Title :
An observation on the Sommerfeld-integral representation of the electric dyadic Green´s function for layered media
Author :
Viola, Mark S. ; Nyquist, Dennis P.
Author_Institution :
Dept. of Electr. Eng. & Syst. Sci., Michigan State Univ., East Lansing, MI, USA
fDate :
8/1/1988 12:00:00 AM
Abstract :
The authors discuss the electric dyadic Green´s function for layered dielectrics. It is known that for the free-space electric dyadic Green´s function, evaluation of the electric field at observation points within the source region requires specification of a principal volume along with the corresponding depolarizing dyad. Special considerations are invoked for layered background media which are appropriate for the electromagnetics of integrated electronics. It is shown that use of the Sommerfeld-integral representation of the electric dyadic Green´s function leads to an innate choice for the depolarizing dyad. A corresponding principal volume is subsequently identified; it is demonstrated that there exists an alternative choice for this excluding region which leads to the same depolarizing dyad
Keywords :
Green´s function methods; dielectric materials; electric fields; electromagnetic field theory; integrated optics; integrated optoelectronics; monolithic integrated circuits; Sommerfeld-integral representation; depolarizing dyad; electric dyadic Green´s function; electric field; integrated electronics; layered dielectrics; layered media; optical integrated circuits; principal volume; Current; Dielectric substrates; Electromagnetics; Green´s function methods; Integral equations; Integrated circuit modeling; Maxwell equations; Nonhomogeneous media; Optical films; Refractive index;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
