Dipole transducer array for bulk acoustic wave delay device

Details Dipole transducer array for bulk acoustic wave delay device Dipole transducer array for bulk acoustic wave delay device

1989-12-22

1992-02-04

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic bulk wave propagation means

310366, H03H 9125, H03H 930

Patent

active

050862839

ABSTRACT:
An acoustic delay line device for microwave equipment includes a cylindrical acoustic substrate. A transducer array including four transducers located at the corners of a square is formed on each end of the cylinder. The four transducers are electrically connected in series top-to-top and bottom-to-bottom so that adjacent transducers are of opposite polarity and dipoles are formed diagonally. The first and last transducer in the series are connected electrically to the outside source of receiver of RF signals by bonding pads which are offset from the transducers, and by connection wires bonded to the bonding pads. A ground plane area is provided on both ends of the acoustic substrate surrounding each transducer array.

REFERENCES:
patent: 3453711 (1969-07-01), Miller
patent: 3688222 (1972-05-01), Lieberman
patent: 3893048 (1975-07-01), Lieberman
patent: 3946341 (1976-03-01), Chiron et al.
patent: 4016515 (1977-04-01), Wauk, II
patent: 4488128 (1984-12-01), Odozynski
1974 IEEE International Solid State Circuits Conference, Lieberman et al., pp. 100-101, 235.
1979 Ultrasonic Symposium, IEEE, Sundelin et al., pp. 161-164.
1980 Ultrasonic Symposium, Moore et al., pp. 838-841.
IEEE Transactions on Microwave Theory and Techniques, No. 11, Nov. 1969, Reeder et al., pp. 927-941.

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