{"title":"Wideband slot antenna array with gain stability based on metasurface","authors":"","doi":"10.1016/j.aeue.2024.155433","DOIUrl":null,"url":null,"abstract":"<div><p>A broadband slot antenna array based on metasurface with gain stability is proposed for the 5 GHz wireless local area network (WLAN) band in this paper. Firstly, multi-mode resonant theory is used to widen the bandwidth of the slot antenna. Then, a non-uniform rhombic metasurface is placed above the slot antenna to expand the bandwidth of the antenna further while increasing the gain. Finally, nine rectangular patches are placed at the non-uniform rhombic metasurface. And the current in the high-frequency is amplified which leads to the maximum gain variation of only 1.7 dBi across the entire operating frequency range (4.7–7.7 GHz). To verify the design, a 2 × 2 antenna array is fabricated. The antenna array achieved a bandwidth of 47.6 % (4.8–7.8 GHz) and a maximum gain of 15.2 dBi within the operating band. The 1 dBi gain bandwidth is 2.1 GHz (4.7–6.8 GHz).</p></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":null,"pages":null},"PeriodicalIF":3.0000,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aeu-International Journal of Electronics and Communications","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1434841124003194","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
A broadband slot antenna array based on metasurface with gain stability is proposed for the 5 GHz wireless local area network (WLAN) band in this paper. Firstly, multi-mode resonant theory is used to widen the bandwidth of the slot antenna. Then, a non-uniform rhombic metasurface is placed above the slot antenna to expand the bandwidth of the antenna further while increasing the gain. Finally, nine rectangular patches are placed at the non-uniform rhombic metasurface. And the current in the high-frequency is amplified which leads to the maximum gain variation of only 1.7 dBi across the entire operating frequency range (4.7–7.7 GHz). To verify the design, a 2 × 2 antenna array is fabricated. The antenna array achieved a bandwidth of 47.6 % (4.8–7.8 GHz) and a maximum gain of 15.2 dBi within the operating band. The 1 dBi gain bandwidth is 2.1 GHz (4.7–6.8 GHz).
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