Wide-bandwidth variable attenuator/modulator using giant magneto

Details Wide-bandwidth variable attenuator/modulator using giant magneto Wide-bandwidth variable attenuator/modulator using giant magneto

1995-09-22

1997-04-22

Gensler, Paul

Wave transmission lines and networks

Attenuators

29600, 333 242, H01P 123

Patent

active

056232357

ABSTRACT:
A wide-bandwidth variable attenuator/modulator incorporating a region of material comprising a combination of a ferromagnetic
onmagnetic material which exhibits a Giant Magnetoresistance (GMR) effect.

REFERENCES:
patent: 2798207 (1957-07-01), Reggia
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patent: 4283692 (1981-08-01), Adam
patent: 5447781 (1995-09-01), Kano et al.
"Oscillatory Magnetic Exchange coupling through Thin Copper Layers" Physical Review Letters, vol. 66, No. 16, Apr. 22, 1991, S.S.P. Parkin, R. Bhadra and K.P. Roche, pp. 2152-2155.
"Giant magnetoresistance in antiferromagnetic Co/Cu multilayers" Appl. Phys. Lett., 58 (23), Jun. 10, 1991, S.S.P. Parkin, Z.G. Li and D.J. Smith, pp. 2710-2712.
T. Edwards, "Foundations for Microstrip Circuit Design," 1992 Second Edition, John Wiley & Sons, New York, pp. 19-25.
E.H. Fooks, et al., "Microwave Engineering Using Microstrip Circuits" 190, Prentice Hall, New York, pp. 40-45 and 233-235.

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