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Journal of Sensors
Volume 2011 (2011), Article ID 827969, 6 pages
http://dx.doi.org/10.1155/2011/827969
Research Article

Wireless Moisture Sensor Using a Microstrip Antenna

Division of Electrical Engineering and Computer Science, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan

Received 1 May 2011; Revised 21 September 2011; Accepted 23 September 2011

Academic Editor: P. Siciliano

Copyright © 2011 Tatsuo Toba and Akio Kitagawa. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. A. W. Kraszewski, Microwave Aquametry, IEEE Press, Piscataway, NJ, USA, 1996.
  2. R. Cardell-Oliver, M. Kranz, K. Smettem, and K. Mayer, “A reactive soil moisture sensor network: design and field evaluation,” International Journal of Distributed Sensor Networks, vol. 1, pp. 149–162, 2005.
  3. K. Khalid, M. M. Ghretli, Z. Abbas, and I. V. Grozescu, “Development of planar microwave moisture sensors for hevea rubber latex and oil palm fruits,” in Proceedings of the International RF and Microwave Conference (RFM '06), pp. 10–15, September 2006. View at Publisher · View at Google Scholar · View at Scopus
  4. M. N. Alam, R. H. Bhuiyan, R. A. Dougal, and M. Ali, “Concrete moisture content measurement using interdigitated near-field sensors,” IEEE Sensors Journal, vol. 10, no. 7, pp. 1243–1248, 2010. View at Publisher · View at Google Scholar · View at Scopus
  5. G. C. Topp, J. L. Davis, and A. P. Annan, “Electromagnetic determination of soil water content using TDR: I. Applications to wetting fronts and steep gradients,” Soil Science Society of America Journal, vol. 46, no. 4, pp. 672–678, 1982. View at Scopus
  6. M. P. Abegaonkar, R. N. Karekar, and R. C. Aiyer, “A microwave microstrip ring resonator as a moisture sensor for biomaterials: application to wheat grains,” Measurement Science and Technology, vol. 10, no. 3, pp. 195–200, 1999. View at Scopus
  7. H. Xing, J. Li, R. Liu, E. Oshinski, and R. Rogers, “2.4 GHz on-board parallel plate soil moisture sensor system,” in Proceedings of the Sensors for Industry Conference (Sicon '05), pp. 35–38, February 2005. View at Publisher · View at Google Scholar · View at Scopus
  8. D. M. Dobkin and S. M. Weigand, “Environmental effects on RFID tag antennas,” in Proceedings of the IEEE MTT-S International Microwave Symposium Digest, p. 4, June 2005. View at Publisher · View at Google Scholar · View at Scopus
  9. J. B. Hasted, Aqueous Dielectrics, Chapman and Hall, London, UK, 1973.
  10. H. T. Friis, “A note on a simple transmission formula,” Proceedings of the Institute of Radio Engineers, vol. 34, no. 5, pp. 254–256, 1946.
  11. P. V. Nikitin, K. V.S. Rao, S. F. Lam, V. Pillai, R. Martinez, and H. Heinrich, “Power reflection coefficient analysis for complex impedances in RFID tag design,” IEEE Transactions on Microwave Theory and Techniques, vol. 53, no. 9, pp. 2721–2725, 2005. View at Publisher · View at Google Scholar