Excitation of monofilar and bifilar modes on a transmission line in a circular tunnel
- 1 August 1974
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 45 (8) , 3402-3406
- https://doi.org/10.1063/1.1663792
Abstract
We consider the excitation of monofilar and bifilar modes on a transmission line in a circular tunnel by a short dipole antenna. As expected, the monofilar mode is excited more strongly by an antenna placed in the tunnel, but the bifilar mode has lower attenuation. The excessive losses in the monofilar or coaxial mode are attributed to the return current flow along the tunnel walls. In the bifilar or transmission-line mode the fields are more confined to the region of the wire conductors.This publication has 0 references indexed in Scilit: