Title :
A low power CMOS low noise amplifier for ultra-wideband wireless applications
Author :
Wu, Chang-Ching ; Chou, Mei-Fen ; Wuen, Wen-Shen ; Wen, Kuei-Ann
Author_Institution :
Inst. of Electron., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
A CMOS low noise amplifier (LNA) for low-power ultra-wideband (UWB) wireless applications is presented. To achieve low power consumption and wide operating bandwidth, the proposed LNA employing a stagger tuning technique consists of two stacked common-source stages with different resonance frequencies. This work is implemented in 0.18-μm CMOS process and shows a 2.6-9.2-GHz bandwidth. The amplifier provides a maximum forward gain (S21) of 10.9 dB while drawing 7.1 mW from a 1.8-V supply. A noise figure as low as 3.5 dB and an IIP3 of -5.1 dBm have been demonstrated. The design optimization for the power-constrained stacked amplifiers in wide bandwidth applications is also presented.
Keywords :
CMOS analogue integrated circuits; MMIC amplifiers; circuit optimisation; circuit tuning; integrated circuit design; integrated circuit noise; low-power electronics; power consumption; random noise; ultra wideband communication; wideband amplifiers; 0.18 micron; 1.8 V; 10.9 dB; 2.6 to 9.2 GHz; 3.5 dB; 7.1 mW; UWB wireless applications; low power CMOS low noise amplifier; power consumption; resonance frequencies; stacked common-source stages; stagger tuning technique; ultra-wideband wireless applications; wide operating bandwidth; Bandwidth; CMOS process; Design optimization; Energy consumption; Low-noise amplifiers; Noise figure; Resonance; Resonant frequency; Tuning; Ultra wideband technology; Low noise amplifier; low power; stagger tuning technique; ultra-wideband;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465772
