Journal
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Volume 65, Issue 1, Pages 92-102Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2016.2631140
Keywords
5G wireless networks; dual-beam radiation; epsilon-near-zero (ENZ) medium; link quality; millimeter-wave antennas; MIMO antenna; ridge gap waveguide (RGW); slot antenna
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A unique antenna design is presented to implement the dual-beam radiation simultaneously in both H-and E-planes for operation over 57-64 GHz. The slot antenna is excited through a ridge gap waveguide. The dual beam is realized by employing arrays of anisotropic epsilon-near-zero (ENZ) structures that are located vertically over the slot antenna. The proposed ENZ medium behaves analogously to a meta-lens, and consists of meander-line H-shaped unit cells printed on the host substrate with a permittivity of 2.2. Measured results confirm that the dual-beam radiation from the antenna has maxima at +/- 30 degrees with respect to the broadside direction with a maximum gain of 10 dBi at 60 GHz.
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