EP 0797267 A2 19970924 - Radio frequency filter and a method for adjusting the frequency response thereof
Title (en)
Radio frequency filter and a method for adjusting the frequency response thereof
Title (de)
Funkfrequenzfilter und Verfahren zur Abstimmung des Frequenzganges
Title (fr)
Filtre à fréquence radio et méthode d'ajustement de la réponse en fréquence
Publication
Application
Priority
FI 961329 A 19960322
Abstract (en)
The present invention relates to radio frequency filters and a method for adjusting the frequency response of the filter, more particularly to filters having a resonator construction. In the construction in accordance with the invention, the surface currents appearing in the conducting material short circuiting the ends of the resonators, are influenced e.g. by forming patterns to said conducting material, and through that the high frequency characteristics of the short-circuiting connection are influenced, still maintaining a galvanic short circuit between the inner conductors of the resonator. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/205 (2006.01)
CPC (source: EP)
H01P 1/2056 (2013.01)
Designated contracting state (EPC)
CH DE DK FR GB IT LI SE
DOCDB simple family (publication)
EP 0797267 A2 19970924; EP 0797267 A3 19980715; EP 0797267 B1 20030924; AU 1640697 A 19970925; CA 2200636 A1 19970922; DE 69725038 D1 20031030; DE 69725038 T2 20040609; FI 102433 B1 19981130; FI 102433 B 19981130; FI 961329 A0 19960322; FI 961329 A 19970923; JP H1013107 A 19980116
DOCDB simple family (application)
EP 97301913 A 19970321; AU 1640697 A 19970321; CA 2200636 A 19970321; DE 69725038 T 19970321; FI 961329 A 19960322; JP 6987297 A 19970324