A 5.8 GHz CMOS ASK demodulator for the China electronic toll collection system

Author

Zhu, Siheng ; Chao Guo ; Hu, Jun ; Sun, Houjun ; Lv, Xin

Author_Institution

Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China

fYear

2011

fDate

22-25 May 2011

Firstpage

264

Lastpage

266

Abstract

In this paper, a 5.8 GHz integrated CMOS amplitude shift keying (ASK) demodulator for the China electronic toll collection system (ETCS) is presented. The ASK demodulator modulates the 256 Kbps baseband signal with reference to the 5.8 GHz carrier frequency for low power dissipation. The design is implemented in a 0.18 μm CMOS process. The measurement results show that the proposed ASK demodulator can receive power as low as -38dBm with a 5.8 GHz carrier frequency, and modulation index can range from 30% to 100%. The circuit dissipates 200 μA with 1.8 V supply voltage and has a core die area of 0.17 mm².

Keywords

CMOS integrated circuits; amplitude shift keying; demodulators; CMOS ASK demodulator; CMOS amplitude shift keying demodulator; China electronic toll collection system; ETCS; current 200 muA; frequency 5.8 GHz; frequency, index; low power dissipation; modulation index; size 0.18 mum; voltage 1.8 V; Amplitude shift keying; Architecture; CMOS integrated circuits; Demodulation; Receivers; Transceivers; 5.8 GHz amplitude shift keying (ASK) demodulator; China electronic toll collection system (ETCS); low power;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Technology & Computational Electromagnetics (ICMTCE), 2011 IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-8556-7

Type

conf

DOI

10.1109/ICMTCE.2011.5915507

Filename

5915507