Inverted-F Antenna with modified current distribution for SAR reduction

A design technique of Inverted-F Antenna (IFA) that can be easily applied to conventional antenna is presented for the Specific Absorption Rate (SAR) reduction. The proposed IFA has the characteristic of reducing only the effect of electromagnetic wave absorbed by the human body while maintaining go...

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Bibliographic Details
Published in2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT) pp. 36 - 39
Main Authors Woo Cheol Choi, Ki Joon Kim, Young Joong Yoon, Jeung Uk Ha
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2014
Subjects
Current distribution
current-slope discontinuity
Electromagnetic scattering
inverted-F antenna
Mobile antennas
mobile application
Mobile communication
Phantoms
SAR
Specific absorption rate
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Summary:A design technique of Inverted-F Antenna (IFA) that can be easily applied to conventional antenna is presented for the Specific Absorption Rate (SAR) reduction. The proposed IFA has the characteristic of reducing only the effect of electromagnetic wave absorbed by the human body while maintaining good radiation performance compared to conventional IFA. The proposed IFA operates at 1.7 GHz, allocated in the GSM frequency band, and the solid phantom is used to evaluate the electromagnetic wave absorbed in the human body as an equivalent model of the human body. The size of proposed IFA is 90 mm × 50 mm including the size of the FR4 substrate whose thickness is 0.6 mm. The simulations are performed for analyzing the relationship between the distributed-current characteristic and SAR. The SAR 1g value obtained by proposed IFA decreases about 11 % compared to the conventional IFA.
ISBN:9781479923311
1479923311
DOI:10.1109/IWAT.2014.6958589