Ultrawideband Circularly Polarized Cavity-Integrated EBG-Backed Archimedean Spiral Antenna for IoT Applications

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dc.contributor.authorBancha Luadang
dc.contributor.authorPisit Janpangngern
dc.contributor.authorCong Li
dc.date.accessioned2026-05-08T19:26:17Z
dc.date.issued2025-10-27
dc.description.abstractThis paper presents a compact ultrawideband circularly polarized Archimedean spiral antenna integrating a cavity-backed structure with a circular EBG reflector. The hybrid design enhances gain, suppresses backward radiation, and improves directivity, particularly below 3.0 GHz. The antenna covers 1.5–9.0 GHz with |S11| ≤ –10 dB and axial ratio ≤ 3 dB. Simulations show peak gain over 11.96 dBic at 6.5 GHz and a front-to-back ratio improvement due to the cavity. The proposed structure is well-suited for GPS, Wi-Fi, and IoT applications.
dc.identifier.doi10.23919/isap63122.2025.11361993
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/20528
dc.subjectAntenna Design and Analysis
dc.subjectAdvanced Antenna and Metasurface Technologies
dc.subjectMicrowave Engineering and Waveguides
dc.titleUltrawideband Circularly Polarized Cavity-Integrated EBG-Backed Archimedean Spiral Antenna for IoT Applications
dc.typeArticle

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