Electromagnetic field at tip of crack in dielectric material

2003 ◽  
Author(s):  
Z.T. Kurlandzka
Keyword(s):  
Electromagnetic Field ◽  
Dielectric Material

Reflection Intensity Measurement for Dielectric Material Using a Microwave Single Probe and Its Electromagnetic Field Analysis

2006 ◽  
Vol 301 ◽  
pp. 125-128 ◽  
Author(s):  
Hirofumi Kakemoto ◽  
Satoshi Wada ◽  
Takaaki Tsurumi
Keyword(s):  
Electromagnetic Field ◽  
Simulation Model ◽  
Dielectric Material ◽  
Impedance Matching ◽  
Coaxial Cable ◽  
Field Analysis ◽  
Single Crystal Substrate ◽  
Single Probe ◽  
Crystal Substrate ◽  
Reflection Intensity

Microwave reflection intensity for microwave absorber, Cu-plate and Al2O3 (0001) single crystal substrate was measured from 8GHz to11GHz as a function of distance between single probe and sample at room temperature. The minimum reflection intensity was observed in the distance of 0.2mm between single probe and sample at 9.4GHz, although the reflection intensity was decreased with increasing distance in other measurement frequencies. The electromagnetic field analysis was hence carried out for simulation model that is defined with coaxial cable, probe and sample using finite differential time domain method. The reflection coefficient and impedance for simulation model were calculated, and compared to the experimental data. From results of electromagnetic analysis, the minimum point of reflection intensity was caused from an impedance matching.

Comparison of high- and low-frequency electromagnetic field analysis

1993 ◽  
Vol 3 (3) ◽  
pp. 363-371 ◽  
Author(s):  
A. Konrad ◽  
I. A. Tsukerman
Keyword(s):  
Electromagnetic Field ◽  
Low Frequency ◽  
Field Analysis
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