Directional antenna for microwave transmissions

Details Directional antenna for microwave transmissions Directional antenna for microwave transmissions

H - Electricity

01

Q

351/54

H01Q 19/19 (2006.01) H01Q 19/13 (2006.01)

Patent

CA 1147455

P/4006. 04 DIRECTIONAL ANTENNA FOR MICROWAVE TRANSMISSIONS Abstract of Disclosure 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.

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