HXI (also known as Harmonic Millimeter Company, formerly Harmonix Corporation) is a manufacturer of wireless communications systems and components. Its products include point-to-point radio links, transceivers for radars and communications systems, as well as component-level products such as low-noise amplifiers (LNAs), power amplifiers, mixers and upconverters, frequency multipliers, switches, detectors, oscillators, isolators, etc. The company serves the defense, space, medical, telecommunications, and aerospace industries.