Multi bands metamaterial absorber optimized by genetic algorithm in microwave regime

Hameed, Moayed H.; Shawkat‎‎, Shihab A.; Al-Badri, Khalid Saeed Lateef

doi:10.1063/5.0000075

Cited by 9 publications

(1 citation statement)

References 26 publications

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“…In the following years, many studies were carried out on this subject. Today, metamaterial has a wide range of applications such as medical (Smith et al 2004), imaging (Papaioannou et al 2017), signal absorption (Shawkat et al 2020;Al-badri 2020), invisibility cloak (Kanté et al 2009; Al-Badri 2019), absorption tuning (Hameed et al 2020;Ekmekci et al 2016), antenna (Luo et al 2019), sensor (Abdulkarim et al 2020;Ksl et al 2018), etc. However, metamaterial with the extra-electromagnetic properties of materials provides an increase in electromagnetic applications (Sabah et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Design of A Perfect Metamaterial Absorber for Microwave Applications

Al-Badri¹

2021

BAS-SJKFU

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In this manuscript, a multi-band and low-profile metamaterial absorber with polarisation independence from 00 to 450 is presented. The proposed metamaterial structure is composed of a single ring with a rectangular patch, consisting of periodic unit cells with a size of 150mm × 250mm × 1.5mm. The structure exhibits three absorption peaks under normal incidence, which cover the X-band. According to the results, the desired material can excellently absorb the electromagnetic wave signal, with an outstanding absorption rate of about 95% at the microwave x-band frequency. The proposed structure shows three absorption bands where two of them exceed 90% absorption level. The results displayed a high Q-factor of 103.5 at a resonance frequency of 8.58 GHz and the figure of merit (FOM) is 98.4, which can be used to enhance the sensor sensing, narrowband band filter and image sensing. The proposed structure is fabricated, and experiments are carried out to validate the design principle. Strong agreements are observed between the measured and the corresponding simulated results.

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