SAR in PIFA handset antenna designs: an overall system perspective

Author

Li, Zhan ; Rahmat-Samii, Yabya

Author_Institution

Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA

fYear

2005

fDate

3-8 July 2005

Firstpage

784

Abstract

This paper discusses the specific absorption rate (SAR) issue in handset antenna designs from the system level. Four planar inverted F antenna (PIFA) models were designed for the personal communication system (PCS) frequency band (1850 ∼ 1990 MHz, also referred to as the 1900 MHz band). The free-space and against-the-head antenna efficiencies are measured and analyzed. The measured SAR were normalized by adjusting the transmit (TX) power. Then the antenna efficiencies were combined together to obtain the total radiated power (TRP), which is one of the requirements to evaluate the current handset antenna performance.

Keywords

UHF antennas; UHF radio propagation; biological effects of radiation; electromagnetic wave absorption; mobile antennas; mobile handsets; personal communication networks; planar inverted-F antennas; 1850 to 1990 MHz; PCS; PIFA handset antenna; SAR; against-the-head antenna efficiencies; free-space efficiencies; personal communication system; planar inverted F antenna; specific absorption rate; total radiated power; transmit power; Antenna measurements; Electromagnetic measurements; Electromagnetic radiation; FCC; Frequency; Imaging phantoms; Power measurement; Specific absorption rate; Telephone sets; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1552134

Filename

1552134