Marki Microwave surface mount RF/microwave quadrature hybrid couplers are power splitters that produce a 90° phase difference between their two outputs. Marki hybrid couplers feature a broadband 50 Ω match, tight amplitude and phase balance, and high output port isolation up to 55 GHz. These are commonly used in applications such as balanced amplifiers and quadrature signal generation for IQ, image reject mixers, and single sideband mixers.