FREQUENCY TUNABLE RF PHASE SHIFTER OR CIRCULATOR HAVING A WIDE-BAND SAW-MULTIFERROIC HYBRID DEVICE

FREQUENCY TUNABLE RF PHASE SHIFTER OR CIRCULATOR HAVING A WIDE-BAND SAW-MULTIFERROIC HYBRID DEVICE

A nonreciprocal microwave phase shifter or circulator includes a substrate, a transducer on a surface of the substrate and configured to reciprocally convert between electrical signals to acoustic waves, a first piezoelectric material configured to generate and transport acoustic waves from a signal...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Shah, Piyush J, Bas, Derek A, Newburger, Michael J, Reed, Amber N, Page, Michael R, McConney, Michael E
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Beschreibung
Zusammenfassung:A nonreciprocal microwave phase shifter or circulator includes a substrate, a transducer on a surface of the substrate and configured to reciprocally convert between electrical signals to acoustic waves, a first piezoelectric material configured to generate and transport acoustic waves from a signal applied to the transducer, and a thin film magnetic material configured to couple to acoustic waves through magnetoelastic coupling so as to have nonreciprocal magnetoelastic coupled acoustic wave transport. Phase shifts of acoustic waves through the thin film magnetic material in directions toward and away the transducer have significantly different magnitudes.