Patent ID: 8976072
Filing Date: 2015-03-10
Classification: H01Q

Abstract:
1. A flat scanning antenna comprising at least one slotted waveguide array, wherein: the slotted waveguide array comprises two dielectric substrates, namely lower substrate and upper substrate, one superposed above the other; the lower and upper substrates comprise the same number of waveguides corresponding thereto; each waveguide of the upper substrate communicates with a corresponding single waveguide of the lower substrate via a coupling slot; each waveguide of the upper substrate further includes a plurality of radiating slots, all the radiating slots being mutually parallel and oriented in the same direction parallel to a longitudinal axis (X) of the waveguides; each waveguide of the lower substrate includes an individual internal supply circuit comprising an individual internal phase-shift/amplification electronic circuit; and in each dielectric substrate, the waveguides are placed so as to be mutually parallel, one beside another, and comprise upper and lower metal walls inclined to a plane of the antenna.