Citation
Yp. Zhang et al., Excitation of UHF radio waves in tunnels, MICROW OPT, 22(6), 1999, pp. 408-410
Citations number
12
Categorie Soggetti
Optics & Acoustics
Journal title
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
ISSN journal
08952477
→ ACNP
Volume
22
Issue
6
Year of publication
1999
Pages
408 - 410
Database
ISI
SICI code
0895-2477(19990920)22:6<408:EOURWI>2.0.ZU;2-L
Abstract
This letter deals with the excitation of UHF radio wares in tunnels. It is
found that the antenna position and the antenna gain are two major factors
that affect the excitation of radio waves in tunnels. The antenna in the mi
ddle position and with high gain is preferable. Furthermore, the enhancemen
t of the radio signal levels in the NLOS region of the tunnel by a passive
reflector is simulated. (C) 1999 John Wiley & Sons, Inc.