The D4090L from Eclipse MDI is a Frequency Multiplier with Output Frequency 8 to 18 GHz, Input Power 10 to 13 dBm, Harmonics 23 to 30 dBc, Conversion Loss 10.5 - 12.0 dB, Frequnecy 4 to 9 GHz. Tags: Module with Connectors, Frequency Doubler. More details for D4090L can be seen below.