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All Journal Indonesian Journal of Electrical Engineering and Computer Science
Mohd Hafizuddin Mat
Universiti Malaysia Perlis (UniMAP)

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Designing cantilever dimension for low power wireless applications Md Rabiul Awal; Muzammil Jusoh; R. Badlishah Ahmad; Thennarasan Sabapathy; M. Najib M. Yasin; Mohd Hafizuddin Mat
Indonesian Journal of Electrical Engineering and Computer Science Vol 14, No 2: May 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v14.i2.pp758-764

Abstract

This paper presents the effect of cantilever width on the displacement pattern for low power acoustic energy propagation. A single layer cantilever configuration is used to design the harvester with Lead Zirconate Titanate (PZT-5H). The device is designed with 10×(1 to 10)×0.62 mm dimension. The displacements of the cantilever are obtained through the simulation analysis. The maximum displacements are found of 9.80E-28 mm with the smallest width while minimum displacement is found from 5 mm width. From the results, it is obvious that, smaller width can result larger displacements, however, rectangular and square cantilever shape can be advantageous for low power applications.
A Study of specific absorption rate in human head due to electromagnetic exposure to 4G signals Siti Rokiah Abdul Mutalik; Mohd Hafizuddin Mat; Muzammil Jusoh; A. W. N. Husna
Indonesian Journal of Electrical Engineering and Computer Science Vol 13, No 3: March 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v13.i3.pp1161-1166

Abstract

This paper presents a numerical analysis of the specific absorption rate in SAM phantom exposed to electromagnetic field. A two set dipole antenna operating with 1800MHz and 2600MHz were placed parallel to the z-axis and rotated in clockwise from 0o (vertical) to 180o in steps of 30o to investigate the effect of frequency and polarization. The maximum average of 1gram and 10gram of tissue have been presented to show the effect of SAR in SAM phantom model. A comparison of the mass average SAR in head shows the 1g of SAR at 2600MHz is double to 1800MHz frequency. While for 10g of SAR, slightly different for both 1800MHz and 2600MHz.
Co-Authors A. W. N. Husna M. Najib M. Yasin Md Rabiul Awal Muzammil Jusoh R. Badlishah Ahmad Siti Rokiah Abdul Mutalik Thennarasan Sabapathy