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

Volume

46

Issue

3

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

537

Lastpage

543

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;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.618178

Filename

618178