Electronically scanned microstrip antenna array

Details Electronically scanned microstrip antenna array Electronically scanned microstrip antenna array

1976-11-24

1977-10-11

Smith, Alfred E.

Communications: radio wave antennas

Antennas

Microstrip

343854, H01Q 326

Patent

active

040538958

ABSTRACT:
A microstrip electronically scannable antenna is realized by means of an array of disc elements that are separated from a common ground plane by a dielectric medium. The center of each disc element is electronically short circuited to the ground plane. At least two pairs of diametrically opposed short circuitry switches (diodes) are connected between certain locations on the peripheral edge of each disc element and the ground plane. The polarization and phase of the reflected energy of each disc element is controlled by certain combinations of open circuited and short circuited pairs of short circuiting switches. Electronic scanning is achieved by control of the short circuitry switches, specifically by digitally controlling the forward and reverse bias of the diodes.

REFERENCES:
patent: 3665480 (1972-05-01), Fassett
patent: 3921177 (1975-11-01), Munson

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