Analysis of the effects of metamaterials on the radio-frequency electromagnetic fields in the human head and hand

Mohammad Rashed Iqbal Faruque, Mohammad Tariqul Islam, Nik Abdullah Nik Mohamed, Baharudin Yatim, Mohd Alauddin Mohd Ali

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The development of split-ring resonators (SRRs) consisting of two concentric square rings of a conductive material exhibiting a resounding electric response at a microwave frequency is described in this paper. Each square ring has a gap and is oppositely placed in the gap of the other ring. A size reduction is always possible in this kind of structure, but one should be careful about the set frequency. The described square type of metamaterial design is completely novel in the context of the head and hand with respect to the specific absorption-reduction rate (SAR). This design was used because more arrays can be placed within a given area. Mobile phones are relatively small, requiring small metamaterial designs. The finite-difference time-domain method with the lossy-Drude model is adopted in this analysis by using CST Microwave Studio®. The technique of a SAR reduction is discussed, and the effects of the relating position, distance, and size of the square metamaterials on the SAR reduction were investigated. Using the square-type metamaterials, we have achieved a 53.03 % reduction of the initial SAR value for the case of 1 g SAR and a 68.08 % reduction for the case of 10 g SAR.

Original languageEnglish
Pages (from-to)129-133
Number of pages5
JournalMateriali in Tehnologije
Volume47
Issue number1
Publication statusPublished - 2013

Fingerprint

Metamaterials
Electromagnetic fields
Conductive materials
Finite difference time domain method
Microwave frequencies
Studios
Mobile phones
Resonators
Microwaves

Keywords

  • Antenna
  • Head model
  • SAR
  • SRRs

ASJC Scopus subject areas

  • Metals and Alloys
  • Polymers and Plastics

Cite this

Analysis of the effects of metamaterials on the radio-frequency electromagnetic fields in the human head and hand. / Faruque, Mohammad Rashed Iqbal; Islam, Mohammad Tariqul; Mohamed, Nik Abdullah Nik; Yatim, Baharudin; Ali, Mohd Alauddin Mohd.

In: Materiali in Tehnologije, Vol. 47, No. 1, 2013, p. 129-133.

Research output: Contribution to journalArticle

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