A Tuneable CMOS Pulse Generator for Detecting the Cracks in Concrete Walls

Author

Rao, T. Rama ; Dutta, Arin ; Singh, S.G. ; De, Avik ; Sahoo, B.D.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Hyderabad, India

fYear

2012

fDate

19-21 Aug. 2012

Firstpage

126

Lastpage

130

Abstract

A CMOS impulse generator was designed as a part of Ultra Wide Band (UWB) wireless communication system. An input square wave signal is delayed by using differential pairs and then XORed with the input signal to produce short duration pulses. An RLC circuit works as a Band Pass Filter (BPF) used to generate Gaussian monopulse from the obtained short duration pulses. It operates with center frequency at 4.782 GHz and -3dB band width of 20.36 GHz. The output peak to peak amplitude of the signal is 44.11 mV with pulse duration of 300 picoseconds. The UWB pulse generator has been simulated in 0.18μm CMOS technology.

Keywords

CMOS analogue integrated circuits; Gaussian processes; band-pass filters; concrete; condition monitoring; crack detection; microwave filters; microwave generation; pulse generators; structural engineering; ultra wideband communication; walls; BPF; Gaussian monopulse generation; RLC circuit; UWB pulse generator; UWB wireless communication system; XORed; band-pass filter; concrete walls; crack detection; differential pairs; frequency 20.36 GHz; frequency 4.782 GHz; gain -3 dB; input square wave signal; size 0.18 mum; time 300 ps; tuneable CMOS pulse generator; ultra wide band wireless communication system; voltage 44.11 mV; Acoustics; Band pass filters; CMOS integrated circuits; Delay; Generators; Pulse generation; RLC circuits; BPF; CMOS; RLC; UWB;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI (ISVLSI), 2012 IEEE Computer Society Annual Symposium on

Conference_Location

Amherst, MA

ISSN

2159-3469

Print_ISBN

978-1-4673-2234-8

Type

conf

DOI

10.1109/ISVLSI.2012.20

Filename

6296460