Measurement of the complex permittivity of low loss polymer powders in the millimeter-wave range.
An improved measurement method of complex permittivity of low loss polymer powders is suggested. The measurements are done in the mm-wave range using a quasi optical resonator. The 2-D corrugated mode exciter is employed to improve suppression of undesirable higher modes. The model used for reconstructing complex permittivity takes into account ohm losses of metal mesh coupling that provide better accuracy of the reconstructing procedure. An example illustrating this method is reported.
Kapilevich
Boris
B
The College of J&S, Dept. of Electrical and Electronics Eng., The Israeli Center for Radiation Sources and Applications, P.O. Box 3, Ariel, 44837, Israel. boriskap@yosh.ac.il
Litvak
Boris
B
Wainstein
Vladimir
V
Moshe
Danny
D
D004735:Energy Transfer; D007259:Infrared Rays; D008280:Magnetics; D008422:Materials Testing; D008872:Microwaves; D011108:Polymers / Q000737:chemistry*; D011208:Powders / Q000737:chemistry*
D011108:Polymers; D011208:Powders