NDLI: High-speed data acquisition of the reader of the SAW RFID system

Content Provider	IET Digital Library
Author	Chen, Zhijun Jia, Hao Chen, Tao Wang, Xinchen Guo, Jiajia Cai, Pinggen
Abstract	The measurement of the echo time delays and phases of the surface acoustic wave (SAW) tag by the corresponding reader should be more accurate with the increase of the coding capacity, and the design of the high-speed data acquisition module (DAM) is the key factor for the improvement of the reader performance. Aiming at the large capacity SAW tag, which combines pulse time delay and phase coding, the radio-frequency (RF) band-pass sampling and digital quadrature demodulation scheme is utilised for the reader design. The design of the high-speed DAM includes the analysis, calculation and determination of the sampling frequency, the sampling clock design with cascaded phase-locked loop structure and the driver circuit design etc. Finally, the SAW RFID system is established, and the time delays and phases of the tag reflectors are tested. The measurement results show the effectiveness of the high-speed DAM of the reader.
Starting Page	1163
Ending Page	1169
Page Count	7
ISSN	17518822
Volume Number	13
e-ISSN	17518830
Issue Number	Issue 8, Oct (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-smt/13/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2019.0189
Journal	IET Science, Measurement & Technology
Publisher Date	2019-07-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Capacity SAW Tag Cascaded Phase-locked Loop Structure Clocks Code Coding Capacity Data Acquisition Demodulation Digital Quadrature Demodulation Scheme Driver Circuit Design Echo Time Delay Measurement High-speed DAM Design High-speed Data Acquisition Module Phase Coding Pulse Time Delay Quadrature Amplitude Modulation Radio-frequency Band-pass Sampling Radiofrequency Identification Reader Design Reader Performance RFID System Sampling Clock Design Sampling Frequency Determination SAW RF Identification System Signal Processing And Detection Signal Sampling Surface Acoustic Wave Signal Processing Surface Acoustic Wave Tag Tag Reflectors
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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