Broadband Two-Array Metasurface-Gridded MIMO Antenna with Dual-CP Bi-Directional Capabilities

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dc.contributor.authorSupreeyatitikul, Nathapat
dc.contributor.authorKakhong, Khwanlada
dc.contributor.authorPrasong, Pusit
dc.contributor.authorPhongcharoenpanich, Chuwong
dc.contributor.authorKonpang, Jessada
dc.date.accessioned2026-08-06T10:48:46Z
dc.date.available2026-08-06T10:48:46Z
dc.date.issued2025-01-01
dc.description.abstractThis study presents a novel two-array MTS-gridded MIMO antenna with dual circular polarization (CP) bidirectional capabilities for full-duplex communications. The proposed antenna consists of two mirrored clusters, each comprising a single-element antenna formed by a 3 × 4 MTS-gridded element array, a circular patch, and a ground plane. The antenna demonstrates a wide measured return loss bandwidth (RLBW) of 56.46% (5 - 8.67 GHz), axial ratio bandwidth (ARBW) of 18.15% (6.26 - 7.44 GHz), and strong isolation below -22 dB. Peak gains of 6.5 dBic and 6.55 dBic were observed at 6.6 GHz and 6.54 GHz for Ports 1 and 2, respectively. Furthermore, the low envelope correlation coefficient (< 0.005) and high diversity gain (> 9.985 dB) validate its effectiveness for multi-port applications. The bidirectional radiation pattern and dual circular polarization support simultaneous transmission and reception, making the design well-suited for full-duplex MIMO operation.
dc.identifier.citation6th Research Invention and Innovation Congress Innovative Electricals and Electronics Ri2c 2025, 7-11, 2025
dc.identifier.doi10.1109/RI2C67120.2025.11282882
dc.identifier.other2-s2.0-105031638878
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/16337
dc.source6th Research Invention and Innovation Congress Innovative Electricals and Electronics Ri2c 2025
dc.subjectAxial ratio bandwidth
dc.subjectcircular polarization
dc.subjectmetasurface
dc.subjectMIMO antenna
dc.subjectreturn loss bandwidth
dc.titleBroadband Two-Array Metasurface-Gridded MIMO Antenna with Dual-CP Bi-Directional Capabilities
dc.typeConference Paper

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