A Novel Design of Compact Antenna Test Range for Ultra-Precise Antenna Test

A novel compact antenna test range (CATR) design is presented in this study. Conventionally, the edges of the reflector are parallel to the chamber walls. Instead, a diamond-shape reflector (DSR) is proposed in this design. The reflector is rotated for 45 degrees, so the corners of DSR point to the walls (patent pending).This design suppresses the scattering from the absorbers on the walls, which improves quiet-zone (QZ) performance accordingly. This is important for some applications, such as angle-of-arrival (AoA), which are sensitive to clutters. In addition, the chamber size can be more compact as the new design allows shorter distance between the reflector and the walls. The design has been realized and validated with QZ measurement.