This paper presents an effective optimization procedure to calibrate the deviations of beam
patterns radiated from phased arrays of antennas. The pattern distortions occur from the …

This paper presents a process-variation tolerant, continuously channel-adaptive wireless
front-end architecture and related adaptation algorithms to allow a radio-frequency …

Power amplifier (PA) behavior and distortion analysis requires the characterization of the PA
nonlinear static input-output relationship, usually evaluated through the input amplitude to …

Short-channel Gallium Nitride (GaN) high-electron-mobility transistors (HEMTs) often utilize
T-shape gates due to their large gate-line cross-sectional area and subsequent fMAX …

针对星载微波功率放大器AM PM 转移系数指标缺乏考核方法的问题, 文章根据多载波非线性
工作原理, 通过输入放大器双载波信号, 调整输入信号幅度变化, 分析输出信号相位变化情况的 …

Power amplifier (PA) non‐linearity is extremely significant for 60 GHz millimetre‐wave
communications, which distorts signal constellation seriously. In dealing with this problem …

This thesis focuses on the design and analysis of efficiency-enhancement microwave power
amplifiers using the Doherty technique. The Doherty amplifier has been widely adopted in …

This paper presents a calibration procedure for the phased array antennas to radiate
desired directional beam. The technique implements the genetic algorithm within the …

We define the nonlinear dynamic phenomenon of AM to PM distortion and discuss different
candidate mechanisms. Qualitative descriptions of this from of distortion are turned into …

In this paper, a novel built-in tuning technique to compensate for process variability-induced
imperfections in RF circuits is proposed. The yield improvement methodology proposed is a …