CHENG Lingfei, JIAO Xiaolong, ZHANG Weijing. Influence of antenna position on division point of electromagnetic waves propagation in rectangular tunnel[J]. 2020, (1): 22-25.
CHENG Lingfei, JIAO Xiaolong, ZHANG Weijing. Influence of antenna position on division point of electromagnetic waves propagation in rectangular tunnel[J]. 2020, (1): 22-25. DOI: 10.13873/J.1000-9787(2020)01-0022-04.
In order to describe accurately the propagation characteristics of electromagnetic waves in rectangular tunnel
the division point formulas of different antenna positions in rectangular tunnel are deduced according to the propagation theory and geometry knowledge
and the results of different antenna positions are verified by experiments. It is concluded that in a typical rectangular tunnel with the width larger than the height
the division point distance is mainly changed by the height of the antenna
and is less affected by the lateral distance. It is feasible to use the proposed method of this paper to determine the division point of electromagnetic wave propagation in tunnels.