Toroidal dipole dielectric metasurfaces for mechanically tunable polarization beam splitting

被引：0
|
作者：
Zografopoulos, D. C. [1 ]
Algorri, J. F. [2 ,3 ,4 ]
Fuscaldo, W. [1 ]
Lopez-Higuera, J. M. [2 ,3 ,4 ]
Vergaz, R. [5 ]
Sanchez-Pena, J. M. [5 ]
Karolos, I. -A. [6 ]
Beccherelli, R. [1 ]
Tsioukas, V. E. [6 ]
Yioultsis, T. V. [7 ]
Kriezis, E. E. [7 ]
机构：
[1] CNR, Ist Microelettron & Microsistemi, I-00133 Rome, Italy
[2] Univ Cantabria, Photon Engn Grp, Santander 39005, Spain
[3] Inst Salud Carlos III Madrid, CIBER Bbn, Madrid 28029, Spain
[4] Inst Invest Sanitaria Valdecilla IDIVA, Santander 39011, Spain
[5] Carlos III Univ Madrid, Dept Elect Technol, Madrid 28911, Spain
[6] Aristotle Univ Thessaloniki, Sch Rural & Surveying Engn, Thessaloniki 54124, Greece
[7] Aristotle Univ Thessaloniki, Sch Elect & Comp Engn, Thessaloniki 54124, Greece
来源：
2023 17TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION, EUCAP | 2023年
基金：
巴西圣保罗研究基金会;
关键词：
dielectric metasurfaces; toroidal dipole resonances; polarization beam steering; microwave components;
D O I：
10.23919/EuCAP57121.2023.10133452
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An all-dielectric metasurface composed of high-permittivity ceramic cuboid resonators embedded in polylactic acid is investigated as an angular-dependent polarization beam splitter in the K-band. The operation is based on a strong toroidal resonance with a highly asymmetric Fano profile and the very low (high) dispersion of the associated p-(s-) polarized mode stemming from the particular field profile of the toroidal mode. Large extinction ratios, low insertion losses, and mechanically tunable polarization beam splitting ratio are experimentally demonstrated.
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页数：3
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