Title :
Time-constant compensated LNA for ultra-wideband receiver
Author :
Chen, Chun-Chieh ; Huang, Zhe-Yang ; Huang, Che-Cheng ; Lu, Nan-Ku
Author_Institution :
Dept. of Electron. Eng., Chung Yuan Christian Univ., Chung-li, Taiwan
Abstract :
A low-noise amplifier (LNA) with time-constant compensation to extend the bandwidth is designed for ultra-wideband (UWB) system. The design consists of two LC-tank cascode amplifier and one output buffer and is fabricated in 0.18 μm RF CMOS process. The LNA gives 13.9 dB gain and 6.8 GHz 3 dB bandwidth (3.8-10.6 GHz) while consuming 33.6 mW through a 1.8 V supply. Over the 4-10 GHz frequency band, a minimum noise figure of 5.6 dB and input return loss lower than -9.6dB have been achieved.
Keywords :
CMOS integrated circuits; MMIC amplifiers; low noise amplifiers; radio receivers; ultra wideband communication; 1.8 V; 13.9 dB; 3.8 to 10.6 GHz; 33.6 mW; LC-tank cascode amplifier; LNA; RF CMOS process; UWB; low-noise amplifier; time-constant compensated amplifier; ultra-wideband receiver; Bandwidth; Broadband amplifiers; CMOS process; Impedance matching; Low-noise amplifiers; Narrowband; Noise figure; Radio frequency; Radiofrequency amplifiers; Ultra wideband technology;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2005. ISPACS 2005. Proceedings of 2005 International Symposium on
Print_ISBN :
0-7803-9266-3
DOI :
10.1109/ISPACS.2005.1595471
