High-impedance surfaces having stable resonance with respect to polarization and incidence angle

Simovski, Constantin; Maagt, P. de; Melchakova, Irina V.

doi:10.1109/tap.2004.842598

Cited by 182 publications

(112 citation statements)

References 11 publications

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“…30,34 However, in this paper we focus our attention on the study of FP-type resonances in multilayer structures with identical grids and identical dielectric slabs.…”

Section: Circuit Model Analysismentioning

confidence: 99%

Circuit modeling of multiband high-impedance surface absorbers in the microwave regime

et al. 2011

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In this paper, we present a simple circuit model to study the absorption of electromagnetic waves by a multilayer structure with a high impedance surface in the microwave regime. The absorber consists of a stack of twodimensional arrays of sub-wavelength meshes or patches separated by dielectric slabs and backed by a metallic ground plane, with a single resistive sheet placed on the top layer. We observe the appearance of low-frequency resonances of total absorption, which have been identified as the resonances of Fabry-Pérot type associated with the individual reactively loaded dielectric slabs (that are strongly coupled through the subwavelength grids). It is shown that these resonances lie within certain characteristic frequency band defined by the structural parameters of the absorber. The observed resonances are characterized by studying the electromagnetic field behavior using the circuit model and full-wave numerical program. In addition, we show that the patch array absorber provides stable resonances with respect to the angle and the polarization of obliquely incident plane waves.

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“…30,34 However, in this paper we focus our attention on the study of FP-type resonances in multilayer structures with identical grids and identical dielectric slabs.…”

Section: Circuit Model Analysismentioning

confidence: 99%

Circuit modeling of multiband high-impedance surface absorbers in the microwave regime

et al. 2011

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“…Figure 63(b) shows the rate of convergence of the two individual series G spectral and G spatial in (28) and (33), respectively, evaluated at the location (ρ, z) = (0.1, 0.1)d. The relative error is defined as in (44). The two series in G spectral and G spatial need different numbers of terms to achieve the same accuracy since we 1.E-10…”

Section: Extension To High Frequencymentioning

confidence: 99%

Analysis of electromagnetic scattering by nearly periodic structures: an LDRD report.

Johnson¹,

Warne²,

Jorgenson³

et al. 2006

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In this LDRD we examine techniques to analyze the electromagnetic scattering from structures that are nearly periodic. Nearly periodic could mean that one of the structure's unit cells is different from all the others -a defect. It could also mean that the structure is truncated, or butted up against another periodic structure to form a seam. Straightforward electromagnetic analysis of these nearly periodic structures requires us to grid the entire structure, which would overwhelm today's computers and the computers in the foreseeable future. In this report we will examine various approximations that allow us to continue to exploit some aspects of the structure's periodicity and thereby reduce the number of unknowns required for analysis. We will use the Green's Function Interpolation with a Fast Fourier Transform (GIFFT) to examine isolated defects both in the form of a source dipole over a meta-material slab and as a rotated dipole in a finite array of dipoles. We will look at the numerically exact solution of a one-dimensional seam. In order to solve a two-dimensional seam, we formulate an efficient way to calculate the Green's function of a 1d array of point sources. We next formulate ways of calculating the far-field due to a seam and due to array truncation based on both array theory and high-frequency asymptotic methods. We compare the high-frequency and GIFFT results. Finally, we use GIFFT to solve a simple, two-dimensional seam problem.3

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“…JCs offer a miniaturized structure over the conventional square-patch based FSS suggested originally by Sievenpiper et al [18]. Compared to the traditional Series-Resonant Grids, JC structures are more flexible on frequency selection and more miniaturized on size [19]. Hence, this structure was selected as candidate for the targeted application which requires the metasurface to follow certain properties in the target band.…”

Section: Introductionmentioning

confidence: 99%

A Dual-Band Low-Profile Metasurface-Enabled Wearable Antenna for Wlan Devices

Yang¹,

Wang²,

Yi³

et al. 2016

PIER C

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Abstract-This paper presents a compact, low-profile, wearable dual-band antenna operating in the Wireless WLAN band of 5.15 ∼ 5.25 GHz and 5.72 ∼ 5.83 GHz. The proposed antenna is composed of a planar monopole and underneath three by three array arrangement of Jerusalem Cross (JC) structure metasurface. The simulated results show that the integrated antenna express 4.09% and 4.14% impendence bandwidths, increased gain up to 7.9 dB and 8.2 dB, front to back (FB) ratio achieved to 20 dB and 18 dB at the two frequencies, respectively. The measured results agree well with simulations. In addition, the metasurface not only is equivalent to a ground plane for isolation, but also acts as the main radiator, which enables a great reduction in the specific absorption rate (SAR). Furthermore, because of a compact solution, the proposed integrated antenna can be a promising device for various wearable systems.

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High-impedance surfaces having stable resonance with respect to polarization and incidence angle

Cited by 182 publications

References 11 publications

Circuit modeling of multiband high-impedance surface absorbers in the microwave regime

Circuit modeling of multiband high-impedance surface absorbers in the microwave regime

Analysis of electromagnetic scattering by nearly periodic structures: an LDRD report.

A Dual-Band Low-Profile Metasurface-Enabled Wearable Antenna for Wlan Devices

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