Aa. Vertii et al., MICROWAVE COMPLEX FOR DETECTING DEFECTS IN RADIOTRANSPARENT MATERIALS, Instruments and experimental techniques, 38(3), 1995, pp. 355-358
A computerized complex for studying dielectric materials in the millim
eter band is described. The test area of a sample is scanned under a n
arrow probing beam. The technique reveals hidden defects with a space
resolution lambda/2 root epsilon. Results of testing nonhomogeneous ce
ramic samples at 130 GHz are presented.