Experimental determination of surface wave mode contributions

1990 ◽  
Author(s):  
Glenn J. Rix ◽  
Kenneth H. Stokoe ◽  
Jose M. Roesset
Keyword(s):  
Surface Wave ◽  
Experimental Determination ◽  
Wave Mode

scholarly journals Dielectric-induced surface wave radiation loss

2020 ◽  
Vol 476 (2236) ◽  
pp. 20190859
Author(s):  
Tobias Schaich ◽  
Anas Al Rawi ◽  
Trevor Morsman ◽  
Mike Payne
Keyword(s):  
Experimental Data ◽  
Surface Wave ◽  
Wave Mode ◽  
Wave Radiation ◽  
Mode Matching ◽  
Full Wave ◽  
Matching Technique ◽  
Surface Waveguide ◽  
Conducting Sheet

We investigate a model which shows how the introduction of a perturbing dielectric close to an electromagnetic surface wave leads to radiation away from the surface through the dielectric. This resembles a surface waveguide passing through a wall or being deployed underground. Our theory, which is based on the mode-matching technique, allows quantitative determination of losses from a bound surface wave mode up to the point of its complete extinction. For a surface wave supported by a coated, conducting sheet the attenuation due to the perturbing dielectric is calculated for a number of frequencies, permittivities of the perturbation and separations between the sheet and the perturbing dielectric. The accuracy of our results is verified by simulation of the system with a full-wave numerical solution. Finally, we report experimental data of perturbed surface waves on a cable, which are in qualitative agreement with our model.

Experimental determination of a state equation for dissipative granular gases

1999 ◽  
Vol 96 (6) ◽  
pp. 1111-1116 ◽  
Author(s):  
E. Falcon ◽  
S. Fauve ◽  
C. Laroche
Keyword(s):  
Experimental Determination ◽  
State Equation ◽  
Granular Gases
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