QuinStar Technology, Inc. Precision Junction Isolator QJI Series

QuinStar Technology’s QJY series precision junction circulators and QJI series precision junction isolators are available in seven waveguide bands covering the frequency range of 18 to 110 GHz. Single-junction isolators and single- and three- junction circulator versions are offered. These three-port Y-junction ferrite devices feature high isolation, low insertion loss, and broad bandwidth. The three-junction circulators effectively combine a standard circulator with input and output isolators in a compact package. Junction circulators and isolators are used to provide load isolation in a wide variety of components including Gunn and IMPATT oscillators and amplifiers, upconverters and downconverters, power combiners, and also as duplexers at the antenna ports of millimeter-wave transceiver systems. • Compact • High Isolation • Low Insertion Loss • Broadband