Modified planar sensor for measuring dielectric constant of liquid materials

M. Karami; P. Rezaei; S. Kiani; R.A. Sadeghzadeh

Modified planar sensor for measuring dielectric constant of liquid materials

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Author(s): M. Karami¹ ; P. Rezaei¹ ; S. Kiani¹ ; R.A. Sadeghzadeh²
- Affiliations: 1: Department of Electrical and Computer Engineering , Semnan University , Semnan , Iran ;
  2: Faculty of Electrical and Computer Engineering , K.N. Toosi University of Technology , Tehran , Iran
Source: Volume 53, Issue 19, 14 September 2017, p. 1300 – 1302
DOI: 10.1049/el.2017.2481 , Print ISSN 0013-5194, Online ISSN 1350-911X

Received 26/06/2017, Published 21/08/2017

A planar U-shaped resonator for measuring relative permittivity of the liquid mediums is developed. To improve the sensitivity of the proposed sensor, gap sections, coupled lines and central ring resonators (RRs) are used to enhance electric fields interact with liquid under test (LUT). Further to increase the resonance sharpness, a tapered double-sided spiral split RR is presented. As the permittivity of the LUT is increased from 26 to 79, the measured resonance frequency of the described sensor is varied in the 166.4–287.5 MHz range. The developed sensor exhibits an improvement in sensitivity of about 45% compared with the other work.

References

1. 1)
  - 8. Ebrahimi, A., Withayachumnankul, W., Al-Sarawi, S., et al: ‘Sensitivity metamaterial-inspired sensor for microfluidic dielectric characterization’, Sens. J., 2014, 14, (5), pp. 1345–1351 (doi: 10.1109/JSEN.2013.2295312).
2. 2)
  - 3. Saghati, A.P., Batra, J.S., Kameoka, J., et al: ‘A metamaterial-inspired wideband microwave interferometry sensor for dielectric spectroscopy of liquid chemicals’, Trans. Microw. Theory Tech., 2016, PP, (99), pp. 1–14.
3. 3)
  - 2. Chen, D., Wang, J.J., Xu, Y., et al: ‘Film bulk acoustic biosensor for detection of trace pesticide residues in agricultural products’, Electron. Lett., 2013, 49, (15), pp. 924–925 (doi: 10.1049/el.2013.1803).
4. 4)
  - 4. Abduljabar, A.A., Rowe, D.J., Porch, A., et al: ‘Novel microwave microfluidic sensor using a microstrip split-ring resonator’, Trans. Microw. Theory Tech., 2014, 62, (3), pp. 679–688 (doi: 10.1109/TMTT.2014.2300066).
5. 5)
  - 5. Benkhaoua, L., Benhabiles, M.T., Riabi, M.L.: ‘A compact miniature sensor based on a microstrip taper coupled to a metamaterial resonator’. European Microwave Conf., Paris, France, December 2015, pp. 1057–1060.
6. 6)
  - 1. Byford, J.A., Park, K.Y., Chahal, P.: ‘Metamaterial inspired periodic structure used for microfluidic sensing’. IEEE ECTC, San Diego, USA, May 2015, pp. 1997–2002.
7. 7)
  - 9. Benkhaoua, L., Benhabiles, M.T., Mouissat, S., et al: ‘Miniaturized quasi-lumped resonator for dielectric characterization of liquid mixtures’, Sens. J., 2016, 16, (6), pp. 1603–1610 (doi: 10.1109/JSEN.2015.2504601).
8. 8)
  - 6. Lee, H.J., Lee, H.S., Yoo, K.H., et al: ‘DNA sensing based on single element planar double split-ring resonator’. IEEE MTT-S, Boston, MA, USA, July 2009, pp. 1685–1688.
9. 9)
  - 7. Withayachumnankul, W., Jaruwongrungsee, K., Fumeaux, A.C., et al: ‘Metamaterial-based microfluidic sensor for dielectric characterization’, Sens. Actuators A, Phys., 2013, 189, pp. 233–237 (doi: 10.1016/j.sna.2012.10.027).

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