EP 1172881 A3 20020807 - Microwave filter
Title (en)
Microwave filter
Title (de)
Mikrowellenfilter
Title (fr)
Filtre à micro-ondes
Publication
Application
Priority
DE 10033683 A 20000711
Abstract (en)
[origin: EP1172881A2] The microwave filter has two resonator spaces [10,50] with a coupling region having two independent quarter wave couplers in between. One of these has apertures [20,40] on either side of a wave guide [30]. A second has a similar arrangement [70,80,90].
IPC 1-7
IPC 8 full level
H01P 1/208 (2006.01)
CPC (source: EP)
H01P 1/208 (2013.01)
Citation (search report)
- [XY] US 2749523 A 19560605 - MILTON DISHAL
- [Y] US 5268659 A 19931207 - ZAKI KAWTHAR A [US], et al
- [Y] FR 2749107 A1 19971128 - EUROP AGENCE SPATIALE [FR]
- [A] HSIN-CHIN CHANG ET AL: "EVANESCENT-MODE COUPLING OF DUAL-MODE RECTANGULAR WAVEGUIDE FILTERS", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE INC. NEW YORK, US, vol. 39, no. 8, 1 August 1991 (1991-08-01), pages 1307 - 1312, XP000209428, ISSN: 0018-9480
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1172881 A2 20020116; EP 1172881 A3 20020807; EP 1172881 B1 20081015; AT E411628 T1 20081015; DE 10033683 A1 20020207; DE 50114413 D1 20081127; NO 20013430 D0 20010710; NO 20013430 L 20020114
DOCDB simple family (application)
EP 01305922 A 20010710; AT 01305922 T 20010710; DE 10033683 A 20000711; DE 50114413 T 20010710; NO 20013430 A 20010710