The CHA7455-99F from United Monolithic Semiconductors is a RF Amplifier with Frequency 39 to 43.5 GHz, Gain 24 to 29 dB(Linear), Saturated Power 39.5 dBm, Saturated Power 9 W, Input Power 23 dBm. Tags: Chip, Power Amplifier. More details for CHA7455-99F can be seen below.