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Journal of Environmental Nanotechnology

(A Quarterly Peer-reviewed and Refereed International Journal)
ISSN(Print):2279-07 48; ISSN(Online):2319-5541
CODEN:JENOE2

Impulse Modelled Response of a 300 MHz ST-Quartz SAW Device For Sensor Specific Applications

Abstract

In recent years a big spurt has been observed in the usage and applications of Surface Acoustic Wave(SAW) devices as sensors not only for the detection of physical and chemical quantities but also as environmental biosensors for detecting volatiles, toxic agents, explosives and narcotics. The design of such sensors assumes importance as the technology enables reproducibility, reliability, portability and cost-effective sensing in real time. This paper presents the frequency response of a 300 MHz ST-Quartz SAW delay line device fabricated with uniform IDTs. Based on the first order Impulse response model and employing a unique custom made MATLAB algorithm, the device is accurately modelled. The results obtained are analyzed to ultimately help in the effective design, development and modelling of such devices as application specific sensors. Comparison of modelled and simulated results with experimental device response shows good agreement.

Article Type: Orginal Research Article

Corresponding Author: Haresh M.Pandya 1  

Email: haresh.pandya@rediffmail.com

Haresh M.Pandya 1*,  M.U. Sharma 2,  A.T. Nimal 3,  K.B. Rajesh 4.  

1, 4. Department of Physics, Chikkanna Government Arts College, Tirupur, TN, India.

2. Solid State Physics Laboratory (DRDO), Timarpur, Delhi, India.

3. Solid State Physics Laboratory (DRDO), Timarpur, Delhi, India.

J.Environ. Nanotechnol., Volume 2, (2013) pp. 15-21
ISSN: 2279-0748 eISSN: 2319-5541
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