Title :
Mixed-potential integral expression formulation of the electric field in a stratified dielectric medium-application to the case of a probe current source
Author :
Vandenbosch, Guy A E ; Van de Capelle, Antoine R.
Author_Institution :
Telecommun. & Microwaves Sec., Katholique Univ. Leuven, Heverlee, Belgium
fDate :
7/1/1992 12:00:00 AM
Abstract :
The well-known procedure for determining the electric field in a structure consisting of an arbitrary number of planar dielectric layers is modified in order to obtain a form specially suited for the analysis of multiprobe multipath configurations. In general, the field is generated by arbitrary currents in the layers and arbitrary sheet currents in the transitions between the layers. The currents may be electric as well as magnetic, and the dielectric layers are isotropic, homogeneous, and lossy. The procedure results in Green´s functions especially suited for the analysis of multiprobe multipatch configurations. They can be used in an efficient mixed-potential integral expression formulation. The theoretical procedure is applied in the case of a probe current source situated in one of the dielectric layers of the structure. For this probe current a highly efficient attachment current distribution is derived. Comparison of measured and calculated results for example structures proves the accuracy of both the approach and the attachment mode
Keywords :
antenna theory; electric fields; electromagnetic field theory; integral equations; microstrip antennas; EFIE; Green´s functions; arbitrary currents; arbitrary sheet currents; attachment current distribution; electric field; microstrip antenna; mixed-potential integral expression; multiprobe multipath configurations; planar dielectric layers; probe current source; stratified dielectric medium; Current distribution; Dielectric losses; Green´s function methods; Integral equations; Magnetic analysis; Maxwell equations; Moment methods; Permeability; Permittivity; Probes;
Journal_Title :
Antennas and Propagation, IEEE Transactions on