Wei-Lun Ou, Yu-Kai Tsai, Po-Yen Tseng, Liang-Hung Lu
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引用次数: 5
Abstract
A 2.4-GHz dual-mode power amplifier with transistor resizing is proposed. The proposed technique keeps the conductance for optimum power-matching constant in both modes. By introducing transformers and capacitors, the 50-ohm load is matched to near-optimal impedances for size-scaling MOS transistors. Using a 0.18-pm CMOS process, the proposed PA demonstrates a PAE enhancement of 2.7×/2.3× respectively at 6.5-dB/9-dB transmitting power back-off.
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