Abstract
This letter presents a shape synthesis and an array optimization of the hourglass reflector antenna. A cosecant-squared pattern in the elevation plane, with the reconfigurable beamwidth in the horizontal plane, is achieved by controlling the excitation of the feed array elements and maintaining an invariable reflector surface. Thus, a sectorial pattern configuration of four beams (with 90 beamwidth) or eight beams can be selected in the azimuth plane. Both kinds of patterns (vertical and horizontal) have proven their usefulness and advantages for base stations in wireless communication systems.
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