A 0.7–1.9GHz broadband pseudo-differential power amplifier using 0.13-μm SiGe HBT technology

In this paper, a broadband power amplifier operating from 0.7GHz to 1.9GHz is designed and fabricated using 0.13-μm SiGe HBT technology. The pseudo-differential structure, adaptive bias control technique, broadband matching network and compensated matching technique are used to improve the performance. The simulation results show that the power amplifier operates from 0.7GHz to 1.9GHz, P
_1dB
and PAE are better than 25dBm and 23%, respectively.