Journal ArticleDOI
An Ultrathin and Broadband Radar Absorber Using Resistive FSS
TLDR
In this article, an ultrathin and broadband radar absorber comprising single-layer resistive frequency selective surface (FSS) is investigated, which can provide a 10dB radar cross section reduction for the conducting plate over the frequency range of 10.7-29 GHz, which is equivalent to a relative bandwidth of 92.2%.Abstract:
An ultrathin and broadband radar absorber comprising single-layer resistive frequency selective surface (FSS) is investigated in this letter. The resistive FSS layer constructed from resistive/low-conductivity treble-square loops is backed by a grounded foam material. Numerical results show that the proposed absorber can provide a 10-dB radar cross section (RCS) reduction for the conducting plate over the frequency range of 10.7-29 GHz, which is equivalent to a relative bandwidth of 92.2%. Moreover, the structure has the thickness of 2 mm (only 0.071 to 0.193 at lowest and highest frequencies, respectively). The equivalent circuit model is then used to introduce the working principles of the proposed absorber.read more
Citations
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Journal ArticleDOI
On the Design of Single-Layer Circuit Analog Absorber Using Double-Square-Loop Array
TL;DR: In this article, a single-layer circuit analog absorber using double-square-loop array reveals that three resonances can be obtained within its operating frequency band, and an equivalent circuit model is proposed to explain how these three resonance can be produced and its absorption bandwidth can be widened.
Journal ArticleDOI
A broadband terahertz absorber using multi-layer stacked bars
TL;DR: In this article, a broadband terahertz (THz) metamaterial absorber was constructed by stacking 12 metallic bars of varying lengths on three polyimide layers with equal spacing, and a broadband absorption spectrum was formed through merging multiple successive resonance peaks.
Journal ArticleDOI
Design of Absorptive/Transmissive Frequency-Selective Surface Based on Parallel Resonance
TL;DR: In this paper, a frequency-selective surface (FSS) with high in-band transmission at high frequency and wideband absorption at low frequency is presented. But the PLC structure is not considered.
Journal ArticleDOI
Frequency-Selective Rasorber With Interabsorption Band Transparent Window and Interdigital Resonator
TL;DR: In this article, a novel frequency-selective rasorber (FSR) is proposed, which has a nearly transparent window between two absorption bands, and the insertion loss of FSR at the resonant frequency of lossless bandpass FSS is proven to be only related to the equivalent impedance of the resistive sheet.
Journal ArticleDOI
Ultra-broadband infrared metasurface absorber.
TL;DR: The design of an ultra-broadband infrared absorber based on metasurface is demonstrated and it is demonstrated that the absorption bandwidth can be greatly expanded by using two layers of metAsurface, i.e. dual-layered absorber.
References
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Journal ArticleDOI
Reflection properties of the Salisbury screen
R. Fante,M.T. McCormack +1 more
TL;DR: In this paper, the reflection properties of multiple electric/magnetic Salisbury screens have been studied and it is shown that relatively large reductions in specular reflection are possible over sizeable bandwidths using relatively few Salisbury screen screens.
Journal ArticleDOI
Analysis and Design of Ultra Thin Electromagnetic Absorbers Comprising Resistively Loaded High Impedance Surfaces
TL;DR: In this paper, the effect of the surface resistance of the FSS and dielectric substrate characteristics on the input impedance of the absorber is discussed by means of a circuital model.
Journal ArticleDOI
Analysis and Design of Ultra Thin Electromagnetic Absorbers Comprising Resistively Loaded High Impedance Surfaces
TL;DR: In this paper, the effect of the surface resistance of the FSS and dielectric substrate characteristics on the input impedance of the absorber is discussed by means of a circuital model.
Journal ArticleDOI
Equivalent circuit model for arrays of square loops
TL;DR: In this paper, a simple equivalent circuit model for square-loop arrays is presented, which predicts the plane-wave transmission characteristics for normal incidence, and a new member of the group of arrays for which simple equivalent circuits are available.