SNW-7638131535-12-CM is a E band triple-junction waveguide circulator that covers the frequency range of 76 to 81 GHz. The triple-junction waveguide circulator is designed and manufactured to provide a low insertion loss of 1.5 dB and a high port isolation of 35 dB between designated ports. Unlike single junction circulator, the triple-junction circulator offer inherent high port insertion loss from port 3 to port 1 and slightly lower isolation from port 1 to port 3 due to its unique mechanical configuration. The RF ports of the circulator are WR-12 waveguides with UG-387/U anti-cocking flanges.