Modified Theory of Physical Optics Approach to Diffraction by an Interface between PEMC and Absorbing Half-Planes

Advanced Electromagnetics

Y. Z. Umul¹ 

[1] Cankaya University;

关键词: Diffraction theory, High-frequency techniques, Modified theory of physical optics, Perfect absorber, Perfect electromagnetic conductor.;   

DOI  :  10.7716/aem.v10i2.1679

来源: DOAJ

【 摘 要 】

The scattering of electromagnetic plane waves by an interface, located between perfect electromagnetic conductor and absorbing half-planes is investigated. The perfect electromagnetic conductor half-plane is divided into perfect electric conductor and perfect magnetic conductor half-screens. The same decomposition is done for the absorbing surface. Then four separate geometries are defined according to this approach. The scattered fields by the four sub-problems are obtained with the aid of the modified theory of physical optics. The resultant scattering integrals are combined in a single expression by using key formulas, defined for the perfect electromagnetic conductor and absorbing surfaces. The scattering integral is asymptotically evaluated for large values of the wave-number and the diffracted and geometric optics fields are obtained. The behaviors of the derived field expressions are analyzed numerically.

【 授权许可】

Unknown