Patent ID: 6940354

Claim:
A microwave power amplifier, comprising: a drive amplifying stage ( 200 ) including 1) a first power device ( 213 ), 2) a first RC parallel circuit ( 217 ) connected between an input port and a gate of said power device, 3) a first shunt resistor ( 218 ) connected between a ground and said gate of said first power devices, and 4) a negative feedback circuit ( 207 ) connected in parallel with said first power device; b) an interstage matching circuit ( 208 ) connected in series with said drive amplifying stage; and c) a power amplifying stage ( 280 ) including 1) a second power device ( 215 ) and a third power device ( 216 ) connected in parallel with each other and to a power divider ( 211 ) and a power combiner ( 212 ), 2) a second RC parallel circuit ( 221 ) connected between said second and third power devices and said interstage matching circuit, and 3) a second shunt resistor ( 222 ) connected between said ground and said second and third power devices.