The 3A2BAE from Renaissance Electronics is a coaxial circulator that operates from 0.7 to 1 GHz. It provides an isolation of 16 dB and an insertion loss of 0.7 dB. The circulator can handle up to 120 Watts of power. It is available in a module that measures 1.50 x 1.67 x 1.01 inches and is ideal for satellite communication applications.
