Title :
Prediction of head proximity effect on antenna impedance using spherical wave expansions
Author :
Sadeghzadeh, Ramazan Ali ; McEwan, Neil J.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bradford Univ.
fDate :
8/18/1994 12:00:00 AM
Abstract :
It is shown that, by approximating a human head as a dielectric sphere, the method of spherical wave expansions can be used to obtain useful predictions of the effect of the head on the impedance of an adjacent handset antenna working at ~2 GHz
Keywords :
antenna theory; dipole antennas; electric impedance; microwave antennas; 2 GHz; UHF; adjacent handset antenna; antenna impedance; dielectric sphere; half wave dipole; head proximity effect prediction; spherical wave expansions;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940943
