Ray tracing analysis of propagation characteristics in tunnels including transmitting antenna

Kazuhiro Fujimori, Hiroyuki Arai

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

From a theoretical point of view, tunnels may be regarded as oversized lossy waveguides and field distributions inside them are calculated by the waveguide theory. However, it is difficult to include the radiation pattern to investigate a near region of a source. In this study, the field distributions inside tunnels including a source were investigated using the ray-tracing method. In the calculation, it was found that the optimal antenna pattern to increase the coverage area is nearly sin3θ when the beam width is changed and the beam direction is directed along the guide.

Original languageEnglish
Pages (from-to)1222-1225
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume2
Publication statusPublished - Jan 1 1996
Externally publishedYes
EventProceedings of the 1996 AP-S International Symposium & URSI Radio Science Meeting. Part 1 (of 3) - Baltimore, MD, USA
Duration: Jul 21 1996Jul 26 1996

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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