Four beam printed antenna for Doopler application

Details Four beam printed antenna for Doopler application Four beam printed antenna for Doopler application

1975-03-12

1976-12-14

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343705, 343854, H04B 700

Patent

active

039979008

ABSTRACT:
A novel approach for generating four symmetrically located beams from a printed antenna using a corporate feed system is described. One approach used to generate four low side lobe beams utilizes a planar aperture. The second approach generates four low side lobe beams from a cylindrically shaped aperture. The generation is accomplished without the use of active phase shifting devices. The output phase function of the feed can be reversed which causes the beam to be pointed equally in the opposite direction. The radiating elements are designed to be symmetrical about the center of the aperture in a direction orthogonal to the radiating elements. By placing identical feeds at both ends, four beams can be obtained, each pointed in a direction symmetrically located about the normal to the antenna. Such an approach is applicable to both planar arrays and cylindrically shaped arrays.

REFERENCES:
patent: 3736592 (1973-05-01), Coleman
patent: 3858218 (1974-12-01), Masak et al.
patent: 3864680 (1975-02-01), Hannan
patent: 3911442 (1975-10-01), Hatch

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