Patent ID: 6788244
Filing Date: 2004-09-07
Classification: G01S,H01Q

Abstract:
A device for inspecting an assembly including a surface coating containing magnetic radar absorbing materials on a conductive surface, the device comprising:first and second hollow conductive waveguides having open first ends and closed off second ends, said first waveguide adapted to direct electromagnetic radiation to the surface of the coating and said second waveguide adapted to receive electromagnetic radiation reflected off the surface coating; said first and second waveguides at an acute angle to each other; third and forth waveguides made of a dielectric material, said third and fourth wave guides having first ends extending into said first ends of said first and second wave guides and second ends extending outward from said first ends of said first and second wave guides; first means coupled to said second end of said first waveguide for delivering electromagnetic energy to said first wave guide and to said third waveguide for transmission to the assembly; and second means coupled to said second end of said second waveguide for receiving electromagnetic energy transmitted by said first means to the assembly and reflected back to said fourth waveguide.