Non-Uniform Metasurface-Based Omnidirectional Patch Antenna Using Characteristic Mode Analysis

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dc.contributor.authorSupreeyatitikul, Nathapat
dc.contributor.authorChudpooti, Nonchanutt
dc.contributor.authorPhongcharoenpanich, Chuwong
dc.date.accessioned2026-08-06T10:38:59Z
dc.date.available2026-08-06T10:38:59Z
dc.date.issued2023-01-01
dc.description.abstractThis paper proposes a non-uniform metasurface (MTS) omnidirectional patch antenna for WLAN applications. The antenna configuration is characterized by using characteristic mode analysis (CMA). The proposed non-uniform MTS-based patch antenna comprised a single-layer FR-4 substrate. Non-uniform square-shaped MTS unit cells were present in the upper-substrate layer. The lower-substrate layer is a circular-shaped ground plane. Besides, the excitation method of the proposed non-uniform MTS-based antenna is a single-probe-fed method. The use of a non-uniform square-shaped MTS structure achieved wide frequency resonance, resulting in wide impedance bandwidth. In addition, the circularly rotated direction of current distributions and magnetic fields on the non-uniform MTS structure can generate omnidirectional radiation by Mode 1 at 2.4 GHz (center frequency). The simulated IBW at 2.4 GHz is 26.67% (2.26 - 2.9 GHz). The optimum gain is 4.13 dBic at 2.8 GHz. The proposed antenna exhibits omni-directional radiation characteristics, making it well-suited for wireless communication applications.
dc.identifier.citation2023 15th International Conference on Information Technology and Electrical Engineering Icitee 2023, 249-253, 2023
dc.identifier.doi10.1109/ICITEE59582.2023.10317713
dc.identifier.other2-s2.0-85179881442
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/13743
dc.source2023 15th International Conference on Information Technology and Electrical Engineering Icitee 2023
dc.subjectcharacteristic mode analysis
dc.subjectground plane
dc.subjectmetasurface
dc.subjectomnidirectional radiation
dc.subjectsurface current distribution
dc.titleNon-Uniform Metasurface-Based Omnidirectional Patch Antenna Using Characteristic Mode Analysis
dc.typeConference Paper

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