Wave transmission lines and networks – Resonators – Magnetic type
Patent
1991-09-04
1993-03-09
Dzierzynski, Paul M.
Wave transmission lines and networks
Resonators
Magnetic type
333245, H01P 1215
Patent
active
051929287
ABSTRACT:
A circuit element utilizing a magnetostatic wave is disclosed which uses a magnetostatic-wave resonator having a structure wherein a thin YIG (yttrium iron garnet) film is formed on a non-magnetic substrate such as a GGG (gadolium gallium garnet) substrate and defining a wave propagation plane. In this resonator, at least a part of end faces of the YIG film are inclined at an angle of 2.degree. or more to a plane perpendicular to the wave propagation plane to suppress the generation of unnecessary spurious modes in a wide frequency range.
REFERENCES:
patent: 4251786 (1981-02-01), Goldie et al.
patent: 4565984 (1986-01-01), Castera et al.
patent: 4743874 (1988-05-01), Kinoshita et al.
patent: 5017895 (1991-05-01), Buck et al.
patent: 5017896 (1991-05-01), Adam et al.
IEEE Transactions on Magnetics, vol. MAG-20, No. 5, Sep. 1984, pp. 1232-1234 entitled, "MSSW Resonators with Straight Edge Reflectors".
Journal of Applied Physics vol. 36, No. 11, Nov. 1965, pp. 3453-3459 "Propagation of magnetostatic Spin Wave at Microwave Frequencies in a Normally-Magnetized Disk*" by R. W. Damon and H. Van De Vaart.
Ito Kohei
Murakami Yasuhide
Dzierzynski Paul M.
Ham Seung
Hitachi Metals Ltd.
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