4 Watt / 900Mhz RF Amplifier

4 Watt / 900Mhz RF Amplifier
This RF amplifier circuit has a power output of 4 Watts at a frequency of 900 Mhz. Applying Wilkinson power dividers in the base and collector circuits of Q2 and Q3, a couple of SD1853 driver application transistor are paralleled for double the power output of the 2-W amplifier. (more…)