LNF-CIC4_12B is ultra-low insertion loss cryogenic circulators operating in the 4-12 GHz frequency range. 

It has been designed from ground up to meet the strict requirements of ultra-low temperature physics research. The gold plated OFHC copper body ensures minimum loss and that this loss reaches the lowest possible temperature to minimize thermal noise. 

The isolator/circulator is packaged in a slim coaxial module using industry standard SMA connectors. The module measures 16×21.46×10.16 mm excluding the connectors.