The KBA-20+ from Mini Circuits is a Space Qualified Frequency Multiplier with Input Frequency 1.6 to 4.4 GHz, Output Frequency 3.2 to 4.4 GHz, Input Power 11 to 15 dBm, Harmonics 7 to 23 dBc, Conversion Loss 12 to 15.8 dB. Tags: Surface Mount. More details for KBA-20+ can be seen below.