Title :
A low-noise amplifier using subthreshold operation for GPS-L1 RF receiver
Author :
Tang, Tang ; Mo, Tingting ; Chen, Dongpo
Author_Institution :
Sch. of Microelectron., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
This paper presents a low power low-noise amplifier (LNA) with subthreshold operation for Global Position System (GPS) L1-band radio frequency (RF) receiver using a 0.18 um CMOS process. An inductively degenerated cascode topology with a single ended to differential conversion using capacitive coupling compensation is applied to the LNA structure. The LNA has two tunable gain sates to support either a passive or an active antenna using a switchable resistive load. While drawing 1.07mA current from a 1.8V voltage supply, this LNA achieves a noise figure of 2.52dB and 3.7dB at the high and low gain states, respectively, a maximum voltage gain of 18.75dB, a S11 less than -10dB, and an IIP3 larger than -19.86dBm.
Keywords :
CMOS integrated circuits; Global Positioning System; low noise amplifiers; low-power electronics; radio receivers; radiofrequency integrated circuits; CMOS process; GPS L1; global position system; low power low noise amplifier; radio frequency receiver; subthreshold operation; CMOS integrated circuits; Global Positioning System; Impedance matching; Logic gates; Noise; Receivers; Transconductance; GPS; low noise amplifier (LNA); low power; subthreshold;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6056979
