Title :
Radiocommunication in tunnels
Author_Institution :
Université de Liÿge, Institut de Physique, Liÿge, Belgium
Abstract :
Two processes for the improvement of a bifilar line used as a support for propagation in an underground gallery are described. They consist in introducing networks on the line to bring about energy exchanges between the two propagation modes which characterise it.
Keywords :
radiocommunication; radiowave propagation; tunnelling; HF transmission lines; bifilar line; propagation modes; radio communication; radio propagation; tunnels; underground gallery;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19720051
