The BZ-17702120-131035-101315 from B&Z Technology is a RF Amplifier with Frequency 17.7 to 21.2 GHz, Gain 37 to 38 dB, Gain Flatness ±1 dB, Noise Figure 1.1 to 1.3 dB, Output Power 10 to 12 dBm. Tags: Low Noise Amplifier. More details for BZ-17702120-131035-101315 can be seen below.