Design, synthesis, characterization and performance evaluation of multi-band perfect metamaterial absorber

2015 ◽  
Vol 29 (18) ◽  
pp. 2479-2491 ◽  
Author(s):  
Himangshu Bhusan Baskey ◽  
M. Jaleel Akhtar ◽  
A.K. Dixit ◽  
T.C. Shami
2019 ◽  
Vol 131 ◽  
pp. 50-57 ◽  
Author(s):  
Tong An ◽  
Zhixiang Liu ◽  
Zhiqiang Zhang ◽  
Jia Zhou ◽  
Mingming Wang ◽  
...  

2016 ◽  
Vol 30 (08) ◽  
pp. 1650095 ◽  
Author(s):  
Furkan Dincer ◽  
Muharrem Karaaslan ◽  
Sule Colak ◽  
Erkan Tetik ◽  
Oguzhan Akgol ◽  
...  

A multi-band perfect metamaterial absorber (MA) based on a cylindrical waveguide with polarization independency is numerically presented and investigated in detail. The proposed absorber has a very simple configuration, and it operates at flexible frequency ranges within the microwave frequency regime by simply tuning the dimensions of the structure. The maximum absorption values are obtained as 99.9%, 97.5%, 85.8%, 68.2% and 40.2% at the frequencies of 1.34 GHz, 2.15 GHz, 3.2 GHz, 4.31 GHz and 5.41 GHz, respectively. The numerical studies verify that the proposed model can provide multi-band perfect absorptions at wide polarization and incident angles due to its rotational symmetry feature. We have also realized sensor and parametric study applications in order to show additional features of the suggested model. The suggested MA enables myriad potential applications in medical technologies, sensors and in defense industry etc.


2019 ◽  
Vol 11 (1) ◽  
pp. 133-144 ◽  
Author(s):  
Khalid Saeed Lateef Al-badri

Purpose – This paper presents a simulation study using CST microwave studio computer software. Methodology/approach/design – A simple structure based on metamaterial are used to construct a perfect metamaterial absorber. It is made of just one uncompleted square patch copper placed on top of dielectric layer to separate it from a copper ground plate. Findings – This design provides four perfect absorption regions with absorption peaks of an average of 93%. The characteristic study of parameters such as copper dimensions and dielectric properties led to an expected result in the synthesis of resonant frequency. Practical implications – The multi-band absorption can be used in energy harvesting applications, protection from the effects of electromagnetic waves, radar stealth technology and thermal imaging. Moreover, the experimental results show good agreement with CST simulation.


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