Small Dielectric Objects Research Articles

Mircowave circuit parameters predicted by a scalar equation of the Schrödinger type

In this paper we represent a waveguide with the aid of an equation of the Schrodinger type by analogy with a quantum potential barrier. We apply this theory to evaluate the frequency shift due to the insertion of a small dielectric object in the microwave cavity, and also to the calculation of the limits of the pass and stop bands of a corrugated waveguide.

Scattering by a small object close to an interface I Exact-image theory formulation

Exact-image theory is applied to the problem of electromagnetic wave scattering from a small dielectric object above an interface separating two isotropic and homogeneous media. The object is assumed to be electrically small and far enough from the interface so that its internal field can be assumed to be uniform. The approach is applicable to any scatter that can be represented by an electric dipole.