Ms. Viola, A NEW ELECTRIC-FIELD INTEGRAL-EQUATION FOR HETEROGENEOUS DIELECTRIC BODIES OF REVOLUTION, IEEE transactions on microwave theory and techniques, 43(1), 1995, pp. 230-233
In this paper, a novel electric field integral equation (EFIE) is deve
loped for rotationally-symmetric heterogeneous dielectric bodies. This
EFIE has several attractive features. Firstly, the azimuthal field co
mponent has been eliminated in this formulation thereby reducing the n
umber of scalar unknowns from three to two. Secondly, it is a pure-int
egral equation in which there are no terms involving derivatives of th
e field components. Finally, this description is devoid of any highly
singular kernel which would require a principal-value evaluation of th
e associated integral. These attributes render this formulation advant
ageous for both computational and theoretical pursuits.