Title :
A 1.2V, 1.8 GHz CMOS two-stage LNA with common-gate amplifier as an input stage
Author :
Siu-Kei Tang ; Cheong-Fat Chan ; Chiu-Sing Choy ; Kong-Pang Pun
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, China
Abstract :
This paper presents a 1.2V CMOS 2-stage low-noise amplifier (LNA) operating at 1.8 GHz. The amplifier can provide a power gain of 17.4 dB with a low noise figure of about 1 dB. The input and output reflection coefficient (S11 and S22) are -6.4 and -31.8 dB, respectively. In this circuit, common-gate amplifier with noise matching is employed as the input stage to achieve this low noise figure. Moreover, inter-stage matching technique is introduced in the design to give enough power gain for signal amplification.
Keywords :
CMOS integrated circuits; amplifiers; integrated circuit design; 1 dB; 1.2 V; 1.8 GHz; 17.4 dB; CMOS; common-gate amplifier; interstage matching technique; low noise figure; low-noise amplifier; noise matching; reflection coefficient; signal amplification; two-stage LNA;
Conference_Titel :
ASIC, 2003. Proceedings. 5th International Conference on
Print_ISBN :
0-7803-7889-X
DOI :
10.1109/ICASIC.2003.1277390
