 Counterpoise (ground system)

A counterpoise is a type of ground system used in antenna design, particularly for antennas that are installed in locations where a traditional ground may be impractical or impossible to implement. It serves to improve the antenna's performance by providing a low-resistance ground reference, which can enhance radiation efficiency and reduce unwanted noise and interference. The counterpoise system usually consists of one or more horizontal wires or conductive materials that are placed above the ground and electrically bonded to the antenna.