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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/13006

Title: A new low sar antenna structure for wireless handset applications
Authors: Kusuma, A.H. ,
Sheta, A.-F
Elshafiey, I
Siddiqui, Z.
Alkanhal, M.A.
Aldosari, S.
Alshebeili, S.A.
Mahmoud, S.F
Issue Date: 2011
Citation: Progress in Electromagnetics Research Volume 112, 2011, Pages 23-40
Abstract: This paper proposes a new mobile handset antenna structure to reduce the value of the specific absorption rate (SAR). The antenna is based on the PIFA structure and operates at dual-bands of 0.9 GHz and 1.8 GHz. The chassis current is reduced using a metallic shim-layer inserted between the patch and chassis. This shim-layer is connected to the handset chassis through posts whose number and positions are determined using optimization techniques. Sidewalls are attached to increase the gain of the antenna and reduce the radiation towards human head. Simulations in the cheek mode show that the SAR reduction factor (SRF) of the proposed structure averaged over 10-g is more than 75% at 0.9 GHz and 46% at 1.8 GHz. The SRF values obtained using simulations and measurements are found to be better than 51% and 76% at 0.9 GHz and 1.8 GHz, respectively.
URI: http://hdl.handle.net/123456789/13006
ISSN: 10704698
Appears in Collections:College of Engineering

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