Antenna pointing device capable of scanning in two orthogonal di

Details Antenna pointing device capable of scanning in two orthogonal di Antenna pointing device capable of scanning in two orthogonal di

1988-06-07

1989-04-11

Sikes, William L.

Communications: radio wave antennas

Antennas

Wave guide type

343781P, 343761, H01Q 1918, H01Q 312

Patent

active

048210455

ABSTRACT:
An antenna pointing device capable of scanning in two orthogonal directions comprises a fixed source (20) emitting a radio beam (21) and associated with a main offset reflector (10) and a secondary offset reflector (11), together with a set of at least three mirrors (14, 15, and 17) including a first mirror (14) aligned with the secondary reflector (11), and in which the second and third mirrors (15 and 17) are fixed to respective rotary drive mechanisms (16 and 18) for rotating them about two axes (.DELTA., .DELTA.') extending in orthogonal directions. The main and the secondary reflectors (10, 11) and the first and the second mirrors (14, 15) are mechanically fixed to one another in order to constitute a moving assembly. The second mechanism (18) drives both the third mirror (17) and said moving assembly (10, 11, 14, and 15).

REFERENCES:
patent: 4516128 (1985-05-01), Watanabe et al.
patent: 4525719 (1985-06-01), Sato et al.

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