The CA218-4105 from Ciao Wireless is a RF Amplifier with Frequency 2 to 18 GHz, Gain 34 to 37 dB, Gain Flatness ±2.5 to ±1.5 dB, Noise Figure 3.6 to 4 dB, Output Power 20 to 22 dBm. Tags: Power Amplifier. More details for CA218-4105 can be seen below.