The MDPX-00001CH from Marki Microwave is a RF Duplexer with Frequency 13.2 to 15.4 GHz / 17.4 to 20.3 GHz, Band 1 13.2 to 15.4 GHz, Band 2 17.4 to 20.3 GHz, Insertion Loss 1.76 to 1.91 dB, Isolation 59 to 77 dB. Tags: Surface Mount. More details for MDPX-00001CH can be seen below.