Expansion Of An Infrared Detection Technique Using Conductive Mesh In Microwave Shielding Applications

An IR transparent, but microwave opaque, conductive mesh structure is developed to shield an infrared (IR) system from intense electromagnetic (EM) interference in the microwave range . To prevent potentially damaging EM radiation from penetrating or coupling into the IR system, the IR scanner is enclosed in a Faraday cage. One implication of this IR camera shielding technique is an ability to acquire accurate IR data in any noisy EM environment. A second application of the conductive mesh involves the investigation of EM fields in a copper cylinder, closed at both ends, constructed with a copper mesh section incorporated at one end of the cylinder. Using several positions for the detection material, three-dimensional field profiles are obtained and the results are presented.