A 0.1-14 GHz wideband SiGe BiFET power amplifier

In this paper, a wide bandwidth power amplifier, employing a MOS-HBT-HBT (BiFET) cascode as the unit section of distributed amplifier to provide improved output power as well as bandwidth, is designed. A four section distributed amplifier delivers a maximum output power of 22.8 dBm at 13 dBm input power, with -3 dB bandwidth of 13.9 GHz (0.1-14 GHz). The bandwidth and RF power achieved from this amplifier demonstrate that SiGe BiFET wideband power amplifiers have the potential to offer high performance for system-on-a-chip (SoC) integration