Line-fed phase controlled antenna

Details Line-fed phase controlled antenna Line-fed phase controlled antenna

1985-10-07

1988-06-28

Sikes, William L.

Communications: radio wave antennas

Antennas

Slot type

343770, H01Q 1310

Patent

active

047542861

ABSTRACT:
In order to achieve an improved monopulse difference pattern, a transition zone is created between the antiphase-excited halves of a phase-controlled antenna composed of a plurality of individual radiators, being created therein along a line of symmetry which separates the halves of the antenna and which comprises individual radiator strips, for example vertical columns or horizontal rows, extending next to one another and parallel to the line of symmetry, in which transition zone, extending from each edge up to the line of symmetry and the center of the transition zone, the number of individual radiators respectively excited antiphase increases in the same manner in comparison to the number of all individual radiators lying in a strip from 0% at each edge up to 50% at the line of symmetry. This principle also particularly applies to a monopulse antenna which is to generate a differential path both for the azimuth and for the elevation and which is composed of four quadrants which are respectively excited antiphase in pairs.

REFERENCES:
patent: 3701158 (1972-10-01), Johnson
patent: 3711858 (1973-01-01), Reeder
Ottl et al., "Monopuls Antenne der Boden-Station Fur Satellitenfunk der Deutschen Versuchsanstalt", ntz, vol. 10, 1968, pp. 631-634.

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