Electronically steered antenna system using a reflective surface

Details Electronically steered antenna system using a reflective surface Electronically steered antenna system using a reflective surface

1976-09-01

1978-05-16

Lieberman, Eli

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343915, 350358, H01Q 1910, H01Q 320

Patent

active

040902048

ABSTRACT:
Electronically steered antenna system is provided by placing a panel of dielectric material with specific thickness and dielectric constant spaced forward of an array of piezoelectric transducers. These piezoelectric transducers present a refelective surface. High frequency wavefronts are transmitted toward the dielectric panel and pass on to the reflective surface. The phase of the reflected waves depends upon the spacing of the reflective surfaces from the panel. A change in this spacing is provided by electrical control signals being applied to the piezoelectric transducers.

REFERENCES:
patent: 3376092 (1968-04-01), Kushner et al.
patent: 3904274 (1975-09-01), Fenleib et al.
patent: 3923400 (1975-12-01), Hardy
patent: 3978484 (1976-08-01), Collier

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