Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region
نویسندگان
چکیده
In this paper, a 0.1λ0-thick 1-bit coding metasurface is proposed to achieve polarization-insensitive hologram under oblique incidence, utilizing compact ground-backed patch unit cells. Fourier convolution theory in digital signal processing system added the calculation of improved weighted Gerchberg–Saxton (GSW) algorithm control scattered pattern microwave region. As proof concept, prototype operating at 15 GHz designed verify validity our approach. The measured performances show good imaging quality different incident polarizations, providing potential applications and information storage.
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ژورنال
عنوان ژورنال: Photonics
سال: 2021
ISSN: ['2304-6732']
DOI: https://doi.org/10.3390/photonics8060174