Three-Dimension Impedance Representation for Microwave Absorptive Ceramics

2013 ◽  
Vol 544 ◽  
pp. 489-492
Author(s):  
Heng Liu ◽  
Zhao Yang Zeng ◽  
Yi Min Guo
Keyword(s):  
Magnetic Property ◽  
Transmission Line ◽  
Surface Effect ◽  
Three Dimensional ◽  
Calculated Data ◽  
Three Dimension ◽  
Transmission Line Theory ◽  
Measurement Results ◽  
Line Theory ◽  
Electro Magnetic

The application of three-dimension impedance representation for microwave absorptive ceramics was investigated. Based on transmission line theory, the electro-magnetic property of the ceramics was equivalent to impedance of a three-dimensional impedance network, and the surface effect was described by an added layer with certain impedance. Finally the usability of this representation was discussed by comparing the calculated data with the measurement results.

scholarly journals Potentials of the Application of the Electrical Transmission Line Theory for Thermal Investigations on Cables

2021 ◽  
Vol 19 ◽  
pp. 31-40
Author(s):  
Anika Henke ◽  
Stephan Frei
Keyword(s):  
Transmission Line ◽  
Thermal Effects ◽  
Electrical Transmission ◽  
Transmission Line Theory ◽  
Electrical Transmission Line ◽  
Thermal Investigations ◽  
Measurement Results ◽  
The Laplace Transform ◽  
Line Theory ◽  
Similarities And Differences

Abstract. In this contribution, similarities and differences between electrical and thermal effects on cables are investigated. In the electrical transmission line theory, a wide variety of methods is known to describe the voltage and current along cables. The potential for the adaption of some of those methods to thermal problems is discussed. Exemplarily, for an unshielded single cable, an analytical solution based on the Laplace transform and an approach based on cascaded equivalent circuits are compared with a numerical reference solution and measurement results.

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