Acoustic antenna

Details Acoustic antenna Acoustic antenna

1977-02-10

1979-07-03

Tudor, Harold J.

Communications: electrical

Selective

Addressing

340 10, H04B 1300

Patent

active

041602307

ABSTRACT:
An acoustic antenna comprises a support, an acoustic reflector supported by the support and a plurality of acoustic/electrical transducers arranged forwardly of said acoustic reflector to cooperate with the reflector. The acoustic/electrical transducers are arranged at different distances from the reflector thus to be operative at different acoustic frequencies. The transducers are provided with sensitivity compensation means for rendering the transducers less sensitive the further the distance of the transducers from the reflector. The signals of the transducers are combined to render the band width of the antenna relatively wide.

REFERENCES:
patent: 2438925 (1948-04-01), Krantz
patent: 2515154 (1950-07-01), Lanphier
patent: 3277428 (1966-10-01), Sampsell
patent: 3393400 (1968-07-01), Trott
patent: 3901352 (1975-08-01), Cluzel

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