Magnetostatic-wave chip and device comprising a rare earth iron-

Details Magnetostatic-wave chip and device comprising a rare earth iron- Magnetostatic-wave chip and device comprising a rare earth iron-

1991-10-22

1993-03-30

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428693, 3332192, 333202, 333156, 333148, B32B 900, H01P 700, H01P 118, H01P 120

Patent

active

051982978

ABSTRACT:
A proposal is made for a magnetostatic-wave chip capable of treating a relatively large electric power even when the size of the magnetostatic-wave device, such as filters, delay lines, resonators and oscillators, constructed therewith is very small. The chip is prepared by the epitaxial growth of a rare earth-iron garnet film on the substrate surface and the desired performance of the device can be achieved when the parameters of .DELTA.H/4.pi.Ms,.DELTA.H being the half-value width of the magnetic rosonance peak at 9.2 GHz and 4.pi.Ms being the saturation magnetization, and the volume of the magnetostatic-wave film of the chip fall within the area defined by the five points P1 to P5 shown in FIG. 1.

REFERENCES:
patent: 4547754 (1985-10-01), Murakami et al.
patent: 4614923 (1986-09-01), Roveda et al.
patent: 4745380 (1988-05-01), Murakami et al.
patent: 4968954 (1990-11-01), Ryuo et al.
patent: 4992760 (1991-02-01), Takeda et al.
Daniel, M. R. et al. "A Linearly Dispersive Magnetostatic Delay Line at K-Band" IEEE Trans. on Magnetics, vol. MAG-15, No. 6, Nov. 1979.

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