Surface acoustic wave device

Surface acoustic wave device

A SAW convolver comprises a pair of input transducer means disposed at the left and right end portions on a piezoelectric substrate 1 having a velocity dispersion. The transducer means may consist of a plurality of pairs of input transducers 5a, 5a'; 5b, 5b'; 5c, 5c' and the distance...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: TERUO NIITSUMA
Format: Patent
Sprache:eng
Schlagworte:
ANALOGUE COMPUTERS
BASIC ELECTRONIC CIRCUITRY
CALCULATING
COMPUTING
COUNTING
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
PHYSICS
RESONATORS
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Beschreibung
Zusammenfassung:A SAW convolver comprises a pair of input transducer means disposed at the left and right end portions on a piezoelectric substrate 1 having a velocity dispersion. The transducer means may consist of a plurality of pairs of input transducers 5a, 5a'; 5b, 5b'; 5c, 5c' and the distance I1 I2 I3 between different pairs of input transducers differs from each other so as to compensate the velocity dispersion. Alternatively, the transducer means may consist of inclined electrode fingers (7, 7', Fig 2A).