The RFLC26G40GA from RF-Lambda is a Space Qualified Circulator with Frequency 26.5 to 40 GHz, Bandwidth 13500 MHz, Average Power Forward 10 W, Insertion Loss 1.6 to 1.7 dB, Isolation 14 to 15 dB. Tags: Module with Connector, Coaxial Circulator. More details for RFLC26G40GA can be seen below.