Faculty of Science and Engineering
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Item Incident Angle Insensitive Eye Shaped Metamaterial Absorber For Multiband Applications(Department of Electronic and Telecommunication Engineering, 2024-02) Faruk, OmarIn the microwave frequency domain, I introduce a simple design aimed at designing a multiband polarization-insensitive MA. Polarization-insensitive MA are currently highly appealing owing to their distinctive absorption characteristics across various polarization angles. This design involves imprinting a specific structure onto a metal-backed dielectric substrate Fr-4, which comprises an eye-shaped labyrinth structure. Upon conducting a series of diverse analyses at an angle of incidence perpendicular to the surface, it has been determined that the proposed arrangement exhibits significant levels of absorption, reaching 94.93% at frequencies of 5.76 GHz, 97.73% at frequencies of 7.432 GHz, 95.89% at frequencies of 10.644 GHz, 98.28% at frequencies of 13.813 GHz, 93.18% at frequencies of 19.048 GHz, 98.72% at frequencies of 21.006 GHz, 99.9% at frequencies of 22.856 GHz, 91.85% at frequencies of 23.756 GHz, and 99.15% at frequencies of 24.746 GHz. To gain deeper insights into the absorption mechanism intrinsic to this design, provide visualizations of surface current distributions.Item Incident Angle Insensitive Eye Shaped Metamaterial Absorber For Multiband Applications(International Islamic University Chittagong, 2024-02) Faruk, OmarIn the microwave frequency domain, I introduce a simple design aimed at designing a multi-band polarization-insensitive MA. Polarization-insensitive MA are currently highly appealing owing to their distinctive absorption characteristics across various polarization angles. This design involves imprinting a specific structure onto a metal-backed dielectric substrate Fr-4, which comprises an eye-shaped labyrinth structure. Upon conducting a series of diverse analyses at an angle of incidence perpendicular to the surface, it has been determined that the proposed arrangement exhibits significant levels of absorption, reaching 94.93% at frequencies of 5.76 GHz, 97.73% at frequencies of 7.432 GHz, 95.89% at frequencies of 10.644 GHz, 98.28% at frequencies of 13.813 GHz, 93.18% at frequencies of 19.048 GHz, 98.72% at frequencies of 21.006 GHz, 99.9% at frequencies of 22.856 GHz, 91.85% at frequencies of 23.756 GHz, and 99.15% at frequencies of 24.746 GHz. To gain deeper insights into the absorption mechanism intrinsic to this design, provide visualizations of surface current distributions.