Title :
SAR reduction of implanted planar inverted F antennas with non-uniform width radiator
Author :
Kim, Jaehoon ; Rahmat-Samii, Yahya
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA
Abstract :
In this paper, the radiation mechanism of an implanted planar inverted F antenna (PIFA) is studied to improve radiation performances of PIFA in a human body by changing the width of the planar radiators. The PIFA is designed to operate at the medical implant communications service (MICS) frequency band (402-405 MHz). The numerical computational procedures (Annex E of Std. C95.3-2002) recommended by IEEE are applied to calculate spatial-average specific absorption rate (SAR) for the implanted antennas located in a biological tissue model. An experimental setup is used to measure the impedance matching characteristics of the implanted antenna
Keywords :
IEEE standards; antenna accessories; biological tissues; biomedical communication; dosimetry; electromagnetic wave absorption; impedance matching; planar inverted-F antennas; prosthetics; 402 to 405 MHz; IEEE; PIFA; biological tissue model; impedance matching characteristics; implanted planar inverted F antennas; medical implant communications service frequency band; nonuniform width radiator; planar radiators; radiation mechanism; spatial-average specific absorption rate; specific absorption rate reduction; Antenna measurements; Biological system modeling; Biological tissues; Biology computing; Frequency; Humans; Impedance measurement; Implants; Microwave integrated circuits; Specific absorption rate;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1710725
