SAR Calculations of Novel Dual-band PIFA for Mobile Phone Applications
Rasha Ali
Department of Electronics and Communication Engineering, Faculty of Engineering, University of Zagazig, Egypt.
M. I. Ahmed *
Department of Microstrip, Electronics Research Institute, Giza, Egypt.
Walid S. El-Deeb
Department of Electronics and Communication Engineering, Faculty of Engineering, University of Zagazig, Egypt.
A. A. Shaalan
Department of Electronics and Computer Engineering, Faculty of Engineering, Delta University of Science and Technology, Egypt.
*Author to whom correspondence should be addressed.
Abstract
Aims: The objective of this paper is to design a new PIFA for cell phone applications with low SAR.
Study Design: The designed PIFA antenna involves a patch with slots on the upper side of first substance layer FR-4, shorting wall, and a ground plane in the bottom side of second substance layer FR-4 and exciting (feeding port).
Place and Duration of Study: Department of Electronics and Communication Engineering, Faculty of Engineering, University of Zagazig. Between December 2017 to March 2019.
Methodology: it will be utilized SAM head model and a hand phantom as a user’s head and hand. Time-domain solver considers hexahedral mesh with adaptive meshing scheme used in this simulation.
Results: The simulation result has been obtained using MWS CST tools which constructed on the finite integration technique. And the measurement results are accomplished with vector analyzer ZVA 67. The simulated and the investigational results are the same approximately.
Conclusion: The antenna provides high gain for both frequency bands (900MHZ and 1800MHZ) with approximately 90% radiation efficiency. Moreover, The SAR analysis of the suggested antenna clearly demonstrates little SAR characteristics suitable for human usage competed with the standards of the safe SAR values.
Keywords: Planar inverted-F Antenna (PIFA);, numerical specific anthropomorphic mannequin (SAM), electromagnetic (EM) and specific absorption rate (SAR).