Title :
A 2.4-GHz sub-mW CMOS current-reused receiver front-end for wireless sensor network
Author :
Song, Taeksang ; Oh, Hyoung-Seok ; Baek, Sang-Hyun ; Hong, Songcheol ; Yoon, Euisik
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
In this paper we report a 2.4 GHz low-power receiver front-end using current-reused folded-cascode scheme. Two fully integrated receiver front-ends are presented as a proof of concept. A conventional merged LNA and single-balanced (SB) mixer shows a conversion gain of 20.4 dB and a noise figure of 19 dB at 10 MHz intermediate frequency (IF), taking 500 muA bias current from 1.0 V power supply. The proposed front-end achieves a conversion gain of 30.5 dB and a noise figure of 10.2 dB at 10MHz IF with the same power consumption of 500 muW. The front-ends performances are compared with the previously reported low-power front-ends operating at similar frequency
Keywords :
CMOS integrated circuits; low noise amplifiers; low-power electronics; mixers (circuits); radio receivers; submillimetre wave integrated circuits; submillimetre wave receivers; 1.0 V; 10 MHz; 10.2 dB; 19 dB; 2.4 GHz; 20.4 dB; 30.5 dB; 500 muA; 500 muW; CMOS current-reused receiver front-end; current-reused folded-cascode scheme; low noise amplifiers; single-balanced mixer; wireless sensor network; 1f noise; Energy consumption; Frequency conversion; Frequency shift keying; Mixers; Noise figure; Performance gain; Radio frequency; Transceivers; Wireless sensor networks;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9572-7
DOI :
10.1109/RFIC.2006.1651149
