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Mosaic frequency selective surface with wideband response for the optically transparent and absorber applications

Mohamed Nafis, Nur Biha and Mohamed Himdi, Mohamed Himdi and A. Rahim, Mohamad Kamal and Merzaki, Faissal (2022) Mosaic frequency selective surface with wideband response for the optically transparent and absorber applications. In: 16th European Conference on Antennas and Propagation, EuCAP 2022, 27 - 1 April 2022, Madrid, Spain.

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Official URL: http://dx.doi.org/10.23919/EuCAP53622.2022.9769471

Abstract

This study investigated the performance of a Mosaic Frequency Selective Surface (MFSS) structure for two different applications: optical transparency and absorber. The MFSS for optical transparency application is comprised of a polycarbonate substrate with permittivity, varepsilon_{r} of 2.9, and the MFSS for absorber application utilized a Polyethylene Terephthalate (PET) substrate with varepsilon_{r} of 2.7. The MFSS unit cell is composed of a conductive metallic element design that integrates the Koch fractal and the double hexagonal loop for the optical transparency application. Meanwhile, the resistive MFSS unit cell with sheet resistivity of 100 Omega/text{sq} is utilized for the absorber application. A Computer Simulation Technology (CST) Microwave Studio software is employed to carry out the calculation and frequency response analysis for both applications. Based on the results, it was concluded that the transparent MFSS yielded a wideband stopband and passband responses (fractional bandwidth (text{FBW}) > 50%) with a low cross-polarization (-37 dB), and a wideband absorptivity response was achieved with thin MFSS absorber. In addition, the simulated and measured responses of the transparent MFSS achieved well-fitted correlations. The findings indicated that the proposed MFSS unit cell able to provide wideband response for both applications.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:absorber, fractal, low cross-polarization, mosaic frequency selective surface, optical transparency, wideband
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:98761
Deposited By: Widya Wahid
Deposited On:02 Feb 2023 08:30
Last Modified:02 Feb 2023 08:30

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