Title :
A Low-Power Low-Noise Amplifier for K-Band Applications
Author :
Wei, Yu-Lin ; Hsu, Shawn S H ; Jin, Jun-De
Author_Institution :
Dept. of Electr. Eng. & Inst. of Electron. Eng., Nat. Tsing Hua Univ., Hsinchu
Abstract :
This study presents a high performance K-band low noise amplifier. By utilizing transformer feedback at the input stage, an excellent noise figure (NF) of 4.3 dB is obtained at 22 GHz. With the current-reused technique between the two stages, the amplifier achieves a maximum power gain of 10.1 dB under a supply voltage of 1.8 V and a power consumption of only 7.2 mW. The proposed LNA has comparable NF and gain, while it can operate under the lowest power among the published works in 0.18 mum CMOS technology for K-band applications.
Keywords :
CMOS integrated circuits; MMIC; MMIC amplifiers; circuit feedback; circuit noise; low noise amplifiers; transformers; CMOS technology; K-band low noise amplifier; LNA; current-reused technique; frequency 22 GHz; gain 10.1 dB; noise figure; noise figure 4.3 dB; power 7.2 mW; power gain; transformer feedback; voltage 1.8 V; Current-reused; low noise amplifier (LNA); noise figure (NF); transformer feedback;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.2011340
