Title :
Design of 1.8V 1GHz 0.18μm CMOS LNA for GPS
Author :
Liu, Huazhu ; He, Qianhua
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou
Abstract :
The low noise amplifier is the key part for front-end device of the receiver in the GPS. A 1.8 V 0.18 mum CMOS LNA for GPS applications has been designed. Two kinds of low noise amplifier (LNA) for single-end cascade structure and differential cascade structure respectively are presented in this paper. Cadence software is used to optimize the two circuits. It provides a series of good results in Noise figure, Linearity and Power dissipation. With a 1.8 V supply, the two LNAs achieve power gains of 19.5 dB and 23 dB, noise figures of 1.9 dB and 1.95 dB. Besides, the input PldB is -19.05 dBm and -14.65 dBm.
Keywords :
CMOS integrated circuits; Global Positioning System; low noise amplifiers; receivers; CMOS; Cadence software; GPS; differential cascade structure; frequency 1 GHz; low noise amplifier; noise figure; power dissipation; receiver; single-end cascade structure; size 0.18 mum; voltage 1.8 V; CMOS technology; Capacitors; Consumer electronics; Global Positioning System; Impedance; Inductors; Low-frequency noise; Low-noise amplifiers; Noise figure; Power dissipation;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.550
