Magnetostatic wave device

Details Magnetostatic wave device Magnetostatic wave device

1989-06-12

1991-01-15

Hille, Rolf

Communications: radio wave antennas

Antennas

Including magnetic material

333161, H01Q 100

Patent

active

049857096

ABSTRACT:
A magnetostatic wave device comprises a ferrimagnetic base material such as a thin film of YIG (yttrium iron garnet). The ferrimagnetic base material is formed on a supporting plate, for example, a GGG (gadolinium gallium garnet) substrate. On one principal surface of the thin ferrimagnetic base material, a first coupling antenna is formed. Furthermore, on one principal surface of the ferrimagnetic base material, second coupling antennas are formed on both sides of the first coupling antenna. In this magnetostatic wave device, the magnetostatic wave propagated from the first coupling antenna toward both sides of the first coupling antenna is received by the second coupling antennas on both sides of the first coupling antenna.

REFERENCES:
patent: 3016535 (1962-01-01), Hewitt, Jr.
patent: 3283330 (1966-11-01), Chatelain
patent: 4403221 (1983-09-01), Lamberg et al.
patent: 4507664 (1985-03-01), James et al.
patent: 4554519 (1985-11-01), Adam
patent: 4675682 (1987-06-01), Adam et al.
patent: 4679012 (1987-07-01), Buck

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