A miniaturized and wide-angle 3D metamaterial for reflective polarization conversion

Deng, Guangsheng; Yu, Zhenchun; Yin, Zhiping; Yang, Jun; Liu, Ying

doi:10.1016/j.optmat.2022.113017

Cited by 3 publications

(1 citation statement)

References 31 publications

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“…For further investigation, it is important to understand whether the reflected wave is RHCP or LHCP. Therefore, Stokes parameters are utilized to obtain the normalized ellipticity, e=S3/S0, as following [46] 22 , and the reflected wave is an LHCP. k is an integer for both circumstances.…”

Section: Methods and Reflection Coefficientsmentioning

confidence: 99%

Reflective Polarization Conversion with Multi-Functional, Ultrathin Metasurface for Ku- and K-Band Applications

Teber

2024

Gazi University Journal of Science

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Reflective polarization conversions with a simplistic design of an ultrathin, single-layered, and multi-functional anisotropic metasurface as a polarization converter is utilized for Ku- and K-band applications. The designs with two substrate thicknesses (0.095λ0 and 0.069λ0, respectively) are capable of a cross-polarization converter (CPC) and a linear-to-circular (LTC) polarization conversion. The design with 0.095λ0 thickness achieves a CPC between 17.96 and 26.90GHz with the efficiency of more than 90% and a relative bandwidth of 40% under normal incidence. It maintains angular stability by altering the oblique incidence angles up to 300 with greater than 80% of the PCR in the K-band. Meanwhile, an LTC in two frequency bands, 10.30-10.53GHz and 28.65-29.70GHz, is also numerically demonstrated. The second design with 0.069 λ0 thickness provides a CPC above the PCR value of 87% in the frequency range from 10.46-23.05GHz (covering the entire Ku- and part of the K-band) with angular stability of 40 above the PCR value of 80%. In the meantime, an LTC with relative bandwidth of 75% in the frequency range from 9.53-9.79&24.74-25.27GHz is numerically revealed. These polarization converters exhibit relatively good performances of facile structure and multi-functional properties, which can be useful in Ku- and K-band applications.

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Section: Methods and Reflection Coefficientsmentioning

confidence: 99%