The TH101-400 / 2.0-2.2GHz from Sainty-Tech Communications Limited is a RF & Microwave Circulator with Frequency 2.0 to 2.2 GHz, Insertion Loss 0.6 dB, Isolation 18 dB, Operating Temperature -30 to 70 Degree C. Tags: Coaxial Circulator. More details for TH101-400 / 2.0-2.2GHz can be seen below.