Electromagnetic radiation and scattering for a gap in a corner backed by a cavity filled with DNG metamaterial
Article first published online: 4 AUG 2011
Copyright 2011 by the American Geophysical Union.
Volume 46, Issue 4, August 2011
How to Cite
2011), Electromagnetic radiation and scattering for a gap in a corner backed by a cavity filled with DNG metamaterial, Radio Sci., 46, RS4005, doi:10.1029/2010RS004471., , and (
- Issue published online: 4 AUG 2011
- Article first published online: 4 AUG 2011
- Manuscript Accepted: 4 MAY 2011
- Manuscript Revised: 16 MAR 2011
- Manuscript Received: 7 JUL 2010
- Mathieu function;
 A partially covered cavity, or trench, located along the edge of two intersecting metallic walls perpendicular to each other is considered. The cross section of the cavity is a quarter ellipse and is slotted along the interfocal distance. The cavity is filled with a double-negative (DNG) metamaterial that is isoimpedance to the material filling the half-space above the trench. This two-dimensional boundary value problem is solved exactly, in the frequency domain, when the primary field is either a plane wave of arbitrary polarization and direction of incidence or an electric or magnetic line source. Numerical results are exhibited and discussed.