Impedance boundary conditions and effective surface impedance of inhomogeneous metal

2003 ◽  
Author(s):  
Alexander M. Dykhne ◽  
Inna M. Kaganova
Keyword(s):  
Boundary Conditions ◽  
Surface Impedance ◽  
Effective Surface ◽  
Impedance Boundary ◽  
Impedance Boundary Conditions

On the Theory of Guided Electromagnetic Waves on a Non-Ideal Cylindrical Structure

1971 ◽  
Vol 49 (7) ◽  
pp. 864-869
Author(s):  
James R. Wait
Keyword(s):  
Boundary Conditions ◽  
Surface Impedance ◽  
Electromagnetic Waves ◽  
Propagation Constant ◽  
Guided Wave ◽  
Uneven Surface ◽  
Effective Surface ◽  
Impedance Boundary ◽  
Cylindrical Structure ◽  
Impedance Boundary Conditions

A perturbation procedure is employed to derive expressions for the effective surface impedance and propagation constant for a circular rod with an uneven surface. The Leontovich or impedance boundary conditions are assumed to apply in a local sense. It is shown that the roughness leads to attenuation of the guided wave on the structure.

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