Band-reconfigurable LDMOS power amplifier

A band-reconfigurable LDMOS high power amplifier (PA) with state-of-the-art performance is presented. The frequency reconfigurability is implemented by band-switchable matching networks using PIN diodes. The PA provides power-added efficiencies which are higher than 61% and output power levels exceeding 8 W at 0.9 GHz, 1.5 GHz, and 1.9 GHz. The input return loss in all the three bands is better than 12 dB.