Circularly polarized crossed slot waveguide antenna array

Details Circularly polarized crossed slot waveguide antenna array Circularly polarized crossed slot waveguide antenna array

1979-02-12

1981-05-05

Moore, David K.

Communications: radio wave antennas

Antennas

Slot type

343767, H01Q 1310

Patent

active

042662281

ABSTRACT:
The array includes at least a first pair of waveguides disposed side by side and a first plurality of crossed slots disposed in each of the first pair of waveguides with the slots of one of the first pair of waveguides being axially displaced from the slots in the other of the first pair of waveguides one half of the waveguide wavelength. For transmission, both extremities of one of the pair of waveguides are excited out of phase with respect to both extremities of the other of the pair of waveguides to produce in-phase excitation of the slots. To receive, a waveguide is disposed in the central area of each of the first pair of waveguides. The array may be enlarged by placing additional identical pairs of waveguides disposed side by side with respect to each other and the first pair of waveguides. The additional pairs of waveguides contain additional slots identical to the first plurality of slots.

REFERENCES:
patent: 2981948 (1961-04-01), Kurtz
patent: 3281851 (1966-10-01), Goebels, Jr.
patent: 3701162 (1972-10-01), Seaton
patent: 3720953 (1973-03-01), Ajioka

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