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An aperture-coupled reflectarray is proposed as central station antenna for Local Multipoint Distribution System (LMDS), a wireless access technology that provides broadband microwave connections in the band 10.10-10.70 GHz. The antenna must cover an azimuth 60deg sector and an elevation pattern with squared cosecant shape. The design process consists of two steps. First, a phase-only pattern synthesis...
Reflectarray antennas show a narrow bandwidth as a result of two factors: the narrow bandwidth of the radiating elements and the differential spatial phase delay. The last factor is specially important in large aperture reflect arrays. In this contribution, the bandwidth of reflect arrays is increased significantly by the inclusion of radiating elements with very linear response which allows true-time...
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