Title :
Propagation along a two-wire line located at the air-Earth interface
Author :
Hill, David A. ; Anderson, Lee R.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
5/1/1990 12:00:00 AM
Abstract :
A simple quasi-static expression for the propagation constant of a two-wire transmission line located at the air-Earth interface is derived. A numerical solution of the mode equation shows that the quasi-static approximation is valid when the wire separation is much less than a free-space wavelength. The quasi-static approximation can be used to determine the complex dielectric constant of the Earth from measurements of either the propagation constant or the characteristic impedance of the transmission line
Keywords :
permittivity; soil; terrestrial electricity; air-Earth interface; characteristic impedance; complex dielectric constant; mode equation; permittivity; propagation constant; quasi-static approximation; soil; two-wire transmission line; wire separation; Dielectric constant; Dielectric measurements; Earth; Equations; Geometry; Propagation constant; Soil measurements; Transmission line measurements; Transmission line theory; Wire;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
