Title :
New technique for microwave characterization of material under compressive stress
Author :
Le Gallou, J.-H. ; Ledieu, M. ; Prigent, J.-C. ; Acher, O.
Author_Institution :
CEA, Monts, France
Abstract :
To investigate the high frequency properties of ferrite materials under stress, a new reflection/transmission cell is designed. A uniaxial compressive stress is applied along a hollow cylinder type sample inserted in a modified coaxial cell. This setup allows measurement of permittivity and permeability under stress (values up to 30 MPa) from 150 MHz up to 10 GHz. Specific calculations are used to take into account the modifications in the line geometry. Accuracy of the measurement method is then evaluated.
Keywords :
UHF measurement; coaxial waveguides; ferrite devices; magnetic microwave devices; microwave measurement; permittivity measurement; 0 to 30 MPa; 150 MHz to 10 GHz; ferrite materials; high frequency properties; hollow cylinder type sample; line geometry; microwave characterization; modified coaxial cell; permeability; permittivity; reflection/transmission cell; uniaxial compressive stress; Coaxial components; Compressive stress; Ferrites; Frequency; Geometry; Microwave theory and techniques; Permeability measurement; Permittivity measurement; Reflection; Stress measurement;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034697
