Title :
Formulas for the Number of Surface Waves on Layered Structures
Author :
Valerio, Guido ; Jackson, David R. ; Galli, Alessandro
Author_Institution :
Dept. of Electron. Eng., Sapienza Univ. of Rome, Rome, Italy
fDate :
7/1/2010 12:00:00 AM
Abstract :
Closed-form expressions are derived for the number of surface waves propagating along a general multilayered structure with media having positive material parameters. The expressions shown here are also useful for the efficient numerical determination and ordering of the cutoff frequencies of surface waves on multilayered structures. The presented formulas are simple but exact. Validation is provided with full-wave dispersive analyses of several types of layered structures.
Keywords :
dispersion (wave); electromagnetic wave propagation; inhomogeneous media; closed-form expressions; full-wave dispersive analyses; multilayered structure; numerical determination; positive material parameters; surface waves; Dispersion analysis; layered media; surface waves;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2010.2050028
