Rotary scan antenna

Details Rotary scan antenna Rotary scan antenna

1983-05-31

1986-03-04

Lieberman, Eli

Communications: radio wave antennas

Antennas

Wave guide type

343425, 333257, H01Q 1302

Patent

active

045742898

ABSTRACT:
An antenna having a rotatable phase center is disclosed. The antenna includes a horn antenna having a phase center and at least one rod-like impedance element located adjacent a wall of the horn antenna near the phase center. The length of the impedance element is selected such that it shifts the phase center from its normal, undisturbed location without substantially affecting the amplitude pattern of the antenna. Means is provided for mechanically rotating the rod-like impedance element around the phase center so as to thereby cause the phase center to also rotate.

REFERENCES:
patent: 2774067 (1956-12-01), Bollinger
patent: 2881432 (1959-04-01), Hatkin
patent: 3010105 (1961-11-01), Jones et al.
patent: 3021524 (1962-02-01), Kompfner
patent: 3141169 (1964-07-01), Bellis et al.
patent: 3274603 (1966-09-01), Kay
patent: 3277490 (1966-10-01), Williams
patent: 3423756 (1969-01-01), Foldes
patent: 3605100 (1971-09-01), Parad
patent: 4387378 (1983-06-01), Henderson

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