Design of a narrow band and wideband absorbers using resistive FSS concept for the X and Ku band application

Silva, M. W. B.; Araujo, H. X.; Campos, Antônio Luiz P. S.

doi:10.1002/mop.31305

Cited by 12 publications

(6 citation statements)

References 15 publications

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“…The angular stability analysis of the metasurface is critical in the application [ 23 , 29 , 30 , 31 ]. According to this, the wide-angle property is investigated at the simulated absorptance in different incident angles as shown in Figure 9 .…”

Section: The Absorption Mechanism Of the Mmamentioning

confidence: 99%

Mutual Coupling Suppression of GPR Antennas by Depositing Wideband Meta-Absorber with Resistive Film

Zhou

Guo

et al. 2022

Materials

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The direct wave between the transceiver antenna negatively affects the dynamic range and imaging quality of ground penetrating radar (GPR). Suppressing this direct wave is a vital problem in enhancing the performance of the whole GPR system. In this paper, a Minkowski-fractal metamaterial absorber (MMA) with the resistive film is proposed in the GPR transceiver antenna to reduce the mutual coupling. The simulated and measured results indicate that this MMA has an effective wideband absorption in 1.0-8.0 GHz. And the thickness of MMA is only 0.007 λ0 (with respect to 2.0 GHz). This wideband MMA can reduce the mutual coupling of the proposed GPR transceiver antenna by an average of 10 dB. And it also mitigates the time-domain ringing problem of the transmit antenna. Real-world experiments demonstrate that the direct wave from the transmitting antenna can be reduced and the target echo arriving at the receiving antenna can be increased if this MMA is placed in the proposed transceiver antenna. This resistive film-based MMA offers great promise in realizing low-cost, compact, and lightweight GPR antennas, which can also be extended to high-frequency microwave imaging.

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Section: The Absorption Mechanism Of the Mmamentioning

confidence: 99%

Mutual Coupling Suppression of GPR Antennas by Depositing Wideband Meta-Absorber with Resistive Film

Zhou

Guo

et al. 2022

Materials

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“…[1][2][3][4] The FSS comes in two fundamental types depending on the two-Frequency selective surface (FSS) metamaterials with various structures have been proposed for use in radar-stealth devices in various bands. [32][33][34][35][36][37][38] Moreover, several studies have focused on the construction of bi-stealth devices with the combined functionalities of IR and radar stealth technologies. The basic working principles of the bi-stealth device include (i) an increased absorbance in order to minimize the radar scattering cross section, and (ii) an increased reflectivity in the IR wavelength range in order to reduce the thermal radiation signature of the object.…”

Section: Introductionmentioning

confidence: 99%

A Multispectral Single‐Layer Frequency Selective Surface Absorber for Infrared and Millimeter Wave Selective Bi‐Stealth

Shim

Han

Song

et al. 2022

Advanced Optical Materials

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dimensional periodic structure, namely, the inductive type and the conductive type. [5][6][7] The inductive FSS commonly functions as a band-pass filter that exhibits high transmission at the resonance frequency of the two-dimensional inductive structure. [5,6] By contrast, the conductive FSS exhibits band-stop properties with a strong reflection peak at the resonance frequency. [5,7] In addition to transmission and

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“…FSS is a resonant structure that exhibits an instantaneous response created by the replication of a unit cell element. Its general applications are as pass‐band filter (allow electromagnetic wave transmit), 7 RCS reducers in radomes, 8 absorber, 9 beam splitters, 10 or stop‐band filter (reflect electromagnetic wave) 11 . In Reference 12, a truncated dumbbell‐shaped FSS superstrate is introduced.…”

Section: Introductionmentioning

confidence: 99%

A wideband high gain trapezoidal monopole antenna backed by frequency selective surface

Nguyen

Seo

2021

Micro & Optical Tech Letters

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In this paper, a wideband, high gain planar trapezoidal monopole antenna based on single‐layer frequency selective surface (FSS) is presented. The antenna adopts an unconventional, dual‐metallic on a single‐layer FSS structure as a reflector layer to improve its performance. To validate the structure, the prototypes are fabricated and measured. The experimental results exhibit that the operating band of the proposed antenna covers 3.52–5.92 GHz, which corresponding to the impedance bandwidth of 50% with respect to the 5 GHz is the center frequency. Moreover, the proposed antenna offers a high gain with the maximum gain of 11.8 dBi at 5.1 GHz, and the gain is sustained higher 10.5 dBi for the entire bandwidth. The proposed antenna structure is a potential candidate for wideband applications and wireless local area network applications.

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Design of a narrow band and wideband absorbers using resistive FSS concept for the X and Ku band application

Cited by 12 publications

References 15 publications

Mutual Coupling Suppression of GPR Antennas by Depositing Wideband Meta-Absorber with Resistive Film

Mutual Coupling Suppression of GPR Antennas by Depositing Wideband Meta-Absorber with Resistive Film

A Multispectral Single‐Layer Frequency Selective Surface Absorber for Infrared and Millimeter Wave Selective Bi‐Stealth

A wideband high gain trapezoidal monopole antenna backed by frequency selective surface

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