Title :
Antenna-gain measurement of handheld terminals at 900 MHz
Author :
Arai, Hiroyuki ; Igi, Nobuhiro ; Hanaoka, Hirokazu
Author_Institution :
Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
fDate :
8/1/1997 12:00:00 AM
Abstract :
This paper presents antenna-gain measurements of handheld terminals by the random-field measurement (RFM) method. We have measured the relative antenna gain for different-sized terminal boxes in indoor and outdoor environments to show a gain decrease caused by the box size. The measured results are explained by calculating the average gain of the horizontal radiation pattern. To find the effect by a different human carrier, we also measured the antenna gain for several parameters, such as weight, height, head parameters, and the antenna protruding length from the head. We present a correlation factor of the antenna-gain deviation due to different human carriers
Keywords :
UHF measurement; antenna radiation patterns; antenna testing; gain measurement; indoor radio; mobile antennas; mobile radio; 900 MHz; UHF; antenna gain deviation; antenna gain measurement; antenna protruding length; average gain; correlation factor; handheld terminals; head parameters; height; horizontal radiation pattern; human carrier; indoor environment; mobile antenna; outdoor environment; quarter wavelength whip antenna; random field measurement method; terminal boxes; weight; Antenna measurements; Antenna radiation patterns; Antennas and propagation; Anthropometry; Biological system modeling; Gain measurement; Humans; Length measurement; Size measurement; Testing;
Journal_Title :
Vehicular Technology, IEEE Transactions on
