Title :
Study of SAR reduction with split ring resonators
Author :
Hwang, Jiunn-Nan ; Chen, Fu-Chiarng
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
In this paper, we use the split ring resonators (SRR) to reduce the EM interaction between a dipole antenna and a muscle cube. By properly choosing the geometric parameters of SRR, the permeability can be negative at 900MHz and 1.8GHz. It is found that the specific absorption rate (SAR) in the muscle cube can be reduced by placing the designed SRR between the dipole antenna and the muscle cube. The performance of the antenna with SRR is also studied. Numerical results are demonstrated to validate the effect of SAR reduction.
Keywords :
UHF radio propagation; biological effects of radiation; cellular radio; dipole antennas; electromagnetic wave absorption; magnetic permeability; metamaterials; muscle; resonators; 1.8 GHz; 900 MHz; EM interaction; SAR reduction; dipole antenna; geometric parameters; muscle cube; negative permeability; specific absorption rate; split ring resonators; Cellular phones; Dipole antennas; Geometry; Humans; Magnetic heads; Magnetic materials; Muscles; Optical ring resonators; Permeability; Safety;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552133
