EP 0350256 A2 19900110 - Band elimination filter.
Title (en)
Band elimination filter.
Title (de)
Bandsperre.
Title (fr)
Filtre coupe-bande.
Publication
Application
Priority
JP 16658088 A 19880704
Abstract (en)
A band elimination filter includes a filter circuit (10) which is formed by a dielectric resonator (11) exhibiting inductiveness at a frequency f2 and a capacitor (12) connected in series with the dielectric resonator, and an input/output transmission line (13) which has an inductor (14) connected to the capacitor (12) of the filter circuit (10). Only the aforementioned filter circuit (10) is connected between an end portion of the inductor (14) and earthing means (15). In the band elimination filter having such structure, a signal attenuation amount is abruptly changed around the trap frequency f2, to improve the passing characteristic.
IPC 1-7
IPC 8 full level
H01P 1/205 (2006.01)
CPC (source: EP)
H01P 1/2056 (2013.01)
Designated contracting state (EPC)
DE FR SE
DOCDB simple family (publication)
EP 0350256 A2 19900110; EP 0350256 A3 19901128; FI 893231 A0 19890703; FI 893231 A 19900105; JP H0216802 A 19900119; NO 892754 D0 19890703; NO 892754 L 19900105
DOCDB simple family (application)
EP 89306771 A 19890704; FI 893231 A 19890703; JP 16658088 A 19880704; NO 892754 A 19890703