Abstract A two-sided frequency selective surface (FSS) is proposed to shield two bands of the mobile frequencies (EGSM-900 and DCS-1800). The FSS consists an array square concentric-rings cells printed on both sides substrate offer better shielding frequencies. CST Microwave suit used for simulations. equivalent circuit model analysed transmission in terms stop estimated. obtained than 40 dB ac...

This paper presents a tri-band complementary frequency selective surface (CFSS) with very closely spaced bands and angular stability. The proposed CFSS element geometry is composed of double concentric rings. choice this because its good gap between resonance frequencies close, only 404 MHz from the first to second band 202 third second, which possible use CFSS. simulation performed using HFSS ...

Abstract A frequency selective surface (FSS) structure based on a circular slot with 28 to 31 μm was fabricated using Electron Beam Lithography combined wet etching technique 400 thick quartz substrate. The pattern, designed the CST software, transferred during (EBL) exposure 100 kV voltage acceleration, 2 nA of e-beam current, and line dosage 1000 μC . 0.5 aluminium layer deposited substrate t...

This article proposes a single-layer, dual-band, optically transparent frequency-selective surface (FSS) for GSM shielding. The design evolves from fractal cross dipole to achieve dual-band response, polarization insensitivity, and wide angle of incidence stability with miniaturized size. A two-axis symmetric structure helps provide stable frequency response incident waves different angles up 6...

In this paper, a flexible, ultra-thin, miniaturized broadband frequency selective surface (FSS) is demonstrated for wideband electromagnetic shielding application. The unit cell of the proposed FSS structure consists cross dipoles loaded with metallic circular strip. has an extremely low profile thickness 0.0009?o and size 0.045?o×0.045?o. This provides more than 20 dB from 1.1 to 2.6 GHz regio...

A novel mechanically tunable frequency selective surface (FSS) based on a sliding 3D-printed inserted dielectric is presented in this paper. This paper first introduces the working mechanism of FSS, which indicates that variable capacitance key to tunability. Based this, we design an all-metal bandpass FSS with certain thickness and matching cross-shaped dielectric. By changing insertion depth ...