UHF FLAW DETECTOR Russian patent published in 2006 - IPC G01N22/02 

FIELD: radio measurements.

SUBSTANCE: UHF flaw detector contains UHF generator, connected through decoupling block to receiving-transmitting micro-strip antenna. On the emitting surface of micro-strip antenna, dielectric plate is positioned, which is provided with a shelf in form of disk, coaxial with geometrical center of antenna. Diameter of disk does not exceed linear dimensions of antenna, while its thickness is equal to thickness of second dielectric plate. Disk is mounted in aperture, made in the second dielectric plate. Also provided is a dependence of values of dielectric penetrability of material utilized in substrate of micro-strip antenna and material of object being controlled.

EFFECT: increased sensitivity of UHF flaw detector when detecting extensive metallic enclosures.

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