Gain and bandwidth enhancement using superstrate loaded 2x2 circular-array antenna for X-Band and RADAR applications

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dc.authoridVarshney, Atul/0000-0003-0440-4937
dc.authoridGENCOGLAN, Duygu Nazan/0000-0001-5014-9514
dc.contributor.authorVarshney, Atul
dc.contributor.authorGencoglan, Duygu Nazan
dc.date.accessioned2025-01-06T17:37:48Z
dc.date.available2025-01-06T17:37:48Z
dc.date.issued2024
dc.description.abstractThis article demonstrates the fabrication, and measurements of a corporate offset-fed 2 x 2 array electromagnetically coupled patch (EMCP) circular-antenna based on the Fabry-Perot cavity principle. Single element antenna has a low gain of 6.28 dBi and is enhanced to 13.45dBi by loading the array with a superstrate. The antenna parameters -10 dB fractional bandwidth (FBW) and gain are improved by an air gap with 4-stacked circular patches and 4 stubs in the proposed design. The peak gain of the 2 x 2 array without superstrate was 8.88 dBi at 8.19 GHz, which is enhanced to 13.82 dBi at 9.55 GHz by parasitic loading and superstrate. The FBW of the proposed array antenna was enhanced by arranging four stubs between the 4-circles in the superstrate structure. The -10 dB FBW without stubs was 24.82% (7.62-9.73 GHz) and with stubs it became 38.47% (7.73-11.0 GHz). Adjustment of the height of the superstrate at 2.0 mm not only enhanced the gain and bandwidth but also advancement in the unidirectional radiation patterns. The array is prototyped is measured to validate the reflection coefficients and radiation characteristics and they found an excellent match with simulated results. The suggested array is most suitable for energy launchers in transitions, RADAR, military, satellite, X-band communications, and microwave laboratory applications.
dc.identifier.doi10.1080/00207217.2024.2431994
dc.identifier.issn0020-7217
dc.identifier.issn1362-3060
dc.identifier.scopus2-s2.0-85210731090
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://doi.org/10.1080/00207217.2024.2431994
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2370
dc.identifier.wosWOS:001367425000001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofInternational Journal of Electronics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectFabry-Perot cavity antenna (FPCA)
dc.subjectgain-bandwidth enhancement
dc.subjectoffset-feed
dc.subjectstacked-patch
dc.subjectsuperstrate
dc.titleGain and bandwidth enhancement using superstrate loaded 2x2 circular-array antenna for X-Band and RADAR applications
dc.typeArticle

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