Analysis and improvement for UHF RFID reading region in real environments

Zuo Lei; He Yi-Gang; Li Bing; Zhu Yan-Qing; Fang Ge-Feng

doi:10.7498/aps.61.244103

Abstract

The reading region of ultra high frequency radio-frequency identification (UHF RFID) system is affected by polarization mismatch, reader antenna height, coherent interference and so on. Based on the principles of RFID technology and ray-tracing method, a complete propagation model in real environments is derived. Utilizing recognition rate of target region (RRTR), a method of evalualing the performances of a system is presented. In order to obtain the maximization of RRTR, two solutions including tag diversity and phase switch are proposed, which combines the theories of electromagnetic propagation and coherent interference suppression. The values of RRTR under different parameters are measured in outdoor and indoor environments with a commodity hardware. The measurement results show that the values of RRTR can be enhanced by 10% and 7.6% with the two solutions respectively.

Keywords:

Authors and contacts

1.
College of Electrical and Information Engineering, Hunan University, Changsha 410082, China;
2.
School of Electrical and Automation Engineering, Hefei University of Technology, Hefei 230009, China;
3.
National Key Laboratory of National Defense Science&Technology on Electronic Test & Measurement, The 41st Research Institute of China Electronics Technology Group Corporation, Qingdao 266555, China
Funds: Project supported by the National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 50925727), the National Natural Science Foundation of China (Grant No. 60876022), the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 51107034), the National Defense Advanced Research Project (Grant No. C1120110004), and the Research Foundation of Education Bureau of Hunan Province, China (Grant No. 11C0479).

References

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[2]	Griffin J D, Durgin G D 2009 Proc. IEEE Trans. Antennas Propag. 51 11
[3]	Hou Z G, He Y G, Li B, She K, Zhu Y Q 2010 Acta Phys. Sin. 59 5606 (in Chinese) [侯周国, 何怡刚, 李兵, 佘开, 朱彦卿 2010 59 5606]
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[9]	Nikitin P V, Rao K V S, Martinez R, Lam S F 2009 IEEE Trans. Microwave Theory Technol. 57 1297
[10]	Nikitin P V, Rao K V S 2008 IEEE International Conference on RFID Las Vegas, USA, April 16-18, 2008, p277

Cited By

[1]	Marrocco G 2011 Proc. IEEE Trans. Antennas Propag. 59 1019
[2]	Griffin J D, Durgin G D 2009 Proc. IEEE Trans. Antennas Propag. 51 11
[3]	Hou Z G, He Y G, Li B, She K, Zhu Y Q 2010 Acta Phys. Sin. 59 5606 (in Chinese) [侯周国, 何怡刚, 李兵, 佘开, 朱彦卿 2010 59 5606]
[4]	Tang Z J, He Y G 2009 Acta Phys. Sin. 58 5126 (in Chinese) [唐志军, 何怡刚 2009 58 5126]
[5]	Li B, He Y G, Hou Z G, She K, Zuo L 2011 Acta Phys. Sin. 60 084202 (in Chinese) [李兵, 何怡刚, 侯周国, 佘开, 佐磊 2011 60 084202]
[6]	Marrocco G, Di Giampaolo E, Aliberti R 2009 Proc. IEEE Trans. Antennas Propag. 51 44
[7]	Abbak M, Tekin I 2009 Proc. IEEE Trans. Antennas Propag. 51 185
[8]	Feuerstein M J, Blackard K L, Rappaport T S, Seidel S Y, Xia H H 1994 IEEE Trans. Vehicular Technol. 43 487
[9]	Nikitin P V, Rao K V S, Martinez R, Lam S F 2009 IEEE Trans. Microwave Theory Technol. 57 1297
[10]	Nikitin P V, Rao K V S 2008 IEEE International Conference on RFID Las Vegas, USA, April 16-18, 2008, p277

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Catalog

Vol. 61, Issue 24 - 2012-12-20

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