A Study of the Electromagnetic Coupling Between Handset Mounted Antennas and a Human Operator

Author

Rahmat-samii, Yahya ; Jensen, Michael A.

Author_Institution

Department of Electrical Engineering, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90024-1594

Volume

1

fYear

1994

fDate

5-9 Sept. 1994

Firstpage

607

Lastpage

612

Abstract

In the design of antennas for use with hand-held transceiver devices, the electromagnetic interaction between the antenna and the nearby biological tissue is a key factor which must be considered before a design is finalized. This paper presents an investigation of this antenna-tissue interaction using the finite-difference time-domain (FDTD) electromagnetic simulation approach. Accurate models of antennas on a handset are coupled with detailed models of the human head and hand to provide input impedance, radiation pattern, gain, and specific absorption rate (SAR) data for different antenna configurations. Antenna structures such as the monopole, side-mounted planar inverted F antenna (PIFA), and back-mounted PIFA are selected as representative examples of external and internal type radiators. Experimental results are provided which support the theoretically obtained conclusions.

Keywords

Biological system modeling; Biological tissues; Electromagnetic coupling; Electromagnetic devices; Electromagnetic radiation; Finite difference methods; Humans; Telephone sets; Time domain analysis; Transceivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1994. 24th European

Conference_Location

Cannes, France

Type

conf

DOI

10.1109/EUMA.1994.337277

Filename

4138322