Compact antenna test range equipment

A compact antenna test range equipment, comprising:

• a microwave anechoic chamber comprises a plurality of surfaces connected to each other;
• a reflector disposed in the microwave anechoic chamber and comprising a reflecting surface having a diamond shape comprising four edges and four corners, each of the corners is located between two of the edges, wherein each of the corners aiming at one of the plurality of surfaces;
• a feeding antenna disposed in the microwave anechoic chamber and corresponding to any position of the reflecting surface;
• and
• a test turning table disposed in the microwave anechoic chamber and configured to bear a testing piece which is disposed in a quiet zone and exited by a plane electromagnetic wave;
• wherein the feeding antenna transmits electromagnetic waves to the reflecting surface so as to generate plane electromagnetic waves to the quiet zone or to receive electromagnetic waves radiating from the quiet zone;
• wherein the reflector, the feeding antenna, and the test turning table are located within an area defined by the plurality of surfaces of the microwave anechoic chamber;
• wherein each corner of the four corners of the reflector is positioned to extend toward a corresponding surface of the plurality of surfaces of the microwave anechoic chamber;
• wherein, when each corner of the four corners of the reflector is positioned to extend toward the corresponding surface of the plurality of surfaces of the microwave anechoic chamber, the feeding antenna transmits the electromagnetic waves to the reflecting surface so as to produce relatively weak scattering interference electromagnetic waves to generate more uniform plane electromagnetic waves in the test quiet zone, an interference wave entering the test quiet zone is reduced, and the test quiet zone has high-quality uniform plane electromagnetic waves.