Title :
Magnetically tuned surface-acoustic-wave phase shifter
Author :
Ganguly, Amar K. ; Davis, K.L. ; Webb, David C. ; Vittoria, Claude ; Forester, D.W.
Author_Institution :
Naval Research Laboratory, Washington, USA
Abstract :
A novel technique for achieving variable phase shift in surface-acoustic-wave devices is demonstrated. By depositing a thin film of magnetostrictive material onto the surface of a conventional surface-acoustic-wave delay line, the wave velocity can be varied by adjusting an externally applied magnetic field. Experimental results are presented for a nickel film on a lithium-niobate substrate, and several possible applications are mentioned.
Keywords :
acoustic surface wave devices; magnetostrictive devices; phase shifters; tuning; acoustic surface wave device; magnetic tuning; magnetostrictive devices; phase shifter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750465
