The CA218-4028 from Ciao Wireless is a RF Amplifier with Frequency 2 to 18 GHz, Gain 32 to 34 dB, Gain Flatness ±2.0 to ±1.5 dB, Noise Figure 3.5 to 6 dB, Output Power 28 to 30 dBm. Tags: Power Amplifier. More details for CA218-4028 can be seen below.