The KBA-20+ from Mini Circuits is a Frequency Multiplier with Input Frequency 1.6 to 2.2 GHz, Output Frequency 3.2 to 4.4 GHz, Input Power 11 to 15 dBm, Harmonics 12 to 23 dBc, Conversion Loss 12 to 15.8 dB. Tags: Surface Mount. More details for KBA-20+ can be seen below.