2.4 Ghz discrete-time receiver without subsampling mixer

Author

Fu-Chien Huang ; Ming-Yeh Hsu ; Tsung-Hsien Lin ; Chorng-Kuang Wang

Author_Institution

Grad. Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

50

Issue

21

fYear

2014

fDate

October 9 2014

Firstpage

1549

Lastpage

1551

Abstract

A subsampling filter is proposed for a discrete-time receiver (DTR). This filter achieves signal discretisation, filtering and downconversion simultaneously. With the proposed subsampling filtering technique, the subsampling mixer in a conventional DTR is eliminated, which can reduce power, cost and noise. The first 2.4 GHz DTR prototype for Zigbee application is fabricated in a 0.18 μm CMOS process. It achieves 23 dB conversion gain, 17.6 dB noise figure and -15 dBm IIP3. Operated from a single 1 V supply, the low-noise amplifier and following filter stages consume only 3.8 mW and the total receiver power consumption is 25.6 mW.

Keywords

CMOS analogue integrated circuits; UHF filters; Zigbee; low noise amplifiers; radio receivers; CMOS process; DTR prototype; Zigbee application; cost reduction; discrete-time receiver; down-conversion; frequency 2.4 GHz; gain 23 dB; low noise amplifier; noise figure 17.6 dB; noise reduction; power 25.6 mW; power 3.8 mW; power reduction; receiver power consumption; signal discretisation; size 0.18 mum; subsampling filtering technique; voltage 1 V;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2014.1398

Filename

6926984