Beam forming network

Details Beam forming network Beam forming network

1977-05-05

1978-05-23

Borchelt, Archie R.

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343854, 343786, H01Q 1906, H01Q 326

Patent

active

040913872

ABSTRACT:
A radar antenna includes a plurality of radiators disposed near the focal point of a parabolic reflecting surface. The radiators are coupled to a sector horn waveguide via a plurality of phase shifters and a Butler matrix. The sector horn is concurrently excited in H.sub.10 and H.sub.12 modes of propagation to provide excitation to the radiators. Radiated energy from a radiator propagates to the reflecting surface and is reflected therefrom.

REFERENCES:
patent: 3100894 (1963-08-01), Giller et al.
patent: 3245081 (1966-04-01), McFarland
patent: 3631503 (1971-12-01), Tang et al.

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