Penetration of electromagnetic fields through an elliptical hole in a wall of finite thickness

The penetration of electromagnetic fields through an elliptical hole of variable eccentricity in a wall of finite thickness is analyzed. Six cases are considered: p/spl ap/0, 0.2, 0.4, 0.6, 0.8, 1, where p=(a-b)/(a+b), a and b being semimajor and semiminor axes of the ellipse. Polarizabilities and susceptibilities are calculated. Results for zero-thickness wall are compared to known analytical expressions.>