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Journal Articles Photonics Year : 2021

Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region

Shuai Yang
Chunsheng Guan
  • Function : Author
Xumin Ding
  • Function : Author
Kuang Zhang
Qun Wu
  • Function : Author

Abstract

In this paper, a 0.1λ0-thick 1-bit coding metasurface is proposed to achieve a polarization-insensitive hologram under oblique incidence, utilizing compact ground-backed patch unit cells. Fourier convolution theory in a digital signal processing system is added to the hologram calculation of the improved weighted Gerchberg–Saxton (GSW) algorithm to achieve control of the scattered pattern in the microwave region. As a proof of concept, a prototype operating at 15 GHz is designed to verify the validity of our proposed approach. The measured performances show good imaging quality under different incident polarizations, providing potential applications in imaging processing and information storage.
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Origin : Publication funded by an institution

Dates and versions

hal-04177652 , version 1 (15-01-2024)

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Shuai Yang, Chunsheng Guan, Xumin Ding, Kuang Zhang, Shah Nawaz Burokur, et al.. Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region. Photonics, 2021, 8 (6), pp.174. ⟨10.3390/photonics8060174⟩. ⟨hal-04177652⟩
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