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

fYear

2011

fDate

16-18 Sept. 2011

Firstpage

4257

Lastpage

4260

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Control Engineering (ICECE), 2011 International Conference on

Conference_Location

Yichang

Print_ISBN

978-1-4244-8162-0

Type

conf

DOI

10.1109/ICECENG.2011.6056979

Filename

6056979