COMPACT ELECTROMAGNETIC ABSORBERS FOR FREQUENCIES BELOW 1 GHz
TL;DR: In this paper, a novel frequency selective surface (FSS) conflguration is proposed for the design of polarization-insensitive metamaterial absorbers operating below 1GHz, where the flrst resonances of small commercial enclosures appear.
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Abstract: A novel Frequency Selective Surface (FSS) conflguration is proposed for the design of polarization-insensitive metamaterial absorbers operating below 1GHz, where the flrst resonances of small commercial enclosures appear. The novel FSS shows a strong sub- wavelength response, enhanced by the dielectric substrate, which allows the design of compact planar absorbers with excellent angular and polarization stability.
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Citations
Shielding Effectiveness Simulation of Small Perforated Shielding Enclosures Using FEM
Zdeněk Kubík,Jiří Skála +1 more
TL;DR: In this article, a numerical simulation of shielding effectiveness of a perforated shielding enclosure using the finite element method (FEM) is carried out, using the measurement of electric field inside the enclosure using an electric field probe with small dimensions.
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Modelling and Measurement of Electromagnetic Shielding Effectiveness
Merizgui Tahar,Hadjadj Abdechafik,Kious Mecheri +2 more
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TL;DR: In this paper, calculated shielding effectiveness SE results obtained by using different physical proprieties will have different electrical conductivity; magnetic permeability and thickness, and compared calculated setups, the analytic model presented in this paper is capable of predicting effects also infinite structures are observed.
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A Tri-Band Electromagnetic Absorber with Insensitive Properties
TL;DR: A rotational symmetry structure with a metallic ground is proposed for the design of the metamaterial absorber that has the merits of high absorption rate, stable performance with various incident angles and different polarizations.
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Effect of temperature on the Electromagnetic Characteristic Behavior of Copper
Tahar Merizgui,Abdechafik Hadjadj,Bachir Gaoui,Mecheri Kious +3 more
- 01 Nov 2018
TL;DR: In this article, the effect of temperature in the frequency range 0 Hz-108 Hz on the physical proprieties of metals especially on the conductivity taking the example of copper sheets was studied.
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Design and Fabrication of Metamaterial Absorbers Used for RF-ID
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TL;DR: In this paper, a grid-patterned metamaterial absorber was used to achieve a thin and multi-resonance absorber using patterned grids on a grounded dielectric substrate in the frequency region of UHF and microwaves.
References
New figures of merit for the characterization of the performance of shielding enclosures
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35
Extraction of broad-band passive lumped equivalent circuits of microwave discontinuities
TL;DR: A systematic general-purpose technique for the extraction of equivalent circuits of lumped discontinuities and interconnects from full-wave electromagnetic-field numerical data is presented and particular emphasis is laid on the approximation step.
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Toward a definition of the shielding effectiveness in the time - domain
Rodolfo Araneo,Salvatore Celozzi +1 more
- 21 Nov 2013
TL;DR: In this paper, an attempt of introducing new definitions of shielding parameters for time domain applications is presented, stemming from the victim point of view, for the design and comparison of a shield with others.
31
Analysis of the shielding performance of ferromagnetic screens
Rodolfo Araneo,Salvatore Celozzi +1 more
TL;DR: In this paper, a method for the analysis of ferromagnetic shields under low-frequency excitation conditions is presented, where the source types are arbitrarily oriented current loops or multiconductor lines.
29
Accurate Modeling of Monopole Antennas in Shielded Enclosures with Apertures
Xiao-Chun Nie,Ning Yuan +1 more
TL;DR: Li et al. as discussed by the authors presented an accurate model of a MONOPOLE ANTENNAS in SHIELDED ENCLOSURES with adjustable support surfaces, and compared with existing methods, the model presented in this paper considers the coupling between the monopoleantennas and shield-enclosure.