Electronically tunable microwave filter

摘要

The present invention relates to an electronically tunable microwave filter comprising at least one resonating element 10 with high quality factor, consisting at least partially of polycrystalline ferrite 11, of a device 15 establishing a magnetic field in this element so as to vary the magnetic permeability mu r of the ferrite 11. Application in particular to the sector of radio links. <IMAGE>