Critical analysis of periodic fractal frequency selective surfacescoupled with synthesised ferrite‐based dielectric substrates for optimal radarwave absorption

Mishra, Varsha; Panwar, Ravi; Singh, Arunima; Puthucheri, Smitha; Singh, Dharmendra

doi:10.1049/iet-smt.2018.5280

Cited by 5 publications

(2 citation statements)

References 34 publications

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“…In 2018, Qi et al [18] proposed a double symmetrical W-shaped structure to obtain reflected circularly polarized waves. In the same year, Mishra et al [19] used a fractal structure to realize the absorption band enhancement. The special sub-wavelength structure and stunning physical features of metamaterials-based polarization converters and absorbers not only can make great achievements in ultra-thin and miniaturized devices but also meet the requirements of broadband and reconfigurable features.…”

Section: And Advancedmentioning

confidence: 99%

A Solid State Plasma Multifunctional Metamaterial and Its Application for Energy Absorbing and Cross Polarization Conversion

Zeng

Tian

et al. 2020

IEEE Access

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With the increasing expectations of electromagnetic devices, the defects of monofunctional devices that are susceptibly limited by external constraints are becoming more and more obvious and the integration of multiple functions has gradually become the pursuit of researchers. In this paper, a novel multifunctional metamaterial tailored by the solid state plasma (SSP) is proposed. By inspiring the particular SSP resonators, such a metamaterial can be handily switched back and forth among two functions and form three working states. When the proposed SSP metamaterial is served in State I, its function embodies as an energy absorber and the absorption which is over 90% for TE and TM modes are 5.84-7.30 GHz and 5.41-6.34 GHz whose relative bandwidths (RBs) are 22.22% and 15.83%, respectively. States II and III keep the same functionality of cross-polarization conversion but a distinct operating band. The polarization conversion rate (PCR) of State II which is higher than 90% is 7.40-12.20 GHz (the RB is 48.98%) and this operational range will be shifted to 5.71-8.47 GHz (the RB is 38.92%) after switching to State III. Compared with the conventional tunable devices, this SSP metamaterial has the advantage of functional diversity and it provides a new design idea of absorber and polarization converter to promote potential applications of multifunctional devices.

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Section: And Advancedmentioning

confidence: 99%

A Solid State Plasma Multifunctional Metamaterial and Its Application for Energy Absorbing and Cross Polarization Conversion

Zeng

Tian

et al. 2020

IEEE Access

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“…The design of thin but broadband microwave absorbers is an open problem, and many studies have been conducted on it. Some methods have been examined to achieve these goals by adopting multilayer [7,8], multi-resonance [9][10][11], magnetic materials [12][13][14], frequency selective surfaces (FSS) [11,[15][16][17][18], and metamaterials (MM) [19][20][21][22]. Although multilayered and/or multi-resonance techniques are useful methods to enhance the bandwidth, they have the disadvantages of thickness and size as well as difficulty in fabrication due to the complexity of the structures [7].…”

Section: Introductionmentioning

confidence: 99%

Design of Thin and Wideband Microwave Absorbers Using General Closed-Form Solutions

Lyou

Kim

Lee

2021

J Electromagn Eng Sci

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A new design method for RLC reactive absorbers is presented. This method is based on closed-form solutions to help realize the widest absorption bandwidth for an arbitrarily specified thickness. The solutions for the RLC values of the reactive screen are derived using an equivalent circuit in which the thickness of the substrate used, the permittivity and tangential loss of the substrate, and the frequency are all considered. A perfect match and maximum bandwidth at a design frequency can be achieved with the proposed method. Various aspects of the absorber characteristics, depending on the thickness and loss of the substrate, are analyzed using the presented solutions and electromagnetic (EM) simulations. To validate the proposed design method, an X-band microwave absorber with a crossed-dipole structure patterned on a silver nanowire resistive film is designed, fabricated, and measured. The substrate electrical thickness of the absorber is 70° at 10 GHz, with a permittivity of 2.2. The 90% absorption bandwidth is 8 GHz in the frequency range of 8.2–16.2 GHz. The measured absorption agrees well with the results obtained using circuit and EM simulations.

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Design, Optimization, and Critical Analysis of Hybrid Frequency Selective Surface in the Range of 1–18 GHz

Jorwal

Chaudhary

Yadav

et al. 2021

Lecture Notes in Electrical Engineering

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Critical analysis of periodic fractal frequency selective surfacescoupled with synthesised ferrite‐based dielectric substrates for optimal radarwave absorption

Cited by 5 publications

References 34 publications

A Solid State Plasma Multifunctional Metamaterial and Its Application for Energy Absorbing and Cross Polarization Conversion

A Solid State Plasma Multifunctional Metamaterial and Its Application for Energy Absorbing and Cross Polarization Conversion

Design of Thin and Wideband Microwave Absorbers Using General Closed-Form Solutions

Design, Optimization, and Critical Analysis of Hybrid Frequency Selective Surface in the Range of 1–18 GHz

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