Title :
Space and time wave shaping for transmission into a lossy medium
Author :
Nabulsi, Khalid A. ; Wait, James R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
fDate :
6/1/1993 12:00:00 AM
Abstract :
Electromagnetic waves traveling into a lossy medium suffer distortion in both time and space. This situation poses a design problem if it is desired to have a specified form, in both time and space, for the fields at a given location in the lossy medium. An analytical procedure is presented so that the specified field in a lossy conducting half-space can be realized with a discrete array of concentric loop currents on the surface. Each loop current is stepped on at a finite sequence of discrete times. The procedure could be applied in geophysical subsurface probing, hyperthermic cancer therapy, and digital signal transmission
Keywords :
biothermics; electromagnetic wave transmission; radiation therapy; concentric loop currents; conducting half-space; digital signal transmission; electromagnetic transmission; geophysical subsurface probing; hyperthermic cancer therapy; lossy medium; space wave shaping; surface currents; time wave shaping; Cancer; Conductivity; Equations; Geometry; Helium; Hyperthermia; Medical treatment; Permittivity; Propagation losses; Space exploration;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
