5.2 GHz SiGe HBT upconverter using active-inductor LC current mirror

Abstract

A compact 5.2 GHz upconversion micromixer using the 0.35 mu m SiGe HBT technology is demonstrated. A bandpass and area-saving LC current mirror using the active inductor is incorporated to increase the conversion gain. The demonstrated upconverter has conversion gain of -3.5 dB, OP(1dB) of -10 dBm, and O1P(3) of 0 dBm.