Enhancing Bandwidth of Circularly Polarized DRA Using Embedded Slot-Coupled Patch

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dc.contributor.authorSupreeyatitikul, Nathapat
dc.contributor.authorPhongcharoenpanich, Chuwong
dc.contributor.authorKonpang, Jessada
dc.date.accessioned2026-08-06T10:43:30Z
dc.date.available2026-08-06T10:43:30Z
dc.date.issued2024-01-01
dc.description.abstractThis paper proposes a bandwidth enhancement technique for circularly polarized (CP) dielectric resonator antenna (DRA) using the embedded slot-coupled patch. The proposed CP DRA for mid-band 5G applications consisted of an aperture-coupled feed, a dice-shaped dielectric resonator (DR), and an embedded slot-coupled patch. A slot-coupled feed included cross-aperture ground plane (upper substrate) and microstrip-line feed (lower substrate). The dice-shaped DR sits at the center of the cross-aperture ground plane. The slot-coupled patch was embedded into DR for bandwidth enhancement. The DR usually functioned as a resonance cavity, producing TEll1 mode. The embedded slot-coupled patch can generate the resonance frequency mode (TM01 and TMl0) at a higher frequency, resulting in a wide reflection coefficient bandwidth and ARBW. The results of simulation reflection coefficient bandwidth and ARBW at center frequency (3.5 GHz) achieved 44% (3.12 - 4.66 GHz) and 36.57% (3.23 - 4.51 GHz). The peak RHCP gain was 8.7 dBic at 4.5 GHz with right-hand circular polarization, rendering the proposed CP DRA with embedded slot-coupled patch suitable for mid-band 5G wireless networks.
dc.identifier.citationIcpei 2024 Proceedings of the 6th International Conference on Power Energy and Innovations, 5-8, 2024
dc.identifier.doi10.1109/ICPEI61831.2024.10748627
dc.identifier.other2-s2.0-85211936905
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/14947
dc.sourceIcpei 2024 Proceedings of the 6th International Conference on Power Energy and Innovations
dc.subjectARBW
dc.subjectcircularly polarized antenna
dc.subjectDRA
dc.subjectresonance cavity slot-coupled feed
dc.titleEnhancing Bandwidth of Circularly Polarized DRA Using Embedded Slot-Coupled Patch
dc.typeConference Paper

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