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

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dc.contributor.authorLuadang, Bancha
dc.contributor.authorJanpangngern, Pisit
dc.contributor.authorPhongcharoenpanich, Chuwong
dc.date.accessioned2026-08-06T10:48:36Z
dc.date.available2026-08-06T10:48:36Z
dc.date.issued2025-01-01
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.citation2025 International Symposium on Antennas and Propagation Isap 2025, 2025
dc.identifier.doi10.23919/ISAP63122.2025.11361993
dc.identifier.other2-s2.0-105033589114
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/16286
dc.source2025 International Symposium on Antennas and Propagation Isap 2025
dc.subjectArchimedean spiral antenna
dc.subjectcavity-backed antenna
dc.subjectcircular polarization
dc.subjectelectromagnetic band gap (EBG)
dc.subjectultrawideband (UWB)
dc.titleUltrawideband Circularly Polarized Cavity-Integrated EBG-Backed Archimedean Spiral Antenna for IoT Applications
dc.typeConference Paper

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