The RCS reduction of microstrip antenna design based on multi-band metamaterial absorber

Li, Wenhui; Shen, Yang; Zhang, Jieqiu; Sui, Sai; Yuan, Hangying; Qu, Shaobo

doi:10.1109/imws-amp.2015.7324998

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…MTMs have attracted significant attention due to their extensive potential application areas, such as imaging, optical switching, energy harvesting, bolometry, radar cross-sectioning, antenna side-lobe reduction, SAR reduction, solar cells, sensing, etc. [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Quad-Band Polarization-Insensitive Square Split-Ring Resonator (SSRR) with an Inner Jerusalem Cross Metamaterial Absorber for Ku- and K-Band Sensing Applications

Hakim

Alam

Islam

et al. 2022

Sensors

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The development of metamaterial absorbers has become attractive for various fields of application, such as sensing, detectors, wireless communication, antenna design, emitters, spatial light modulators, etc. Multiband absorbers with polarization insensitivity have drawn significant attention in microwave absorption and sensing research. In this paper, we propose a quad-band polarization-insensitive metamaterial absorber (MMA) for Ku- and K-band applications. The proposed patch comprises two square split-ring resonators (SSRR), four microstrip lines, and an inner Jerusalem cross to generate four corresponding resonances at 12.62 GHz,14.12 GHz, 17.53 GHz, and 19.91 GHz with 97%, 99.51%, 99%, and 99.5% absorption, respectively. The complex values of permittivity, permeability, refractive index, and impedance of MMA were extracted and discussed. The absorption mechanism of the designed MMA was explored by impedance matching, equivalent circuit model, as well as magnetic field and electric field analysis. The overall patch has a rotational-symmetrical structure, which plays a crucial role in acquiring the polarization-insensitive property. The design also shows stable absorption for both transverse electric (TE) and transverse magnetic (TM) modes. Its near-unity absorption and excellent sensing performance make it a potential candidate for sensing applications.

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Section: Introductionmentioning

confidence: 99%

Quad-Band Polarization-Insensitive Square Split-Ring Resonator (SSRR) with an Inner Jerusalem Cross Metamaterial Absorber for Ku- and K-Band Sensing Applications

Hakim

Alam

Islam

et al. 2022

Sensors

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show abstract

“…By reducing the RCS, the detection of radar is prevented and increased its survivability. The design described in [2] contains a microstrip antenna coated with metamaterial by having similar substrate and ground plane. Some space is left between antenna and metamaterial absorber to reduce the coupling effect and to keep the radiation performance unchanged.…”

Section: Applicationsmentioning

confidence: 99%

“…Compared with the conventional absorbers such as Salisbury screen and Jaumann absorber [1], metamaterial absorber has light weight, low cost and near-unity absorbance. Radar cross section reduction (RCS) [2], energy harvesting [3], electromagnetic shielding [4] and refractive index sensing [5] are some of the applications of the absorber. The structure of metamaterial absorber is similar to a sandwich model with 3 layers-top resonator layer, bottom ground plane and a dielectric substrate in the middle [6].…”

Section: Introductionmentioning

confidence: 99%

A Review on Electromagnetic Metamaterial Absorbers

Viji,

Anujan

2023

2023 International Conference on Control, Communication and Computing (ICCC)

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Metamaterials are artificially engineered materials that possess properties that are not present naturally. They show some specific properties such as negative refractive index, negative permittivity, negative permeability and left hand behavior. Metamaterial absorbers have greater attention in nowadays because of its ability to absorb incident electromagnetic radiation. The structure consists of resonator layer, dielectric substrate and metallic ground plane. They are applicable in radar cross section reduction (RCS), energy harvesting, electromagnetic shielding and refractive index sensing. In this paper, various metamaterial absorbers and their applications are reviewed. Initially the theory and working of metamaterial absorbers are discussed. Several multiband absorbers and their absorptivity are then presented. Next, the review focuses on several broadband absorbers and polarization insensitive absorbers. By using these metamaterial absorbers, we can make near-unity absorption.

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Terahertz RCS reduction employing reconfigurable graphene-based AMC structures

Gaber,

Ibrahim

2024

Opt Quant Electron

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Recently, modern technology has towards stealth technology, especially in military applications so, this paper presents a terahertz radar cross-section (RCS) reduction utilizing reconfigurable graphene-based artificial magnetic conductor (AMC) arrays. The AMC unit cell has a Vivaldi shape with circular slots etched in the radiator to reduce the RCS from metallic surfaces at THz bands. The AMC cells affect the surface impedance of the metallic objects which reduces the reflected EM waves from them. The RCS reduction bandwidth is achieved and controlled by varying the voltage applied to graphene cells which varies its chemical potential (µc). The effect of changing the graphene conductivity on the RCS reduction is investigated. Different arrangements to obtain maximum RCS reduction are presented. A 12 × 12 hybrid arrangement of the graphene-based AMC structures achieved maximum RCS reduction from 1.5 to 4 THz with 22 dB greater than the unloaded metallic surface. The CST simulator is employed in the simulation.

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The RCS reduction of microstrip antenna design based on multi-band metamaterial absorber

Cited by 6 publications

References 8 publications

Quad-Band Polarization-Insensitive Square Split-Ring Resonator (SSRR) with an Inner Jerusalem Cross Metamaterial Absorber for Ku- and K-Band Sensing Applications

Quad-Band Polarization-Insensitive Square Split-Ring Resonator (SSRR) with an Inner Jerusalem Cross Metamaterial Absorber for Ku- and K-Band Sensing Applications

A Review on Electromagnetic Metamaterial Absorbers

Terahertz RCS reduction employing reconfigurable graphene-based AMC structures

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