A 2–11 GHz reconfigurable multi-mode LNA in 0.13µm CMOS

Author

Yu, Xiaohua ; Neihart, Nathan M.

Author_Institution

Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA

fYear

2012

fDate

17-19 June 2012

Firstpage

475

Lastpage

478

Abstract

This paper presents a reconfigurable multimode LNA capable of single band, concurrent dual-band, and ultra-wideband operation. The multi-mode operation is realized by incorporating a switched multi-tap transformer into the input matching network of an inductively degenerated common source amplifier. The proposed LNA achieves single band matching at 2.8 GHz, 3.3 GHz, and 4.6 GHz; concurrent dual-band matching at 2.05 GHz and 5.65 GHz; and ultra-wideband matching from 4.3 GHz to 10.8 GHz. The power dissipation is 6.4 mW from a 1.2 V supply. The chip was fabricated in 0.13μm CMOS and occupies an area of 1.04 × 0.7 mm².

Keywords

CMOS analogue integrated circuits; UHF amplifiers; low noise amplifiers; microwave amplifiers; microwave integrated circuits; transformers; wideband amplifiers; CMOS process; concurrent dual-band operation; frequency 2 GHz to 11 GHz; inductively degenerated common source amplifier; input matching network; power 6.4 mW; power dissipation; reconfigurable multimode LNA; single band operation; size 0.13 mum; switched multitap transformer; ultrawideband operation; voltage 1.2 V; CMOS integrated circuits; Dual band; Gain; Impedance matching; Noise measurement; Ultra wideband technology; Wideband; Dual band; impedance matching; low-noise amplifier; narrowband; transformer; wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium (RFIC), 2012 IEEE

Conference_Location

Montreal, QC

ISSN

1529-2517

Print_ISBN

978-1-4673-0413-9

Electronic_ISBN

1529-2517

Type

conf

DOI

10.1109/RFIC.2012.6242325

Filename

6242325