Abstract

We present an ultra-wideband, Low Noise Amplifier (LNA) implemented in a Silicon-Germanium Heterojunction Bipolar Transistor (SiGe HBT) technology. This SiGe LNA covers a frequency range of 8-18 GHz and achieves a peak gain of 15.6 dB at nominal bias and a nominal OIP3 of 3 dBm at 13 GHz. The Noise Figure (NF) of the LNA is 3.6-7.9 dB across band, and it consumes 7 mA from a 3.3 V supply. This LNA incorporates bias control knobs for circuit `self-healing' to compensate for process-induced (or other) variations in performance metrics. Process variations are detected using a companion source measure unit (SMU) test circuit that gathers DC device information to determine the healing to be applied.

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