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This paper represents a CMOS RF power amplifier using a current combining technique to improve the linearity of WLAN applications. This technique, based on a transformer, is composed of partially combined 2-metal layers to minimize the resistive loss induced by the transformer. To verify the feasibility of the proposed power amplifier using 180-nm RF CMOS process, we obtain a measured output power...
In this work, we propose a 24-GHz VCO using a transformer. In the mm-wave band, parasitic components of the passive device and feeding line degrade VCO performance. To reduce the undesired effects of passive devices, we replaced the transformer instead of passive devices such as the inductor or capacitor. In addition, we propose a frequency tuning technique using a gate bias instead of a typical varactor...
In this study, we propose an auxiliary power regulator (APR) for the current-shared cascade (CSC) structure of the driver stages of RF CMOS power. Although the CSC structure provides a method to reduce the power consumption at the driver stages of a differential power amplifier (PA), it is difficult to obtain optimum levels of effective supply voltage for the first and second driver stages. Additionally,...
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