A 0.6-V 5.2 GHz Folded Cascode LNA with Transformer-feedback Technique for Ultra Low Power Applications

作者：Ma, Kehao^*; Wang, Chunhua; Guo, Xiaorong; Liu, Jian

来源：Frequenz, 2013, 67(11-12): 365-372.

DOI：10.1515/freq-2013-0029

• forward body bias
• transformer-feedback
• ultra low-power low-noise amplifiers
• folded cascode

This paper presents a 5.2 GHz ultra low power folded cascade low-noise amplifier at low-voltage operation. By utilizing a forward body bias and folded cascade technique, the proposed LNA can operate at a reduced supply voltage and power consumption. In addition, reactive (transformer) feed-back is adopted to further enhance the LNA gain. The proposed LNA delivers a remarkable gain of 15.3 dB with a noise figure of 0.8 dB, while consuming only 0.8 mW dc power from a 0.6-V supply voltage at 5.2 GHz, the simulated Pin-1dB and IIP3 are -22 and -10.34 dBm, respectively. The results indicate that this LNA is full suitable for the ultra low power application.

• 出版日期2013
• 单位湖南大学