Radio frequency antenna having a reflector with an edge in a pat

Details Radio frequency antenna having a reflector with an edge in a pat Radio frequency antenna having a reflector with an edge in a pat

1983-03-02

1985-01-22

Lieberman, Eli

Communications: radio wave antennas

Antennas

Wave guide type

343781P, 343914, H01Q 1917

Patent

active

044955049

ABSTRACT:
A reflector type radio frequency antenna having: a feed for producing a difference radiation pattern with a cone-shaped null region; and, a reflector having a surface disposed to reflect a portion of the energy in the difference radiation pattern and having the edge disposed in the cone-shaped null region. With such arrangement, since the edge of the reflector is disposed in the null region of the difference radiation pattern such edge is not radiated with energy which could otherwise illuminate such edge, scatter, and thereby generate unwanted side lobes in the free space antenna pattern.

REFERENCES:
patent: 2925595 (1960-02-01), Thourel

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