Backscattering by cylinders enclosed in wire cages

Calculations of the backscattering width of various metal cylinders enclosed in wire cages are compared with measured values obtained from a standing-wave-ratio method. The calculations are done by assuming that the wire cage simulates a thin continuous current sheath with suitable boundary conditions. The special cases of bare cylinders and of empty wire cages are also treated. The results show that the backscattering width is a sensitive function of the cage geometry.