Patent ID: 7900340
Filing Date: 2011-03-08
Classification: G01S,H01Q,Y02A,Y10T

Abstract:
1. A method of fabricating an antenna the method comprising: forming a first part, forming the first part comprising the steps of: forming a plane plate, forming the plane plate further comprising forming a plurality of second slots in the plane plate; forming a second part, forming the second part comprising bending a second channel into a flat zigzag serpentine; attaching the first part to one face of the plane plate; attaching the second part to the other face of the plane plate, wherein the plane plate closes the first channels forming a plurality of straight radiating waveguides disposed so that wave paths of the plurality of radiating waveguides are parallel two by two, the plane plate closes the second channel forming a serpentine feed waveguide, the feed waveguide being disposed flat against the plurality of radiating waveguides so that a longitudinal axis (S coupling elements on a face of the feed waveguide are in contact with the radiating waveguides and straight portions of the zigzag wave path in the feed waveguide form a non-zero angle (ψ) with the wave paths of the radiating waveguides, so that the coupling elements feed the radiating waveguides, and the plurality of second slots in the plane plate adapted to couple electromagnetic radiation between the feed waveguide and the plurality of radiating waveguides.