Wave transmission lines and networks – Coupling networks – Delay lines including elastic surface wave propagation means
Patent
1981-10-30
1983-12-20
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Delay lines including elastic surface wave propagation means
333194, H03H 910, H03H 964, H03H 942
Patent
active
044220553
ABSTRACT:
A strain isolation technique for a surface acoustic wave (SAW) device having a piezoelectric SAW substrate is disclosed. A cut in the surface of the piezoelectric SAW substrate forms an isolated surface region where active SAW signal propagation occurs. The cut prevents undesirable surface strains from affecting SAW signal propagation in the isolated region.
REFERENCES:
patent: 3523200 (1970-08-01), Newell
patent: 3810257 (1974-05-01), Jones et al.
patent: 4004254 (1977-01-01), De Vries
patent: 4085620 (1978-04-01), Tanaka
patent: 4100811 (1978-07-01), Cullen et al.
patent: 4213104 (1980-07-01), Cullen et al.
Cullen Donald E.
Gilden Meyer
Montress Gary K.
Wagner Robert A.
Adour David L.
Nussbaum Marvin L.
United Technologies Corporation
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