Title :
Electromagnetic Surface Waves in Mixed Media
Author :
Mok, V.H. ; Davis, L.E.
Author_Institution :
The Electromagnetic Centre, Dept. of Electrical Eng. & Electronics, University of Manchester Institute of Science and Technology (UMIST), P. O. Box 88, Manchester M60 1QD, U. K. Email: jimmymok@ieee.org
Abstract :
TM surface waves on an interface between semiconductors, ferrites or artificial dielectrics are considered. The normalised phase coefficient, ß/k0, is calculated for a range of values for the two media, first with (¿r1 = 1, ¿r1 = 1) and then with (¿r1 = 1, ¿r1 = -1) assuming - 5 < ¿r2/¿r1 < 5, -5 ¿r2/¿r1 < 0. This range of parameters includes some "double negative" cases for the second medium. Dispersion diagrams are presented for the case where region 1 is an artificial magnetic dielectric and region 2 is a semiconductor plasma. The results have implications for the design of miniature passive components.
Keywords :
Dielectric materials; Electromagnetic scattering; Ferrites; Permeability; Permittivity; Plasma waves; Semiconductor materials; Surface acoustic wave devices; Surface waves; Tellurium;
Conference_Titel :
Microwave Conference, 2003 33rd European
Conference_Location :
Munich, Germany
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMA.2003.340826
