The RFLC-601-6 from RF-Lambda is a Coaxial Circulator that operates from 12 to 18 GHz. It has an insertion loss of less than 0.6 dB, isolation of over 16 dB, and can handle up to 25 watts power. This RoHS-compliant circulator is available in a module with SMA (F) connectors and is ideal for aerospace and military applications.