Reconfigurable power amplifier based on PIN switch

The utility model discloses a reconfigurable power amplifier based on a PIN switch. The reconfigurable power amplifier comprises an input port, an input matching circuit, the PIN switch, a grid electrode bias circuit, a transistor, a drain electrode bias circuit, an output matching circuit and an output port. Wherein the input end of the input matching network is connected with the power input end, the output end of the input matching network is connected with the grid electrode of the transistor, the grid electrode bias circuit is connected with the grid electrode in parallel, the drain electrode bias circuit is connected with the drain electrode in parallel, the drain electrode of the transistor is connected with the input end of the output matching circuit, and the output end of the output matching circuit serves as power output. By adopting the PIN switch, the practical operation difficulty during plate making and performance testing is effectively reduced, a novel reconfigurable theory is provided, the f