Title :
A Generalized Additional Boundary Condition for Mushroom-Type and Bed-of-Nails-Type Wire Media
Author :
Yakovlev, Alexander B. ; Padooru, Yashwanth R. ; Hanson, George W. ; Mafi, Arash ; Karbasi, Salman
Author_Institution :
Dept. of Electr. Eng., Univ. of Mississippi, Oxford, MS, USA
fDate :
3/1/2011 12:00:00 AM
Abstract :
An additional boundary condition (ABC) for mushroom or bed-of-nails metamaterials is generalized for thin 3-D or 2-D material patches or ground planes. It is shown that the usual ABC necessary for the homogenization of these wire-medium metamaterials fails for thin imperfect conductors, and a generalization is presented based on charge conservation. The new ABC leads to results that are in good agreement with full-wave simulations.
Keywords :
conducting materials; electromagnetic wave reflection; metamaterials; additional boundary condition; bed-of-nails-type wire medium metamaterials; charge conservation; ground planes; material patches; mushroom-type wire medium metamaterials; reflection coefficient; Boundary conditions; EM modeling; composite material structures; electromagnetic (EM) analysis; nanostructures;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2010.2090358
