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High gain, low-profile, wideband archimedean spiral antenna with hexagonal fractal reflector surface

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dc.contributor.authorSag, Rabia Nur
dc.contributor.authorTuylu, Tolgahan
dc.contributor.authorCaliskan, Alper
dc.contributor.authorTurker Tokan, Nurhan
dc.date.accessioned2026-06-27T15:20:21Z
dc.date.issued2025
dc.description.abstractA tapered two-arm Archimedean spiral antenna with microstrip balun and fractal-based reflector surface is designed and manufactured. The operating impedance bandwidth of 1:13.3, and 3-dB AR bandwidth of 1:7 fulfills the requirement of high data rate, wideband and wide coverage zone. The antenna and balun are designed on FR-4 dielectric material with 1.6 mm thickness. The termination of the spiral arm is tapered to reduce the antenna size. To achieve a unidirectional radiation pattern, a reflector surface is used. The reflector surface is designed in a hexagonal fractal form in order to enhance the axial ratio and increase the antenna's gain. The radius and height of the reflector backed spiral antenna is 0.174 and 0.135 wavelengths at 150 MHz, respectively.en
dc.description.sponsorshipScientific and Technological Research Council of Turkey [121E409]
dc.description.sponsorshipTUBITAK
dc.description.urihttps://doi.org/10.14744/sigma.2025.00076
dc.identifier.doi10.14744/sigma.2025.00076
dc.identifier.eissn1304-7191
dc.identifier.endpage886
dc.identifier.issn1304-7205
dc.identifier.issue3
dc.identifier.startpage878
dc.identifier.urihttps://hdl.handle.net/20.500.14981/69906
dc.identifier.volume43
dc.identifier.wos001519032700015
dc.language.isoeng
dc.publisherYILDIZ TECHNICAL UNIV
dc.relation.ispartofSIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES-SIGMA MUHENDISLIK VE FEN BILIMLERI DERGISI
dc.subjectArchimedean Spiral
dc.subjectAxial Ratio
dc.subjectBalun
dc.subjectHexagonal Fractal
dc.subjectWideband
dc.subjectEngineering
dc.titleHigh gain, low-profile, wideband archimedean spiral antenna with hexagonal fractal reflector surface
dc.typeArticle
dspace.entity.typePublication
local.import.sourceWOS

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