Antenna device for air traffic radar

Details Antenna device for air traffic radar Antenna device for air traffic radar

1982-01-21

1984-08-28

Lieberman, Eli

Communications: radio wave antennas

Antennas

Plural separate diverse type

343779, H01Q 1912, H01Q 2500

Patent

active

044686706

ABSTRACT:
Disclosed is an antenna device, which comprises a reflector and a primary radiator for an ARSR system including a low beam horn antenna disposed at a position substantially at the focal point of the reflector and a high beam horn antenna disposed below the low beam horn antenna. The antenna device further comprises a primary radiator for an SSR system including two modified diagonal horns provided on opposite sides of and having outside perimeters complementary to the arrangement of the low and high beam horn antennas and at positions corresponding to a position midway between the low and high beam horn antennas. A Yagi antenna used as a part of the SSR radiator, is disposed above the low beam horn antenna. Thus, the antenna device can be used commonly for both the ARSR and SSR systems.

REFERENCES:
patent: 3460144 (1969-08-01), Hannan
patent: 3495262 (1970-02-01), Paine
patent: 3683374 (1972-08-01), Honold
patent: 3798646 (1974-03-01), Buehler et al.
patent: 3997897 (1976-12-01), Brunner et al.
patent: 4207573 (1980-06-01), Vignier
patent: 4284991 (1981-08-01), Dupressoir

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