EP 1004149 A1 20000531 - WAVEGUIDE FILTER
Title (en)
WAVEGUIDE FILTER
Title (de)
HOHLLEITERFILTER
Title (fr)
FILTRE A GUIDES D'ONDES
Publication
Application
Priority
- DE 9802133 W 19980728
- DE 19736367 A 19970821
Abstract (en)
[origin: DE19736367A1] The waveguide filter includes input and output step transformer area (1,3) and an area with waveguide sections which alternate in the height. A band stop filter (4,5) is integrated in the transformer areas in form of at least two consecutive stop members. (41,42,43,51,52,53). An Independent claim is included for application of the waveguide filter as low-pass filter in a transmission branch of a HF power amplifier, especially traveling wave tube amplifier for satellite.
IPC 1-7
IPC 8 full level
H01P 1/211 (2006.01)
CPC (source: EP US)
H01P 1/211 (2013.01 - EP US)
Citation (search report)
See references of WO 9910947A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 19736367 A1 19990225; CA 2300937 A1 19990304; CA 2300937 C 20040511; DE 59802752 D1 20020221; EP 1004149 A1 20000531; EP 1004149 B1 20011121; US 6285267 B1 20010904; WO 9910947 A1 19990304
DOCDB simple family (application)
DE 19736367 A 19970821; CA 2300937 A 19980728; DE 59802752 T 19980728; DE 9802133 W 19980728; EP 98947357 A 19980728; US 48617900 A 20000615