Directional antenna for microwave transmissions

Details Directional antenna for microwave transmissions Directional antenna for microwave transmissions

1980-06-17

1982-08-03

Lieberman, Eli

Communications: radio wave antennas

Antennas

Wave guide type

343840, H01Q 1919

Patent

active

043430031

ABSTRACT:
An improved directional antenna for microwave transmissions is disclosed comprising a paraboloidal main reflector, a waveguide feed having a first open end thereof positioned on the axis of the main reflector, and a second waveguide of the same size serially connected between the second open end of the waveguide feed and a transmission device such as a microwave transceiver. The waveguide feed has an elliptical cross-section throughout its axial length, thus providing an elliptically shaped first open end that in of itself and without separate horn attachment, functions as a feed energizer; while the second waveguide also has an elliptical cross-section of the same size, which in combination with such waveguide feed provides a microwave coupling to the transmission device that minimizes reflections, respectively matching problems, especially in the case of overmoded waveguide applications.

REFERENCES:
patent: 2531454 (1950-11-01), Marshall
patent: 2597391 (1952-05-01), Sichak
patent: 2679003 (1954-05-01), Dyke et al.
patent: 3445852 (1969-05-01), Karlson
patent: 3553707 (1971-01-01), Yang et al.
patent: 3623115 (1971-11-01), Schuttloffel et al.

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