Wave transmission lines and networks – Coupling networks – Delay lines including elastic bulk wave propagation means
Patent
1979-07-26
1981-03-31
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Delay lines including elastic bulk wave propagation means
333147, 333149, 333188, H03H 940, H03H 938, H03H 913
Patent
active
042596491
ABSTRACT:
An electroacoustic apparatus is disclosed for providing beam steered and focused compressional or shear waves, using an interdigital generating grid operative with one surface of a piezoelectric delay line member. The generating transducer is provided with electrode elements having a variable spacing determined by the location of a receiving transducer on another surface of the delay line. The electrode elements are energized in a predetermined phase relationship by an input signal. The apparatus is suitable for use to process signals as a pulse compression or pulse expansion dispersive delay line.
REFERENCES:
patent: 3300739 (1967-01-01), Mortley
patent: 3343105 (1967-09-01), Van Der Pauw
patent: 3387233 (1968-06-01), Parker, Jr.
patent: 3401360 (1968-09-01), Schulz-du Bois
patent: 3573669 (1971-04-01), Papadakis
patent: 3611203 (1971-10-01), Cooper
patent: 3621309 (1971-11-01), Yokoyama et al.
patent: 3675052 (1972-07-01), Lindsay et al.
patent: 3689784 (1972-09-01), de Klerk
patent: 3769615 (1973-10-01), de Klerk
patent: 3825779 (1974-07-01), de Klerk
patent: 3836876 (1974-09-01), Marshall et al.
patent: 3846722 (1974-11-01), de Klerk
patent: 4055820 (1977-10-01), Solie
patent: 4117424 (1978-09-01), Coldren et al.
Coquin et al.-"Theory and Performance of Perpendicular Diffraction Delay Lines", Proceedings of the IEEE, Jun. 1965, pp. 581-591.
Yen et al.-Efficient Bulk Wave Excitation of Quarts, Electronics Letters Jan. 20, 1977, vol. 13, No. 2, pp. 37-38.
Brodahl R. G.
Nussbaum Marvin L.
Westinghouse Electric Corp.
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