The ACH & ARH Series from Ducommun is a range of circular and rectangular gain horn antennas that operate from 18 GHz to 110 GHz. They are available in multiple waveguide sizes and frequency configurations with gains of 15, 20, 23, and 25 dBiand half power beamwidths of 24, 13, 9, 7 degrees. They can be used in antenna range reference and radiation element for sub-systems application.