Decoupling for Millimeter-Wave Array Antennas Using Near-Field Shrinking Dielectric Superstrate
Shengyuan Luo,
Yiming Zhang,
Peng Mei
et al.
Abstract:A decoupling concept of near-field shrinking dielectric superstrate (NFSDS) is proposed for large-scale, wideband, and dual-polarized mm-wave arrays. An NFSDS with a thickness of 4 mm (0.32 λ0 at 24 GHz) is mounted seamlessly above the array, which shrinks the near field of the array elements to reduce the space wave coupling while slightly increasing the surface wave coupling of the arrays. By loading a superstrate with a certain thickness and low permittivity, the total coupling of the mm-wave arrays is redu… Show more
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