigitated capacitor for capacitive coupling is formed by conductive fingers (32D, 34D). The fingers are respectively connected to the strip through their ends. An independent claim is also included for a differential dipole filtering antenna comprising a higher-order differential filter.
IPC 8 full level
H01P 9/04 (2006.01); H01P 1/203 (2006.01); H01P 3/02 (2006.01); H01P 9/00 (2006.01)
CPC (source: EP US)
H01P 1/20336 (2013.01 - EP US); H01P 1/20381 (2013.01 - EP US); H01P 3/026 (2013.01 - EP US); H01P 9/006 (2013.01 - EP US); H01P 9/04 (2013.01 - EP US); H01Q 5/335 (2015.01 - EP US); H01Q 9/285 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2184803 A1 20100512; EP 2184803 B1 20160106; FR 2938378 A1 20100514; FR 2938378 B1 20150904; US 2010117759 A1 20100513; US 8305283 B2 20121106
DOCDB simple family (application)
EP 09175194 A 20091106; FR 0806220 A 20081107; US 61069209 A 20091102