Wave transmission lines and networks – Resonators – Magnetic type
Reexamination Certificate
2007-04-17
2007-04-17
Jones, Stephen E. (Department: 2817)
Wave transmission lines and networks
Resonators
Magnetic type
Reexamination Certificate
active
10532898
ABSTRACT:
The integrated magnetostatic wave device comprises a substrate (1), a conductive ferromagnetic thin film (2) of thickness lying in the range about 250 nm to 450 nm and preferably being equal to about 300 nm, said thin film (2) being deposited on said substrate (1), a first transducer antenna (10) for receiving microwave electrical signals disposed parallel to said ferromagnetic thin film (2) in the vicinity thereof in order to create magnetostatic waves or spin waves in said material by inductive coupling, and a second transducer antenna (20) for transmitting microwave electrical signals disposed parallel to said ferromagnetic thin film (2) in the vicinity thereof in order to be inductively coupled thereto and in order to deliver microwave electrical signals on the arrival of a magnetostatic wave in the ferromagnetic thin film (2), said second antenna (20) being situated on the same side of the ferromagnetic thin film (2) as the first antenna (10) so as to be essentially coplanar therewith.
REFERENCES:
patent: 3157865 (1964-11-01), Bradley
patent: 4188594 (1980-02-01), Bongianni
patent: 4283692 (1981-08-01), Adam
patent: 4853660 (1989-08-01), Schloemann
patent: 6120917 (2000-09-01), Eda
patent: 0214901 (1991-09-01), None
Bailleul Mathieu
Fermon Claude
Commissariat a l''Energie Atomique
Jones Stephen E.
Weingarten Schurgin, Gagnebin & Lebovici LLP
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