A Multi-band 900MHz/1.8GHz/5.2GHz LNA for Reconfigurable Radio

Author

Dao, Vu Kien ; Bui, Quang Diep ; Park, Chul Soon

Author_Institution

Inf. & Commun. Univ. (ICU), Daejeon

fYear

2007

fDate

3-5 June 2007

Firstpage

69

Lastpage

72

Abstract

A multi-band 900 MHz/1.8 GHz/5.2 GHz low noise amplifier (LNA) which can operate at mobile band of 900 MHz and 1.8 G and WLAN band of 5.2 GHz frequency is proposed. Input matching, noise matching and narrow gain are achieved at three frequency bands by adopting a switched output load and a resistive shunt-feedback circuit. The proposed LNA is designed in TSMC 0.18 um CMOS technology with a supply voltage of 1.8 V. The LNA has gains of 14 dB, 13 dB and 16 dB and noise figures of 2.3 dB, 2.9 dB and 2.7 dB at 900 MHz, 1.8 GHz and 5.2 GHz frequency bands, respectively, while dissipating power of 7.5 mW at all frequency bands.

Keywords

CMOS analogue integrated circuits; MMIC amplifiers; UHF amplifiers; UHF integrated circuits; integrated circuit design; integrated circuit noise; low noise amplifiers; low-power electronics; software radio; CMOS technology; LNA; WLAN band; frequency 1.8 GHz; frequency 5.2 GHz; frequency 900 MHz; gain 13 dB; gain 14 dB; gain 16 dB; input impedance matching; multiband low-noise amplifier; noise figure 2.3 dB; noise figure 2.7 dB; noise figure 2.9 dB; noise matching; power 7.5 mW; power dissipation; reconfigurable radio; resistive shunt-feedback circuit; size 0.18 mum; CMOS technology; Circuit noise; Frequency; Impedance matching; Low-noise amplifiers; Radiofrequency amplifiers; Radiofrequency integrated circuits; Software radio; Switching circuits; Wireless LAN; CMOS; LNA; multi-band;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits (RFIC) Symposium, 2007 IEEE

Conference_Location

Honolulu, HI

ISSN

1529-2517

Print_ISBN

1-4244-0530-0

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2007.380835

Filename

4266383