EP 0813266 A3 19981007 - 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)
[origin: EP0813266A2] 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).
IPC 1-7
IPC 8 full level
H01P 1/205 (2006.01)
CPC (source: EP)
H01P 1/2053 (2013.01)
Citation (search report)
- [XY] US 4890079 A 19891226 - SASAKI KANEMI [JP]
- [Y] DE 2653856 B1 19780216 - SIEMENS AG
- [X] US 5202653 A 19930413 - YAMADA YASUO [US], et al
- [A] EP 0525416 A1 19930203 - ANT NACHRICHTENTECH [DE]
- [A] CH 532864 A 19730115 - HIRSCHMANN ELECTRIC [AT]
- [Y] G PFITZENMAIER: "LINEAR PHASE MICROWAVE BANDPASS FILTERS", PROCEEDINGS OF THE 1973 EUROPEAN MICROWAVE CONFERENCE, 4 September 1973 (1973-09-04) - 7 September 1973 (1973-09-07), Gent (BE), pages B.2.1., XP002073863
- [A] PATENT ABSTRACTS OF JAPAN vol. 3, no. 125 (E - 145) 19 October 1979 (1979-10-19)
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