Antenna structure with relatively offset reflectors for electrom

Details Antenna structure with relatively offset reflectors for electrom Antenna structure with relatively offset reflectors for electrom

1978-03-23

1980-09-16

Lieberman, Eli

Communications: radio wave antennas

Antennas

Wave guide type

343786, 343837, H01Q 1912

Patent

active

042233160

ABSTRACT:
An antenna structure includes an at least partly parabolic main reflector and an auxiliary reflector of generally similar configuration, the two reflectors having confronting concave surfaces and lying respectively above and below a horizontal plane including a common focus of these surfaces. A corrugated horn illuminating the auxiliary reflector extends at the level of the latter, with a substantially horizontal axis, between vertical planes passing through the vertex of the parabolic main-reflector surface and through the common focus; in one embodiment, the horn forms with the auxiliary reflector a unitary assembly closed on all sides except for an upper aperture facing the main reflector.

REFERENCES:
patent: 2975419 (1961-03-01), Brown
patent: 3029431 (1962-04-01), Miller
patent: 3332083 (1967-07-01), Broussaud
patent: 3562753 (1971-02-01), Tanaka et al.
patent: 3936837 (1976-02-01), Coleman et al.
patent: 4012743 (1977-03-01), Maciejewski
patent: 4062018 (1977-12-01), Yokoi et al.
patent: 4096483 (1978-06-01), Hai et al.

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