A Miniaturized and High Optically Transparent Frequency Selective Surface for RF Shielding Using Double-Glazed Glass Windows for Green Building Applications

A Miniaturized and High Optically Transparent Frequency Selective Surface for RF Shielding Using Double-Glazed Glass Windows for Green Building Applications

This research presents a miniaturized and high optically transparent (OT) frequency selective surface (FSS) for achieving RF shielding through glass window panels. The proposed FSS consists of a single-layered copper pattern sandwiched between two ordinary glass substrates to suppress the dual bands...

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Bibliographic Details
Main Authors: Muhammad Nasir, Slawomir Koziel, Adnan Iftikhar
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
Subjects:
FSS
optical transparency
sub-6 5 GHz
ordinary glass windows
shielding effectiveness
Online Access:https://ieeexplore.ieee.org/document/10849559/
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Summary:This research presents a miniaturized and high optically transparent (OT) frequency selective surface (FSS) for achieving RF shielding through glass window panels. The proposed FSS consists of a single-layered copper pattern sandwiched between two ordinary glass substrates to suppress the dual bands of sub-6 fifth generation (5G). In particular, the design effectively shields n65-downlink (2.1 GHz) and a portion of n78-band (3.5 GHz). The unit cell (UC) design consists of square and butterfly rings with a maximum copper width of 0.1 mm. The dimensions of FSS unit cell (UC) are optimized to <inline-formula> <tex-math notation="LaTeX">$0.0714\lambda _{0}\times 0.07146\lambda _{0}$ </tex-math></inline-formula>, where <inline-formula> <tex-math notation="LaTeX">$\lambda _{0}$ </tex-math></inline-formula> is the wavelength at 2.1 GHz resonant frequency. Full-wave electromagnetic (EM) simulations, equivalent circuit modeling (ECM), and experimental testing are performed to validate the FSS performance. The design miniaturization and 0.1 mm copper trace width offered a maximum OT of 91.6 % and angular stability up to <inline-formula> <tex-math notation="LaTeX">${85}^{^{\circ }}$ </tex-math></inline-formula> for both transverse electric (TE) and transverse magnetic (TM) polarized waves.
ISSN:2169-3536

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