Ferromagnetic resonator

Details Ferromagnetic resonator Ferromagnetic resonator

H - Electricity

01

P

333/89

H01P 7/00 (2006.01) H01P 1/215 (2006.01) H03H 9/24 (2006.01)

Patent

CA 1204181

ABSTRACT OF THE DISCLOSURE A ferromagnetic resonator employing a disk of ferrimagnetic material is disclosed. The ferromagnetic resonator comprises a disk of ferrimagnetic material such as yttrium iron garnet (YIG) and a magnet applying D.C. magnetic field perpendicularly to a surface of the disk, and microstrip line applying RF magnetic field to the disk. The disk of ferrimagnetic material is processed to have a groove at a predetermined position on one surface of the disk, or to have a predetermined area in a central portion of the disk with a thickness smaller than that of peripheral portion of the disk, so that spurious response caused by magnetostatic mode other than the uniform mode is suppressed.

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