The amplifier operates across the
2-30 MHz band with relatively flat gain response and reaches gain saturation at
approximately 210 W of output power. Both input and output transformers are 4:1 turns
ratio (16:1 impedance ratio) to achieve low input SWR across the specified band and a high
saturation capability. When using this design, it is important to interconnect the ground
plane on the bottom of the board to the top, especially at the emitters of the MRF454s. |