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Architecture of left-handed metamaterial absorber for absorbing electromagnetic hazards

M.R.I.FARUQUE1,* , M. RAHMAN2, M.M. HASAN1, A. M. TAMIM1, I. N. IDRUS1, M.T.ISLAM3

Affiliation

  1. Space Science Centre (ANGKASA), Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
  2. Department of Electronics and Communication Discipline, Khulna University, Khulna, Bangladesh
  3. Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia

Abstract

At present because of extensive space and environmental radiation research, we have a much better understanding of our space and earth environment, its effects, and the best ways to protect the human life. Besides, with the increase in the environmental issues caused by traditional resources, renewable energy has attracted worldwide attention nowadays by suppression of unwanted radiation produced by devices in space/climate. An electric-inductive-capacitive resonatorthat are capable of not only suppression of unwanted microwave radiation but also channelling almost all the absorbed power to a resistive load was discussed in this paper. The proposed absorber structure shows a wide bandwidth of 4.66 GHz, whereas the size of every unit cell was 10×10 mm2and total array slab was 150×200 mm2. Finite integration technique (FIT) based CST Microwave Studio was used for design and analyses purpose. The measured result shows resonance in 4.16 GHz (C-band), 8.18 GHz (X-band), 12.03 GHz (Ku-band), 16.61 GHz (Ku-band) and the effective medium ratio is 7.21. However, the absorption of the proposed metamaterial absorber at 2.06, 5.05, 9.26, and 13.23 GHz were respectively, 60%, 95%, 78%, and 93%.

Keywords

Absorption, Electromagnetic hazards,Left-handedmetamaterial, Renewable energy.

Submitted at: April 7, 2019
Accepted at: Oct. 22, 2020

Citation

M.R.I.FARUQUE, M. RAHMAN, M.M. HASAN, A. M. TAMIM, I. N. IDRUS, M.T.ISLAM, Architecture of left-handed metamaterial absorber for absorbing electromagnetic hazards, Journal of Optoelectronics and Advanced Materials Vol. 22, Iss. 9-10, pp. 495-500 (2020)