EP 0047203 B1 19851121 - MICROWAVE FILTER WITH A DIELECTRIC RESONATOR TUNABLE OVER A LARGE BANDWIDTH
Title (en)
MICROWAVE FILTER WITH A DIELECTRIC RESONATOR TUNABLE OVER A LARGE BANDWIDTH
Publication
Application
Priority
FR 8018771 A 19800829
Abstract (en)
[origin: US4459570A] A dielectric resonator ultra-high frequency filter tunable in a large band width in which each dielectric resonator is constituted by a dielectric component with a high dielectric constant, which is fixed relative to an enclosure and a component made from the same dielectric material which is movable relative to the first component, in such a way that the distance d between facing surfaces of these two dielectric components varies, leading to a variation in the tuning frequency of the filter by modifying the coupling conditions.
IPC 1-7
IPC 8 full level
H01P 1/20 (2006.01); H01P 1/208 (2006.01); H01P 7/10 (2006.01)
CPC (source: EP US)
H01P 1/2084 (2013.01 - EP US); H01P 7/10 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0047203 A1 19820310; EP 0047203 B1 19851121; AT E16659 T1 19851215; DE 3172989 D1 19860102; FR 2489605 A1 19820305; FR 2489605 B1 19840504; JP S5776901 A 19820514; US 4459570 A 19840710
DOCDB simple family (application)
EP 81401319 A 19810819; AT 81401319 T 19810819; DE 3172989 T 19810819; FR 8018771 A 19800829; JP 13535781 A 19810827; US 29658781 A 19810827