Ultra-Wideband Power And Low Noise Distributed Amplifiers With Area Reduction Methods

Ultra-wideband (UWB) amplifiers are essential components of communication systems,radar, and fiber-optic technologies that require a wide bandwidth and minimallatency. Distributed amplifiers (DAs) effectively manage parasitic capacitancesthrough artificial transmission-line structures, offering inherent broadband performance.However, conventional DAs typically consume large silicon areas due tonumerous stages and extensive interconnections, and passives.This thesis introducesincreased transconductance bandwidth with a fully-shunt peaking method in cascodeand compact inductor-based area reduction methods with decreased quality factoroptimization for distributed power amplifiers (DPA) and distributed low-noise amplifiers(DLNA). The proposed DPA achieves an average 13.75 dB gain and stableoutput power with average of 13.69 dBm across a minimum 70 GHz bandwidth.The DLNA has a noise figure below 6 dB with an average gain of 13.6 dB within thesame frequency range. Both designs, implemented in TSMC’s 65-nm bulk CMOStechnology, outperform literature in noise figure, gain, and output power.