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Low SAR reconfigurable multiband planar inverted-F antenna for wireless communication applications

Published online by Cambridge University Press:  24 April 2014

Ahmed M. Soliman ,
Dalia M. Elsheakh  and
Esmat A. Abdallah
Ahmed M. Soliman
Affiliation:
Microstrip Department, Electronics Research Institute, Giza, Egypt. Phone: +201118976695
Dalia M. Elsheakh*
Affiliation:
Microstrip Department, Electronics Research Institute, Giza, Egypt. Phone: +201118976695
Esmat A. Abdallah
Affiliation:
Microstrip Department, Electronics Research Institute, Giza, Egypt. Phone: +201118976695
*
Corresponding author: D.M. Elsheakh Email: daliaelsheakh@gmail.com
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Abstract

A low specific absorption rate (SAR) reconfigurable multiband coplanar waveguide fed planar inverted-F antenna (PIFA) is presented in this paper. Different numbers of meander-turn-shaped slots are etched on the PIFA radiating plate to excite new resonant frequencies. Extra resonant frequencies are created by increasing the number of meander-turn-shaped slots for different wireless communication applications. A new independent resonant frequency is created by etching a coupled slot within the ground plane for the upper WLAN. A PIN diode switch is used to reconfigure the fundamental resonant frequency from the LTE band 11 to band 8 with a total of 63% size reduction compared with the original PIFA size. Furthermore, the SAR in the human head is investigated using the Hugo voxel model in CST Microwave Studio. The volume of the antenna is 22 × 30 mm2 over a 35 × 50 mm2 ground plane, which is suitable for handheld devices.

Keywords

Planar inverted-F antenna (PIFA)Coplanar waveguide (CPW)MultibandWireless communication applicationsPIN diodeReconfigurableSAR
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 7 , Issue 2 , April 2015 , pp. 185 - 194
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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