{"title":"A broadband power amplifying metasurface with polarization conversion","authors":"Weixiong Huang, Shixing Yu, Na Kou","doi":"10.1016/j.optcom.2025.131532","DOIUrl":null,"url":null,"abstract":"<div><div>This paper proposes a broadband power amplifying metasurface with polarization conversion (PC-PAM). The metasurface is composed of a circular radiating patch on the top, a bowtie slot in the middle and a microstrip feed line backed with a ground plane on the bottom. To minimize the number of amplifier chip used, four elements (2 × 2) share one amplifier chip and they are connected by the T-shaped power dividers to form a sub-array. Next, four sub-arrays are constructed with corresponding feed network for 4 × 4 elements. Measured results show that the proposed metasurface can convert polarization of incident wave and amplify the power of reflected waves by 2.4 dB–7.8 dB in the frequency range of 4.8 GHz–6.0 GHz with a relative bandwidth of 22.2%. Compared with conventional polarization converting metasurfaces, our proposed design can perform polarization conversion while amplifying the reflected power simultaneously, which can be applied in enhancement of wireless signal coverage.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"579 ","pages":"Article 131532"},"PeriodicalIF":2.5000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics Communications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030401825000604","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/16 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
This paper proposes a broadband power amplifying metasurface with polarization conversion (PC-PAM). The metasurface is composed of a circular radiating patch on the top, a bowtie slot in the middle and a microstrip feed line backed with a ground plane on the bottom. To minimize the number of amplifier chip used, four elements (2 × 2) share one amplifier chip and they are connected by the T-shaped power dividers to form a sub-array. Next, four sub-arrays are constructed with corresponding feed network for 4 × 4 elements. Measured results show that the proposed metasurface can convert polarization of incident wave and amplify the power of reflected waves by 2.4 dB–7.8 dB in the frequency range of 4.8 GHz–6.0 GHz with a relative bandwidth of 22.2%. Compared with conventional polarization converting metasurfaces, our proposed design can perform polarization conversion while amplifying the reflected power simultaneously, which can be applied in enhancement of wireless signal coverage.
期刊介绍：
Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.
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