Effect of antenna on propagation characteristics of electromagnetic waves in tunnel environments

Author

Huo, Yu ; Xu, Zhao ; Zheng, Hong-dang ; Zhou, Xing

Author_Institution

Sch. of Inf. & Electr. Eng., China Univ. of Min. & Technol., Xuzhou, China

fYear

2009

fDate

19-21 Jan. 2009

Firstpage

268

Lastpage

271

Abstract

The optimal radiation pattern and optimal position of the source antenna installed inside a tunnel is the concern of this paper. By comparing theoretical and experimental results, it is shown that the field distribution of the electromagnetic wave in tunnel environments is sensitive to the position of the transmitting antenna in the cross section of a tunnel. And compared with the omni-directional antenna, the utilization of the vertical antenna with radiation pattern of sinⁿ Â¿ on the upper middle of the wall, or the horizontal antenna with radiation pattern of sinⁿ Â¿ on the middle of the side wall, could represent significant improvement of the standing wave graphics, as well as the propagation attenuation.

Keywords

antenna radiation patterns; electromagnetic wave propagation; transmitting antennas; tunnels; antenna cross section; antenna optimal position; antenna optimal radiation pattern; antenna propagation characteristics; electromagnetic wave field distribution; electromagnetic wave propagation; omnidirectional antenna; propagation attenuation; standing wave graphics; transmitting antenna; tunnel environment; vertical antenna; Antenna radiation patterns; Antenna theory; Antennas and propagation; Electromagnetic propagation; Electromagnetic scattering; Optical attenuators; Optical propagation; Receiving antennas; Solid modeling; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Microelectronics & Electronics, 2009. PrimeAsia 2009. Asia Pacific Conference on Postgraduate Research in

Conference_Location

Shanghai

Print_ISBN

978-1-4244-4668-1

Electronic_ISBN

978-1-4244-4669-8

Type

conf

DOI

10.1109/PRIMEASIA.2009.5397396

Filename

5397396