A bent probe excited circular ring antenna above cylindrical reflector radiating circular polarization

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dc.contributor.authorVongsack, Souphanna
dc.contributor.authorPhongcharoenpanich, Chuwong
dc.contributor.authorKosulvit, Sompol
dc.contributor.authorWakabayashi, Toshio
dc.date.accessioned2026-08-06T09:55:44Z
dc.date.available2026-08-06T09:55:44Z
dc.date.issued2007-12-01
dc.description.abstractThis paper presents the characteristics of a bent probe excited circular ring antenna above cylindrical reflector radiating circular polarization for the point to point wireless Local Area Network communication system. The proposed antenna is operated at the center frequency of 2.45 GHz. The CST software based on FIT (Finite Integral Techniques) is used as the simulation tool for investigating the antenna characteristics. The probe was shielded by dielectric rod and it is bent to obtain good impedance matching and circular polarization. The simulated results of the return loss, radiation pattern, and axial ratio are presented. The antenna has an impedance bandwidth (2:1 VSWR) of 24.93% that cover the frequency range of 2.089 - 2.684 GHz. The antenna has a unidirectional pattern with maximum gain of 8.88 dBi. The average gain level is 8.18 dBi from simulation. The front-to-back ratio in both E-plane and H-plane is better than 20 dB.
dc.identifier.citationAsia Pacific Microwave Conference Proceedings APMC, 2007
dc.identifier.doi10.1109/APMC.2007.4555058
dc.identifier.other2-s2.0-51849116359
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/1757
dc.sourceAsia Pacific Microwave Conference Proceedings APMC
dc.subjectCircular polarization
dc.subjectCircular ring
dc.subjectUnidirectional antenna
dc.titleA bent probe excited circular ring antenna above cylindrical reflector radiating circular polarization
dc.typeConference Paper

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