Design, Characterization, and Optimization of a Multilayer U-type Hexaferrite-Based Broadband Microwave Absorber

Padhy, Sankarsan; De, Arijit K.; Debata, Rashmi Ranjan; Meena, Ram Swaroop

doi:10.1109/temc.2018.2805364

Cited by 28 publications

(10 citation statements)

References 22 publications

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“…Afterward, several works have been proposed in designing antennas by applying GAs 167,168 . Then not only GA, 19,20,23,33,55,88,96,105,110 but also the other optimization algorithms were intensively applied to various techniques of RCSR, 27,33,88,92‐94,102,104,106,108,111,116,118,120,127,128,134,137,138,143,145,148,169,170 to improve their characteristics and performance. These algorithms are particle swarm optimization (PSO), 102,106,111,127,128,134,137,143,169 Ergodic algorithm, 116 simulated annealing algorithm, 119,171 micro‐GA, 27,170 ant colony optimization algorithm, 170 the Method of Least Squares (MLS), 33 conjugate Gradient (CG), 33 group search optimization (GSO), 92,93 discrete water cycle algorithm (DWCA), 145 and hybrid optimization algorithm, 33,94,108,118,170 to mention a few of the most important ones.…”

Section: Optimization Algorithms Used In Rcsr Approachesmentioning

confidence: 99%

“…Recently, in Reference 12, Ji et al have used plasma and metamaterial as coating layers defined and analyzed by finite‐difference time‐domain (FDTD) method for RCSR of a cylinder. Similar to the shaping methods, coatings suffer from narrow RCSR bandwidth and high fabrication complexity. Using absorbent materials : absorbent materials (ie, radar absorbent material (RAM), 13‐22 microwave‐absorbing material (MAM), 21,23‐27 high impedance surface (HIS), 28‐30 and metamaterial absorber (MA)/ perfect metamaterial absorber (PMA) 31‐45 ) have been studied since 1950s 1 . These materials are lossy layers loaded on the target 46 which absorb the incoming EM energy and transform it into heat so that the backscattered EM wave to the radar receiver is decreased.…”

Section: Introductionmentioning

confidence: 99%

“…Later, some works have been proposed to improve the bandwidth, 15‐17 the thickness, 13 the incident angle region 15,18 of the Salisbury screen structures. Afterward, several RAM and MAM structures have been proposed and developed for RCSR in a wider range of frequency with different numbers of layers 19,20,26 . Recently, a comparative study has been conducted in Reference 21 between different approaches of RAM structures whose reflectivity value was less than −16 dB on average in a frequency band of 8 to 26 GHz for TE/TM modes and incident angles up to 50°.…”

Section: Introductionmentioning

confidence: 99%

“…Also, the produced heat by these absorbent materials makes the target detectable for infrared detectors. Although a lot of efforts have been done on these materials and their thickness has been decreased in some works 13,20 as it was mentioned, their disadvantages outweigh their advantages and make them inefficient and impractical for many applications.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Passive techniques for target radar cross section reduction: A comprehensive review

Zaker

Sadeghzadeh

2020

Int J RF Microw Comput Aided Eng

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In this article, a comprehensive review of published techniques for reducing radar cross-section (RCS) of a target in various military and industrial applications is presented. This review contains the developments in this field over the last 24 years. In this comparative review, existing RCS reduction (RCSR) methods are categorized based on the type and the shape of their structures and their electromagnetic behavior and a variety of techniques of passive cancelation for RCSR is presented including the structures formed by both conductor and dielectric such as frequency selective surface, electromagnetic band gap, artificial magnetic conductor, different types of metasurfaces, polarization rotation reflective surface, and their combinations as hybrid techniques. A section is allocated for comparison in which a comprehensive comparison is drawn based on different characteristics of the structures, that is, the number and thickness of substrate layers, complexity and cost, RCSR bandwidth and level, their efficiency for TE and TM polarization, and their pros and cons. Moreover, the standard simulation and measurement setups and different kinds of optimization algorithms such as genetic algorithm, particle swarm optimization, and so on applied for RCS are presented and described. Finally, the conclusion, recommendations for future researches, and a trend of how the topic is possibly moving forward to overcome the main challenges are presented.

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Section: Optimization Algorithms Used In Rcsr Approachesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Passive techniques for target radar cross section reduction: A comprehensive review

Zaker

Sadeghzadeh

2020

Int J RF Microw Comput Aided Eng

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“…But to design, a multilayer absorber that has many unknown parameters is really a difficult task. Therefore, a three-layer MAM has been optimised using Genetic algorithm (GA) 11 . To validate and verify the optimisation technique, full-wave simulation using Ansys high frequency structure simulator (HFSS) has been carried out and the results of both the techniques are compared.…”

Section: Introductionmentioning

confidence: 99%

Development of E Waste based Composite Microwave Absorbing Material

et al. 2021

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Microwave absorbing materials (MAMs) are widely researched due to their use in many practical applications including both civil and defense sectors. Irrespective of the humongous efforts of various researchers, the development of a wide bandwidth, thin coating thickness, and low-cost microwave absorber is still a challenging task. The existing materials have not been able to meet all the specifications together at once and require a trade-off in the performance parameters. In this paper, we have empirically corroborated a cost-effective technique using E-waste material for synthesising composite MAM. It is herein shown that the addition of different wt% of copper, graphite, and titanium dioxide in the E-waste successfully resulted in enhanced absorption due to altered electrical properties of the E-waste suitable for microwave absorption. The multilayering technique with the help of a genetic algorithm has also been used to broaden the bandwidth. As a result, a three-layer MAM with the total coating thickness of 3.2 mm has been synthesised showing the wideband absorption bandwidth of 8.47 GHz in the frequency range from 6.92 to 15.39 GHz. The results suggested that microwave absorption of E-waste can be drastically improved by appropriately tailoring electrical parameters such as permittivity and permeability.

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Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

Mohammed

Mohammed²,

Srivastava

2022

Cryst. Res. Technol.

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With the fast growth of wireless communication technology in high‐frequency ranges, electromagnetic (EM) interference has become a growing concern that has drawn international attention. The development of materials that can absorb EM radiation is a crucial solution. This review provides a detailed overview of ferrites, specifically hexagonal ferrites and their composites for microwave (MW) absorption. It examines hexagonal ferrite classifications based on the stacking order of their fundamental blocks and their synthesis methods and strategies for improving their magnetic properties. On the other hand, this review included a detailed examination of hexagonal ferrites–conducting polymer, hexagonal ferrites–2D materials, and hexagonal ferrite–other nanomaterials composites for MW absorption applications. Enhancing MW absorption in hexagonal ferrites‐based microwave absorption materials (MAMs) regulates their EM characteristics, improves impedance matching, and creates a diversity of loss mechanisms. In addition, the limitations, challenges, and opportunities of hexagonal ferrites‐based MAMs are discussed, which will be helpful to those working in related areas. As a general application potential, it is worth mentioning that, as a result of recent promising findings in the synthesis of hexagonal ferrites‐based composites, hexaferrite‐based composites are suitable devices in the area of microwave absorption.

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Design, Characterization, and Optimization of a Multilayer U-type Hexaferrite-Based Broadband Microwave Absorber

Cited by 28 publications

References 22 publications

Passive techniques for target radar cross section reduction: A comprehensive review

Passive techniques for target radar cross section reduction: A comprehensive review

Development of E Waste based Composite Microwave Absorbing Material

Recent Progress in Hexagonal Ferrites Based Composites for Microwave Absorption

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