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Using an earlier numerical formulation, we present results for the reflection characteristics of the wire mesh located just above the air/ground interface. The influence of the various parameters, such as angle of incidence, interwire spacing, wire radii, height of wire mesh, and ground conductivity is investigated. Both square and rectangular meshes are considered. An important finding is that the reflecting efficacy is only slightly degraded when the mesh is moved from, say a height of six wire radii down to a height equal to one wire radius. Farfield radiation patterns for source dipoles of various orientation, located over the mesh, are also calculated. These are compared with the corresponding patterns for a ground surface with no mesh present. The major differences occur at grazing angles, as expected. Also in this region, some of the approximate formulations, such as those based on the average boundary condition techniques used by the Soviets, break down.
Electromagnetic Compatibility, IEEE Transactions on (Volume:EMC-19 , Issue: 4 )
Date of Publication: Nov. 1977