Magnetic bubble traveling wave amplifier
AssigneeThe United States of America as represented by the Secretary of the Army
InventorLouis J. Jasper, Jr.
Life of this patent
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Abstract
A device is disclosed for amplifying electromagnetic waves propagating al a meander line slow wave structure by means of magnetic cylindrical domains or bubbles which are propagating at substantially the same velocity as the RF wave in an adjacent platelet of orthoferrite having associated with it a propagation arrangement of the conventional type which is adapted to move the domains from one end of the platelet to the other. Since the magnetic bubbles are magnetic dipoles that produce magnetic surface charges, a portion of their energy is transferred to the propagating RF wave, resulting in amplification of the RF wave.
Claims11
A circuit arrangement for amplifying an electromagnetic wave comprising the combination:
- a slow wave structure coupled to an electromagnetic wave source for propagating an electromagnetic wave thereon from one end to the other;
- a medium located adjacent said slow wave structure which is adapted to sustain and translate magnetic domains therein, said domains providing magnetic surface charges on said medium which is adapted to interact with said electromagnetic wave;
- and
- means located adjacent said medium for translating said magnetic domains from input to output positions at substantially the same velocity as said electromagnetic waves propagates from said one end to the other whereby energy is transferred from said magnetic surface charges to said electromagnetic wave providing amplification of said wave.
Dependencies are inferred from the claim text.