Tunable microstrip bandpass filter

Details Tunable microstrip bandpass filter Tunable microstrip bandpass filter

H - Electricity

01

P

H01P 1/20 (2006.01) H01P 1/217 (2006.01) H01P 1/218 (2006.01)

Patent

CA 2054365

A tunable bandpass filter comprises a flat ferrite body having first and second spaced, coextensive microstrip conductive lines on its upper surface. A winding encircles the ferrite and conductive lines so that a variable d-c current in the winding varies the magnetic permeability of the ferrite and thus the center frequency of the filter.

Filtre passe-bande accordable comportant un corps plat en ferrite qui a sur sa surface supérieure des première et deuxième lignes conductrices microruban espacées coextensives. Un enroulement entoure le ferrite et les lignes conductrices, de sorte qu'un courant continu variable dans l'enroulement fait varier la perméabilité magnétique du ferrite et conséquemment la fréquence centrale du filtre.

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