Radio propagation characteristics in underground streets crowded with pedestrians

Author

Yamaguchi, Yoshio ; Abe, Takeo ; Sekiguchi, Toshio

Author_Institution

Dept. of Inf. Eng., Niigata Univ., Japan

Volume

30

Issue

2

fYear

1988

fDate

5/1/1988 12:00:00 AM

Firstpage

130

Lastpage

136

Abstract

Radio propagation characteristics in an underground street crowded with pedestrians are presented. Measurements were carried out on vertical and horizontal polarization characteristics in a frequency range from 250 MHz to 12.4 GHz. In the analysis, the region with pedestrians is modeled as a lossy, homogeneous dielectric slab. Based on the method of effective dielectric constant, some numerical results are presented for the attenuation constant and for the field distribution in the cross section and are compared with experimental data. It is shown that the method is applicable in determining the propagation characteristics in underground streets crowded with pedestrians

Keywords

electromagnetic wave polarisation; field strength measurement; radiowave propagation; 0.25 to 12.4 GHz; attenuation constant; field distribution; field strength measurement; homogeneous dielectric slab; horizontal polarization characteristics; lossy dielectric slab; method of effective dielectric constant; pedestrians; radiowave propagation; underground streets; vertical polarisation; Attenuation; Dielectric constant; Dielectric losses; Frequency measurement; Polarization; Radio propagation; Scattering; Slabs; UHF measurements; Vehicles;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.2398

Filename

2398