EM Scattering

EM scattering by various scatterers.

  Model and Comments Animation by FDTD
PEC Cylinder

radius: 1.5 wl.

source: magnetic line current; distance between center of the cylinder and source: 6.25 wl.

 
Dielectric Cylinder

radius: 1.5 wl., relative permittivity: 3.0

source: magnetic line current; distance between center of the cylinder and source: 6.25 wl.
Parabolic Reflector

aperture radius: 3 wl.
Dielectric Lens

si=infinity

lensmaker's formula:
f=3 wl., so=3 wl. (Gaussian lens formula: 1/so+1/si=1/f), R1=4.5 wl., R2=-4.29 wl., relative permittivity: 3

c.f.) E. Hecht, Optics, Eqs.(5.16)-(5.17), p.242

si=infinity

lensmaker's formula:
f=3 wl., so=3 wl. (Gaussian lens formula: 1/so+1/si=1/f), R1=4.5 wl., R2=-4.29 wl., relative permittivity: 3

c.f.) E. Hecht, Optics, Eqs.(5.16)-(5.17), p.242

si=6 wl.

lensmaker's formula:
f=3 wl., so=6 wl. (Gaussian lens formula: 1/so+1/si=1/f), R1=4.5 wl., R2=-4.29 wl., relative permittivity: 3

c.f.) E. Hecht, Optics, Eqs.(5.16)-(5.17), p.242
Copyright(c) 2008 Takuichi Hirano, All rights reserved.

Back