EP 0813266 A2 19971217 - Microwave filter comprising several coaxial resonators
Title (en)
Microwave filter comprising several coaxial resonators
Title (de)
Mikrowellenfilter, bestehend aus mehreren Koaxial-Resonatoren
Title (fr)
Filtre hyperfréquence comprenant plusieurs résonateurs coaxiaux
Publication
Application
Priority
DE 19623144 A 19960610
Abstract (en)
The microwave filter is formed with four resonance circuits and are co-axial types that have waveguide spaces (1-4) with internal conductors (5-8). The stages are separated by partition walls (9-11) to form a folded filter structure. Coupling between two of the resonators (5,6) is inductive through a hole in the wall. A similar coupling is made between others (7,8 and 5,8). Another coupling is capacitive and is provided between two stages (6,7) and uses a probe (14) which is set into a dielectric opening (15).
Abstract (de)
Bei einem aus mehreren Koaxial-Resonatoren (1, 5; 2, 6; 3, 7; 4, 8) bestehenden Mikrowellenfilter sollen parasitäre Kopplungen möglichst weitgehend reduziert werden, um eine breitbandige symmetrische Filtercharakteristik realisieren zu können. Dazu ist mindestens eine induktive Überkopplung (16) zwischen zwei elektrisch nicht benachbarten Koaxial-Resonatoren (1, 5; 4, 8) vorgesehen, und mindestens eine Hauptkopplung (14, 15) zwischen elektrisch benachbarten Koaxial-Resonatoren (2, 6; 3, 7) in der Umgebung der Überkopplung (16) ist kapazitiv. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/205 (2006.01)
CPC (source: EP)
H01P 1/2053 (2013.01)
Designated contracting state (EPC)
CH DE FR IT LI SE
DOCDB simple family (publication)
DE 19623144 A1 19971211; EP 0813266 A2 19971217; EP 0813266 A3 19981007
DOCDB simple family (application)
DE 19623144 A 19960610; EP 96121008 A 19961231