Title :
A Low Noise Gain-Variable LNA for 802.11a WLAN
Author :
Lai, H.C. ; Lin, Z.M.
Author_Institution :
Nat. Changhua Univ. of Educ., Changhua
Abstract :
In the paper we present a 5.7 GHz gain-variable LNA. This LNA is designed in TSMC CMOS 0.18-mum technology based on an improved current-reused cascade common source topology. High gain and low power is achieved. The variable gain range is from 20.73 to 14.6 dB. The LNA achieves 20.73 dB gain, 3.08 dB noise figure, 3 dBm IIP3, and -36.32 dB input return loss at lower gain.
Keywords :
CMOS integrated circuits; low noise amplifiers; wireless LAN; 802.11 WLAN; TSMC CMOS technology; current-reused cascade common source topology; frequency 5.7 GHz; gain -36.32 dB; gain 14.6 dB to 20.73 dB; low noise gain-variable LNA; noise figure 3.08 dB; size 0.18 mum; CMOS technology; Circuits; Gain; Impedance matching; Linearity; Low-noise amplifiers; OFDM; Radio frequency; Radiofrequency amplifiers; Wireless LAN;
Conference_Titel :
Electron Devices and Solid-State Circuits, 2007. EDSSC 2007. IEEE Conference on
Conference_Location :
Tainan
Print_ISBN :
978-1-4244-0637-1
Electronic_ISBN :
978-1-4244-0637-1
DOI :
10.1109/EDSSC.2007.4450289
