An Amplitude-Only Measurement Technique for the Evaluation of the Complex Permittivity Of Composite Materials in the Microwave Range.

1990 ◽  
Vol 189 ◽  
Author(s):  
B. Bisceglia ◽  
A. Ciliberto ◽  
G. D'Ambrosio ◽  
G. Ferrara ◽  
R. Massa ◽  
...  
Keyword(s):  
Numerical Calculation ◽  
Composite Materials ◽  
Transmission Line ◽  
Measurement Technique ◽  
Complex Permittivity ◽  
Rectangular Waveguide ◽  
Measurement Techniques ◽  
Microwave Range ◽  
Permittivity Measurement ◽  
Calculation Procedures

ABSTRACTThe basic transmission line and rectangular waveguide equations, with reference to different loading conditions, are firstly reviewed. Amplitude and phase, amplitudeonly, and phase-only permittivity measurement techniques are briefly discussed. Two very naive graphical and numerical calculation procedures are presented, together with the results of measurements on some composite materials.

scholarly journals Electromagnetic characteristics of filaments for 3D printing with carbon fillers in the microwave range

2019 ◽  
Vol 30 ◽  
pp. 07010
Author(s):  
Grigoriy E. Kuleshov ◽  
Alexander V. Badin ◽  
Kirill V. Bilinsky ◽  
Kirill V. Dorozhkin
Keyword(s):  
Composite Materials ◽  
3D Printing ◽  
Complex Permittivity ◽  
Electromagnetic Response ◽  
Microwave Range ◽  
Additive Technology ◽  
New Radio ◽  
Electromagnetic Characteristics ◽  
Carbon Fillers ◽  
Conductive Plastics

The results of a study of the complex permittivity and electromagnetic response from polymer composite materials obtained by additive technology from 3D printing filaments containing various carbon fillers are presented. New radio filaments for 3D printing with MWCNTs have been created. Investigated PLA-Conductive plastics may be used to create a shielding coating or narrowband absorbers for microwave range.

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