The AT-HPA-3743-4537GN from AT Microwave is a RF Amplifier with Frequency 37 to 43 GHz, Small Signal Gain 45 dB, Output Power 37 dBm, Output Power 5.01 W, Saturated Power 37 dBm. Tags: Power Amplifier. More details for AT-HPA-3743-4537GN can be seen below.