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 language | English |
|---|---|
| Title of host publication | IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) |
| Publisher | IEEE |
| Pages | 1222-1225 |
| Number of pages | 4 |
| Volume | 2 |
| Publication status | Published - 1996 |
| Externally published | Yes |
| Event | Proceedings of the 1996 AP-S International Symposium & URSI Radio Science Meeting. Part 1 (of 3) - Baltimore, MD, USA Duration: Jul 21 1996 → Jul 26 1996 |
Other
| Other | Proceedings of the 1996 AP-S International Symposium & URSI Radio Science Meeting. Part 1 (of 3) |
|---|---|
| City | Baltimore, MD, USA |
| Period | 7/21/96 → 7/26/96 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Ray tracing analysis of propagation characteristics in tunnels including transmitting antenna. / Fujimori, Kazuhiro; Arai, Hiroyuki.
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest). Vol. 2 IEEE, 1996. p. 1222-1225.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Ray tracing analysis of propagation characteristics in tunnels including transmitting antenna
AU - Fujimori, Kazuhiro
AU - Arai, Hiroyuki
PY - 1996
Y1 - 1996
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0029746408&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029746408&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0029746408
VL - 2
SP - 1222
EP - 1225
BT - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
PB - IEEE
ER -