Title :
A 2V CMOS low noise amplifier with tunable image filtering
Author :
Weng, Ro-Min ; Lin, Pei-Shan
Author_Institution :
Dept. of Electr. Eng., Nat. Dong Hwa Univ., Hualien
Abstract :
A CMOS fully integrated low noise amplifier (LNA) with tunable image filtering for RF applications is presented using tsmc 0.35mum CMOS process. The LNA is designed to operate at 2.4GHz with intermediate frequency (IF) of 300MHz. The image filtering circuit can reject the unwanted image signals without achieving high Q value of an active inductor. With 2V supply voltage, the circuit exhibits gain of 17.7dB, S11 of -22.2dB, noise figure of 4.7dB and power dissipation of 22.35mW. The tuning rang of the image frequency is from 2.9 GHz to 3.1 GHz with image-rejection of 78.6dB
Keywords :
CMOS analogue integrated circuits; UHF amplifiers; filtering theory; image processing; 17.7 dB; 2 V; 2.4 GHz; 2.9 to 3.1 GHz; 22.35 mW; 300 MHz; 4.7 dB; CMOS fully integrated low noise amplifier; RF applications; active inductor; image filtering circuit; image rejection; noise figure; power dissipation; tunable image filtering; Active inductors; CMOS process; Filtering; Low-noise amplifiers; Noise figure; Power dissipation; Radio frequency; Radiofrequency amplifiers; Tunable circuits and devices; Voltage;
Conference_Titel :
Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on
Conference_Location :
Tainan
Print_ISBN :
0-7803-8660-4
DOI :
10.1109/APCCAS.2004.1412752
