A dual-band 2.1GHz/5.2GHz LNA for reconfigurable radio

Author

Xiong, Si ; Huang, Yumei ; Hong, Zhiliang

Author_Institution

State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China

fYear

2010

Firstpage

710

Lastpage

712

Abstract

A dual-band 2.1GHz/5.2GHz low noise amplifier (LNA) which can operate at mobile band of 2.1GHz and WLAN band of 5.2GHz frequency is proposed. Input matching, noise matching and narrow-band amplifying are achieved at two frequency bands by adopting a switched inductive output load and a positive-negative feedback circuit. The proposed LNA is implemented in SMIC 0.13 μm CMOS technology with a supply voltage of 1.2V. The LNA has gains of 20 dB and 14 dB and noise figures of 2.0 dB and 3.1 dB at 2.1 GHz and 5.2 GHz frequency bands, respectively, while dissipating power of 5.1 mW at the two frequency bands.

Keywords

CMOS analogue integrated circuits; MMIC amplifiers; UHF amplifiers; feedback; field effect MMIC; integrated circuit noise; low noise amplifiers; low-power electronics; mobile radio; software radio; wireless LAN; CMOS technology; WLAN band; dual-band LNA; frequency 2.1 GHz; frequency 5.2 GHz; input matching; low noise amplifier; mobile radio; narrow-band amplification; noise matching; positive-negative feedback; reconfigurable radio; size 0.13 mum; CMOS integrated circuits; Dual band; Gain; Impedance matching; Low-noise amplifiers; Noise; Noise measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-5797-7

Type

conf

DOI

10.1109/ICSICT.2010.5667383

Filename

5667383