Abstract
A dual-polarized transmitarray antenna is proposed to generate a multizone coverage at 28 GHz for fifth-generation (5G) indoor communications. The transmitarray radiates a constant power density within its near-field region over a specific area generating different spots in dual polarization. The different spots are produced by feeding the transmitarray with a cluster of horn antennas, which are spatially distributed to obtain beams in different directions. The performance of the coverage is improved with a phase-only synthesis of the transmission coefficients. The transmitarray is designed with dielectric-only elements, which provides a low-cost solution. The prototype is measured in a planar acquisition range, showing a high agreement with simulations. The proposed transmitarray together with the spatial feed distribution provides a potential alternative to generate multizone coverages in millimeter frequencies.
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