Open AccessDevelopment of an improved coaxial cell for measuring the shielding effectiveness of materials
Author(s) -
Alexander V. Demakov,
Maxim E. Komnatnov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/734/1/012077
Subject(s) - electromagnetic shielding , coaxial , reflection coefficient , materials science , parametric statistics , reflection (computer programming) , transmission line , acoustics , range (aeronautics) , optics , mechanical engineering , computer science , electrical engineering , engineering , composite material , physics , mathematics , statistics , programming language
The article presents the results of the development of a coaxial cell for measuring shielding effectiveness of composite materials. The basis for the design of the cell was a model of a coaxial transmission line with air filling, which was obtained using full wave analysis and parametric optimization and is characterized by a maximum reflection coefficient |S 11 | less than -20 dB in the frequency range up to 10 GHz. Based on the results of modeling and optimization, an improved design of the cell for SE measuring is presented, which differs from standardized cells in a simplified assembly with the material located inside and providing measurements also in the low-frequency region.