Non-dispersive acoustic transport time delay beam steering anten

Details Non-dispersive acoustic transport time delay beam steering anten Non-dispersive acoustic transport time delay beam steering anten

1991-02-19

1991-11-05

Hellner, Mark

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

H01Q 322

Patent

active

050633902

ABSTRACT:
A plurality of acoustic charge transport (ACT) tapped delay lines are coupled to respective antenna elements of a phased array antenna assembly to control the beam steering of either a transmitted or received electromagnetic wave in the megahertz (MHz) range. Each delay line, moreover, is comprised of an ACT channel region which operates as a delay line and further includes multiple signal output taps which can be selectively addressed from an address bus coupled to a digital controller for providing a predetermined delay. With each delay line being individually controlled, an improved technique for beam steering is provided.

REFERENCES:
patent: 4245333 (1981-01-01), Jelks
patent: 4604591 (1986-08-01), Vasile
patent: 4675682 (1987-06-01), Adam et al.
patent: 4912478 (1990-03-01), Daniel
"Phased Array Antennas--An Overview/Knittel", Eli Brookner, Radar Technol, Oct. 1986, pp. 289-301.

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