A 2.45GHz ultra-low power quadrature front-end in 65nm CMOS

Author

Bryant, Carl ; Sjöland, Henrik

Author_Institution

Lund Univ., Lund, Sweden

fYear

2012

fDate

17-19 June 2012

Firstpage

247

Lastpage

250

Abstract

This paper presents a 2.45 GHz ultra-low power direct conversion receiver front-end, intended for applications such as medical implants and body area networks. It consists of low noise amplifier, passive quadrature mixers, voltage controlled oscillator and frequency divider. Manufactured in 65 nm CMOS it achieves 27 dB gain, 9 dB noise figure and S11 better than -14 dB, while consuming below 400 μW from a 0.8V supply. It has an in band and out of channel IIP3 of -24.5 and -21 dBm, repectively. Requiring only two inductors it occupies an area of less than 0.1 mm² excluding pads.

Keywords

CMOS integrated circuits; UHF integrated circuits; low-power electronics; radio receivers; CMOS process; body area networks; frequency 2.45 GHz; frequency divider; gain 27 dB; inductors; low noise amplifier; medical implants; noise figure 9 dB; passive quadrature mixers; size 65 nm; ultralow power direct conversion receiver front-end; ultralow power quadrature front-end receiver; voltage 0.8 V; voltage controlled oscillator; CMOS integrated circuits; Frequency measurement; Inductors; Mixers; Receivers; Voltage-controlled oscillators; CMOS; frequency dividers; low-noise amplifiers; mixers; receivers; voltage-controlled oscillators;

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.2012.6242274

Filename

6242274