Title :
Investigating the effect of smart antenna on SAR
Author :
Chim, Kwok-Chi ; Murch, Ross D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
The effect of smart antennas on SAR at 1.9 GHz is investigated. We emulate the operation of the smart antennas by applying different signal weights (both phase and magnitude) to a mobile telephone prototype configured with two PIFA antennas. The SAR of this prototype is simulated using FDTD. It is found that the operation of smart antennas on SAR will have a significant impact, with SAR changing by ±3dB for varying signal or feed weights.
Keywords :
adaptive antenna arrays; biological effects of radiation; dosimetry; electromagnetic wave absorption; finite difference time-domain analysis; mobile handsets; planar antenna arrays; 1.9 GHz; FDTD; PIFA antennas; SAR; feed weights; mobile telephone prototype; planar inverted F antennas; signal weights; smart antennas; specific absorption rate; Antenna feeds; Electromagnetic radiation; Finite difference methods; Humans; MIMO; Mobile antennas; Mutual coupling; Prototypes; Time domain analysis; Wireless communication;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016339
