The FDMP20401 from Teledyne Microwave Solutions is a Frequency Multiplier with Output Frequency 4 to 20 GHz, Input Power 10 dBm(Input Drive), Harmonics 32 to 50 dB, Conversion Loss 10 to 11.5 dB, Noise Figure 10.5 to 12 dB. Tags: Surface Mount, Frequency Doubler. More details for FDMP20401 can be seen below.