Ideal Boundary and Generalized Soft-and-Hard Conditions

摘要

Ideal boundary conditions require vanishing of the normal component of the211u001ecomplex Poynting vector at the boundary surface. A novel set of ideal GSHS 211u001e(generalized soft-and-hard surface) conditions is introduced which depends on a 211u001ecomplex vector. GSHS conditions reduce to those of the SHS (soft-and-hard 211u001esurface) boundary when the complex vector becomes real-valued. Basic properties 211u001efor a plane wave reflecting from a GSHS plane are derived. It is shown that TE 211u001eand TM components (with respect to the complex vector and its complex conjugate) 211u001eof a plane wave are reflected from the GSHS plane as from respective perfect 211u001emagnetic or electric conductor planes. Image theory for the GSHS plane is given 211u001ewith an example. Finally, realization of the GSHS plane and its application in 211u001epolarization transformation are discussed.