It consists of a dipole driven element mounted in front of two flat rectangular reflecting screens joined at an angle, usually 90°. Corner reflector antennas have moderate gain of 10–15 dB, high front-to-back ratio of 20–30 dB,  and wide bandwidth.
A corner reflector antenna is formed by a dipole-driven component situated in front of two flat, rectangular reflective surfaces that are joined at a right angle. These antennas have moderate gain levels of 10–15 dB, high front-to-back ratios of 20–30 dB, and operate over a wide frequency range.