A Reconfigurable DCS1800/W-CDMA LNA: Design and Implementation Issues

Author

Moreira, C.P. ; Kerherve, E. ; Jarry, P. ; Belot, D.

Author_Institution

IXL Microelectron. Lab., Talence

fYear

2006

fDate

10-15 Sept. 2006

Firstpage

1652

Lastpage

1655

Abstract

We present in this article a dual-standard dual-mode low-noise amplifier (LNA) for DCS1800/W-CDMA-FDD applications. In order to save die area compared to conventional parallel LNAs, we have used an alternative circuit configuration. It consists of sharing the most die consuming elements (inductances) in both operation standards, enabling a more compact solution. The mode and standard selection is performed through a bias scheme (MOS switches) that allows alternating between the two involved standards. The LNA die area is 1.0 times 1.2 mm² and it consumes 6.8mW (3.8mA under 1.8V), including bias circuitry

Keywords

BiCMOS integrated circuits; UHF amplifiers; UHF integrated circuits; code division multiple access; low noise amplifiers; radio receivers; 1.8 V; 3.8 mA; 6.8 mW; DCS1800 LNA; MOS switches; W-CDMA-FDD LNA; alternative circuit configuration; bias circuitry; bias scheme; dual-mode low-noise amplifier; dual-standard low noise amplifier; mode selection; noise optimization; reconfigurable LNA; standard selection; Circuit testing; Design optimization; Impedance matching; Low-noise amplifiers; Microelectronics; Microwave theory and techniques; Multiaccess communication; Noise figure; Packaging; Switches; Low-Noise Amplifier; Multimode; Multistandard; Noise Optimization; Wireless Applications;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. 36th European

Conference_Location

Manchester

Print_ISBN

2-9600551-6-0

Type

conf

DOI

10.1109/EUMC.2006.281437

Filename

4058164