Patent ID: 7688268

Claim:
An antenna system, comprising: a plate; a plurality of rectangular waveguides formed within said plate, each of said plurality of rectangular waveguides including a plurality of ridges coupled to an interior portion of said each of said plurality of rectangular waveguides, wherein said plurality of waveguides reflect received signals to produce a collimated signal, a length of said each of said plurality of rectangular waveguides does not exceed a height of said plate, a length of said plurality of ridges does not exceed the length of said each of said plurality of rectangular waveguides, an axis of the length of said each of said plurality of rectangular waveguides is parallel to an axis of the height of said plate, the axis of the length of said each of said plurality of rectangular waveguides is parallel to an axis of the length of said plurality of ridges, the axis of the length of said each of said plurality of rectangular waveguides is approximately parallel to said collimated signal, the axis of the height of said plate is parallel to the axis of the length of said plurality of ridges, the axis of the height of said plate is approximately parallel to said collimated signal, and the axis of the length of said plurality of ridges is approximately parallel to said collimated signal.