Design and Optimization of Multilayered Microwave Absorber Structures for X-Band Frequencies: Application on Composite Materials Comprising Ceramic, Polyaniline/Magnetite, and Carbon Nanotubes

IF 1.6 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Numerical Modelling-Electronic Networks Devices and Fields Pub Date : 2024-12-25 DOI:10.1002/jnm.70006

Benzaoui Karim, Ales Achour, Medjaouri Youcef Amin, Zaoui Abdelhalim

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引用次数: 0

Abstract

The characteristics of multilayered microwave absorbing materials are very efficient compared with those of single layer. In this article, a hybrid optimization algorithm (genetic algorithm + pattern search) combined with transmission line matrix method has been presented. The selection of parameters, including the arrangement of layers, thickness of layers, absorption index, and shielding efficiency, forms the foundation of this process. The optimization algorithm was applied to two new multilayered structures. The first structure consists of conductive layers (CLs) of carbon nanotube (CNT) with ceramic layers of zirconium dioxide $({ZrO}_{2})$ . The second structure includes CLs of CNT with layers based on magnetite polyaniline nanomaterial (PANI_ ${Fe}_{3} O_{4}$ ). Performances of both structures were evaluated in the X-band frequency range. Simulation results showed that both designs have higher absorption index picks (> 90%) and, low $S_{11}$ magnitude value with low layer thickness. This approach offers a solid foundation for future experimental trials in the development of efficient microwave absorbing and shielding structures with tunable electromagnetic performances suitable for X-band applications.

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来源期刊

International Journal of Numerical Modelling-Electronic Networks Devices and Fields 工程技术-工程：电子与电气

CiteScore

4.60

自引率

6.20%

发文量

101

审稿时长

>12 weeks

期刊介绍： Prediction through modelling forms the basis of engineering design. The computational power at the fingertips of the professional engineer is increasing enormously and techniques for computer simulation are changing rapidly. Engineers need models which relate to their design area and which are adaptable to new design concepts. They also need efficient and friendly ways of presenting, viewing and transmitting the data associated with their models. The International Journal of Numerical Modelling: Electronic Networks, Devices and Fields provides a communication vehicle for numerical modelling methods and data preparation methods associated with electrical and electronic circuits and fields. It concentrates on numerical modelling rather than abstract numerical mathematics. Contributions on numerical modelling will cover the entire subject of electrical and electronic engineering. They will range from electrical distribution networks to integrated circuits on VLSI design, and from static electric and magnetic fields through microwaves to optical design. They will also include the use of electrical networks as a modelling medium.