EP 0029276 A1 19810527 - Microwave filter.
Title (en)
Microwave filter.
Title (de)
Mikrowellenfilter.
Title (fr)
Filtre à microondes.
Publication
Application
Priority
NL 7908374 A 19791115
Abstract (en)
Microwave filter formed by one or more transverse partitions mounted behind each other in a waveguide (1), and provided with parallel slots (2) of different lengths. The length of the longest slot is equal to about half the wavelength of the centre frequency of the pass band, whereas the lengths of the other slots are determined for each partition by the largest possible attenuation in a stop band.
IPC 1-7
IPC 8 full level
H01P 1/208 (2006.01); H01P 1/209 (2006.01); H01P 1/213 (2006.01)
CPC (source: EP)
H01P 1/208 (2013.01); H01P 1/209 (2013.01); H01P 1/2138 (2013.01)
Citation (search report)
- GB 773527 A 19570424 - BRITISH THOMSON HOUSTON CO LTD
- US 3952270 A 19760420 - LOUVEL GUY
- GB 649301 A 19510124 - MINI OF SUPPLY
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU SE
DOCDB simple family (publication)
EP 0029276 A1 19810527; EP 0029276 B1 19840509; AT E7437 T1 19840515; DE 3067782 D1 19840614; NL 181064 B 19870102; NL 181064 C 19870601; NL 7908374 A 19810616
DOCDB simple family (application)
EP 80201088 A 19801114; AT 80201088 T 19801114; DE 3067782 T 19801114; NL 7908374 A 19791115