Magnetostrictive surface acoustic wave device and microelectroni

Details Magnetostrictive surface acoustic wave device and microelectroni Magnetostrictive surface acoustic wave device and microelectroni

1998-08-21

2000-04-04

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Delay lines including elastic surface wave propagation means

333193, 333201, 310311, 310313R, 310 26, H03H 9135, H03H 9145, H03H 942

Patent

active

06046657&

ABSTRACT:
An improved surface acoustic wave device includes a film of a magnetostrictive material disposed on a substrate and spaced apart input and output transducer elements disposed on the film. The input element causes horizontally polarized shear waves to propagate along the film via the magnetostriction of the film. The shear waves propagating along the film are received by the output transducer element. The SAW device can be integrated on a microelectronic circuit useable in single chip radio frequency applications.

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Robbins, W.P. et al.; "A Simple Phenomenological Model of Tunable Saw Devices Using Magnetostrictive Thin Films"; IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 35, No. 6, Nov. 1988, pp. 718-722.
Morgan, David P., Surface-Wave Devices for Signal Processing, Studies in Electrical and Electronic Engineering 19, pp. 4-15, 1985.
R. Bruce Thompson, Generation of Horizontally Polarized Shear Waves in Ferromagnetic Materials Using Magnetostrictively Coupled Meander-Coil Electromagnetic Transducers, Rockwell International Science Center, Nov. 6, 1978, pp. 175-178.
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