Low-Power Quadrature Receivers for ZigBee (IEEE 802.15.4) Applications

Author

Tedeschi, Marika ; Liscidini, Antonio ; Castello, Rinaldo

Author_Institution

Dept. of Electron., Univ. of Pavia, Pavia, Italy

Volume

45

Issue

9

fYear

2010

Firstpage

1710

Lastpage

1719

Abstract

Two very compact and low power quadrature receivers for ZigBee applications are presented. Area and power savings are obtained through both current reuse and oscillator tank sharing between the I and Q paths. Since this choice can cause I and Q amplitude/phase mismatches, the conversion gain is analyzed and a technique to minimize these errors is implemented. Moreover, since using a single tank makes quadrature generation at the local oscillator level costly and power-hungry, two alternative quadrature generation techniques in the RF path are proposed, together with the corresponding input matching strategies.

Keywords

CMOS integrated circuits; low noise amplifiers; personal area networks; radio receivers; CMOS receiver prototypes; IEEE 802.15.4; LC tank; LNA; ZigBee applications; area savings; base band variable gain complex filter; channel selection; current reuse; high quality factor bond-wire inductors; image rejection; integrated inductor; local oscillator; low-IF architecture; low-power quadrature receivers; oscillator tank sharing; power savings; quadrature generation techniques; self-oscillating mixer; Impedance; Inductors; Mixers; Oscillators; Radio frequency; Receivers; Zigbee; Current reuse; LC-tank oscillator; RF receiver; ZigBee receiver; low power; low voltage; low-IF architecture; self-oscillating mixer (SOM);

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/JSSC.2010.2053861

Filename

5556411