The BZ-17702120-181035-132020 from B&Z Technology is a RF Amplifier with Frequency 17.7 to 21.2 GHz, Gain 35 to 37 dB, Gain Flatness ±1.3 dB, Noise Figure 1.6 to 1.8 dB, Output Power 10 to 12 dBm. Tags: Low Noise Amplifier. More details for BZ-17702120-181035-132020 can be seen below.