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year 27, Issue 1 (Iranian Nano-Photonic Conference 2020 2020)
ICOP & ICPET _ INPC _ ICOFS 2020, 27(1): 97-99 |
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Shabani M. Design of an ultra-broadband THz metamaterial absorber based on micro-strip resonators. ICOP & ICPET _ INPC _ ICOFS 2020; 27 (1) :97-99
URL: http://opsi.ir/article-1-2265-en.html
URL: http://opsi.ir/article-1-2265-en.html
Dept. of Electronics, Faculty of electrical and computer engineering, Tabriz University, Tabriz, Iran
Abstract: (941 Views)
Abstract- In this article, a new structure of ultra-broadband absorber has been introduced by adding an insulator layer on two stacked layers of the microstrip resonators made of chromium. This structure is simulated by finite element method (FEM) and it has been shown that the relative bandwidth of the structure exceeds 150 percent for 90 percent absorption by using only two layers of resonators. Its bandwidth is equal to 2.6 THz and covers the frequency range between 0.43 to 3.03 THz. The absorption of this structure for both TE and TM polarization is insensitive to the incident angle between 0 to 60 degrees and always is more than 80 percent. besides, the insensitivity of the structure to the misalignment between layers up to 45 µm facilitates its fabrication.
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