The MM-LNA-180400-21-4 from Mountain Microwave Technology is a RF Amplifier with Frequency 18 to 40 GHz, Gain 21 dB, Gain Flatness ±1 dB, Noise Figure 4.5 dB, Output Power 20 dBm. Tags: Low Noise Amplifier. More details for MM-LNA-180400-21-4 can be seen below.