Dispersion and attenuation characteristics of guided and leaky modes on circular lossy dielectric rod waveguides

2004 ◽  
Author(s):  
Ki Young Kim ◽  
Heung-Sik Tae
Keyword(s):  
Leaky Modes ◽  
Lossy Dielectric ◽  
Dispersion And Attenuation ◽  
Attenuation Characteristics

Wave Propagation in Viscoelastic Laminates

1971 ◽  
Vol 38 (2) ◽  
pp. 448-454 ◽  
Author(s):  
M. Stern ◽  
A. Bedford ◽  
C. H. Yew
Keyword(s):  
Wave Propagation ◽  
Effective Modulus ◽  
Simplified Model ◽  
Structure Parameter ◽  
Longitudinal Waves ◽  
Material Parameters ◽  
Dispersion And Attenuation ◽  
Attenuation Characteristics ◽  
Representative Material ◽  
Effect Of Structure

For a simplified model of a laminated medium consisting of alternating layers of elastic and viscoelastic materials, the dispersion and attenuation characteristics for “plane,” longitudinal waves propagating in the direction of the layering are obtained. The dispersion and attenuation curves depend on a structure parameter involving the thickness of the layers and can deviate significantly from corresponding results for a continuum “effective-modulus” model. Curves are presented for a specific case with representative material parameters showing the effect of structure and of variations in the parameters of the composite.

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