1230 KB25 KB198520262025Bashar, Bashar S.Ismail, Marwa M.Misran, HalinaOleiwi, Taha AhmedQas Elias, Bashar BahaaRhazali, Zeti Akmaštevilka:3letnik:55str. 173-181ISSN:0352-9045DOI:10.33180/InfMIDEM2025.304COBISSID_HOST:281501699URN:URN:NBN:SI:doc-QXGB6CU7enStrokovno društvo za mikroelektroniko, elektronske sestavne dele in materialeInformacije MIDEMbeam splittingdelitev žarkagainkrpična antenametamaterialojačenjepatch antennasuperstratsuperstrateA beam-split and gain-enhanced patch antenna using metamaterial superstrate for wireless communications| Krpična antena z razcepljenim snopom in povečanim dobitkom z uporabo metamaterialne podlage za brezžične komunikacije|This paper proposes multiband antenna-based Metamaterial (MTM) for beam splitting and gains improvement. Here, the focus is on developing the smart antenna using a Metamaterial Superstrate technique for modern wireless applications. The proposed antenna consists of two patches, the first one has a square shape placed on a Taconic FR-30 substrate, followed by the second patch constructed as a meander ring with two stubs for increasing the generated frequency bands. At the end of the design process, the proposed patch seems U-shaped to ensure the antenna beam is splitting at the desired frequency bands. In addition, the capacitive coupling is used for exciting the second patch, whereas the first patch is excited by conduction with a 50 ? discrete port. Furthermore, a metasurface layer is designed and mounted on the second patch as a superstrate to increase the antenna gain toward the boresight direction. The results show a maximum gain of 8 dBi at 4.2 GHz with maximum dimensions of 108 × 108 mm2. Moreover, this antenna operates at additional frequency bands (2.6 GHz, 4.2 GHz, and 5.6 GHz), with a minimum reflection coefficient of -16.8 dB, -12.3 dB, and -30.6 dB, respectively. The proposed antenna is designed and analyzed using the CST MWS simulatorČlanek predlaga večpasovno anteno na osnovi metamateriala (MTM) za razdelitev snopa in izboljšanje dobička. Pri tem se osredotočamo na razvoj pametne antene s tehniko metamaterialnega superstrata za sodobne brezžične aplikacije. Predlagana antena je sestavljena iz dveh krpic, prva je kvadratne oblike in je nameščena na substrat Taconic FR-30, sledi ji druga krpica, zgrajena kot meandrski obroč z dvema krakoma za povečanje generiranih frekvenčnih pasov. Predlagana krpica je v obliki črke U, da se zagotovi, da se antenski žarek razdeli na želene frekvenčne pasove. Poleg tega se za vzbujanje druge krpice uporablja kapacitivi sklop, medtem ko se prva krpica vzbuja s prevodnostjo z diskretnim priključkom 50 ?. Poleg tega je zasnovana in nameščena metapovršinska plast na drugo krpico kot superstrat za povečanje ojačitev antene. Rezultati kažejo največje ojačenje 8 dBi pri frekvenci 4,2 GHz z največjimi dimenzijami 108 × 108 mm2. Poleg tega antena deluje v dodatnih frekvenčnih pasovih (2,6 GHz, 4,2 GHz in 5,6 GHz) z najmanjšim koeficientom odboja -16,8 dB, -12,3 dB in -30,6 dB. Predlagana antena je zasnovana in analizirana s simulatorjem CST MWSTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaStrokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale