In this paper, we propose the design of a metasurface based on the methodology of high periodicity super-cell designs <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">(5.76λ)</tex> and impedance modulation to achieve various numbers of beam splitting angles while maintaining the same coverage at multiple incident angles for millimeter wave (mm-Wave) frequency. Our proposed design achieves a reflection efficiency of up to 96.65% and 97.36% in TE and TM mode at 28 GHz with 11 beam directions <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">θᵢ=0∘, θₐ=0∘, ± 10∘, ± 20.32∘, ± 31.40∘, ± 44∘</tex> and <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">± 60.25∘</tex> while maintaining similar performances for various incident angles which makes it a valuable complementary solution to enhance coverage for mm- Wave communication applications compared to conventional beam splitters. The performance of the metasurface is determined by calculating the bistatic radar cross section (RCS) compared to a flat metallic plate of similar dimensions. A prototype is fabricated and tested to validate the simulation results.
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Jibran et al. (2024) studied this question.
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