Peak SAR reduction in human head for handset applications with resistive sheets (R-cards)

Author

Chou, H.-H. ; Hsu, H.-T. ; Chou, H.T. ; Tuan, S.-C. ; Liu, K.-H. ; Kuo, F.-Y.

Author_Institution

Dept. of Commun. Eng., Yuan Ze Univ., Chungli, Taiwan

fYear

2010

fDate

11-17 July 2010

Firstpage

1

Lastpage

4

Abstract

The reduction in peak SAR for handset with monopole type antenna using Rcard is investigated numerically and experimentally. Numerical results suggest that implementation of R-card with low impedance levels in a sense to cover the antenna feed can effectively reduce the peak SAR values in the human head for both 1g and 10g cases. Such observation has been validated experimentally, and a peak SAR reduction of over 60% has been achieved in real measurement. In addition, such approach has very little impact on the antenna performance while maintaining the advantage of easy implementation.

Keywords

antenna feeds; biological effects of radiation; electromagnetic wave absorption; mobile handsets; monopole antennas; R-card; antenna feed; handset application; human head; monopole type antenna; peak SAR reduction; resistive sheet; specific absorption rate; Antennas; Humans; Impedance; Integrated circuit modeling; Numerical models; Phantoms; Telephone sets;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE

Conference_Location

Toronto, ON

ISSN

1522-3965

Print_ISBN

978-1-4244-4967-5

Type

conf

DOI

10.1109/APS.2010.5561153

Filename

5561153