Abstract
this article, a multi-band polarization-insensitive metamaterial absorber is designed for THz imaging and EMI shielding. A unique oval-shaped structure with three circular ring-shaped resonators is proposed with a unit cell dimension of36×36×19.6μm3. The absorbance of the proposed multiband MMA is 98.57%, 90%and 99.85% at 5.58, 7.98-8.84, 11.45THz frequency respectively. Return loss is nearly the same for the changing incident and polarization angle. Therefore, this metamaterial absorber with a wide range of polarization insensitivity is found and it is also suitable for quantum RADAR Imaging, energy harvesting, and optoelectronic devices.
Highlights
INTRODUCTIONDESIGN OF MMA STRUCTURE practical applications such as sensing, cloaking, stealth or The proposed metamaterial absorber comprises two oval absorber, and communication [1,2,3,4,5]
In recent progresses, metamaterials have entered in various II
RESULTS & DISCUSSION The proposed triple-band MMA is simulated with unit cell boundary condition on the x-y axis and incident wave on the zaxis to generate a return loss curve as shown in Figure 5 (a)
Summary
DESIGN OF MMA STRUCTURE practical applications such as sensing, cloaking, stealth or The proposed metamaterial absorber comprises two oval absorber, and communication [1,2,3,4,5].
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