Accession Number : ADD013230

Title :   Multibeam Lens/Filter Combination for Sonar Sensor.

Descriptive Note : Patent, Filed 7 Apr 80, patented 20 Nov 84,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Anderson, Warren A

Report Date : 20 Nov 1984

Pagination or Media Count : 4

Abstract : A frequency independent acoustic antenna has an acoustic filter plate located between a lens and sensor/-transmitter. When used as a receiver this arrangement of components enables the lens to receive plane waves emanating from a source. This results in materially enhanced beam forming characteristics and performance. The arrangement is also suitable for use in the transmitting mode. (Patents)

Descriptors :   *PATENTS, *SONAR EQUIPMENT, *ACOUSTIC LENSES, *ACOUSTIC FILTERS, PLANE WAVES, SONAR RECEIVERS, SONAR PROJECTORS, BEAM FORMING

Subject Categories : Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE