Title :
Radiation of an off-axis point source in a cylindrical medium with an arbitrary number of layers in radial and axial directions
Author_Institution :
Schlumberger-Doll Res., Ridgefield, CT, USA
Abstract :
The numerical mode matching (NMM) method is used to solve the problem of an off-axis electromagnetic point source radiating in a cylindrical medium with an arbitrary number of layers in both radial and axial directions. The solution presented for this nonaxisymmetric electromagnetic field has applications in optical fiber communications, integrated optics, and geophysical exploration. The NMM implemented is verified by comparing numerical results with the analytical solutions available for several simple layered media. The NMM method was used to model electromagnetic well logging tools in complicated formations. The tool eccentricity effects are studied by comparing the nonaxisymmetric results with the corresponding axisymmetric results.<>
Keywords :
electromagnetic field theory; electromagnetic wave propagation; numerical analysis; cylindrical medium; eccentricity effects; electromagnetic point source; electromagnetic radiation; electromagnetic well logging tools; geophysical exploration; integrated optics; nonaxisymmetric electromagnetic field; numerical mode matching; off-axis point source; optical fiber communications; Dielectric constant; Electromagnetic fields; Electromagnetic radiation; Geometry; Nonhomogeneous media; Nonuniform electric fields; Partial differential equations; Permeability; Propagation constant; Tellurium;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221386
