CPC H01Q 13/0233 (2013.01) [H01Q 1/3233 (2013.01); H01Q 13/18 (2013.01); H01Q 21/0043 (2013.01)] | 20 Claims |
1. An apparatus comprising:
a waveguide configured to guide electromagnetic energy through an opening at a first end of at least one channel filled with a dielectric, the waveguide comprising:
two parallel surfaces of the waveguide that form a ceiling and a floor of the channel filled with the dielectric;
adjoining surfaces orthogonal to the two surfaces that form walls of the channel filled with the dielectric; and
a beam-forming feature comprising two recessed walls separated by a plurality of radiation slots, the two recessed walls configured to provide a recessed surface through which the plurality of radiation slots include openings to the channel filled with the dielectric, a first wall of the two recessed walls running parallel to a longitudinal axis of the waveguide, a second wall of the two recessed walls running parallel to the first wall and having a height that is less than that of the first wall.
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