A serrated edge reflector is a type of radar target used in radar cross section (RCS) measurements. It consists of a flat metal plate with serrations or teeth cut into the edges of the plate. The serrations create a surface that reflects radar energy in a specific direction, making it useful as a calibration target for RCS measurements.

The serrated edge reflector is typically made from a material with a known RCS, such as copper or aluminum, and is designed to have a consistent and repeatable response to radar energy. The serrations are carefully designed to control the direction and intensity of the reflected radar energy, allowing for accurate and repeatable measurements of the radar system’s performance.