Magnetic feedthrough cancelling surface acoustic wave device

Details Magnetic feedthrough cancelling surface acoustic wave device Magnetic feedthrough cancelling surface acoustic wave device

1983-12-30

1985-09-03

Wong, Peter S.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

333151, H03H 925

Patent

active

045395020

ABSTRACT:
A surface acoustic wave (SAW) device has an input interdigitated transducer (IDT) and an output IDT. One of the transducers is formed as two loops which are interconnected so that unwanted magnetic feedthrough voltages induced in or by such current loops cancel, while currents producing or produced by the SAW add.

REFERENCES:
patent: 3551837 (1970-12-01), Speiser et al.

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