The Effect of a Metamaterial Based Wearable Monopole Antenna on the Human Body

Year 2018, Volume: 14 Issue: 1, 93 - 97, 30.03.2018

Erkan Tetik , Gamze D. Tetik

https://doi.org/10.18466/cbayarfbe.369051

Cited By: 3

Abstract

In this study, design and characterization of a wearable monopole
antenna and metamaterial based electromagnetic band gap structure using
conductive textile was reported. The pure copper polyester taffeta fabric was
used as a conductive textile. The conductive textile based wearable antennas
have attracted considerable attention for body centric technologies due to the
ability of being integrated with clothes and easily worn. In this respect, the
reflection coefficients, radiation pattern, and surface currents for proposed
antenna were investigated and its performance was obtained. Then, we designed the
electromagnetic band gap structure (3x3 unit cell) and integrated the wearable
antenna with this structure. Finally, the specific absorption rate (SAR) values
for wearable antenna and integrated structure were analyzed. The SAR values of
wearable antenna and integrated structure were obtained as 17.4 W/kg and 0.329
W/kg, respectively. In addition, the electromagnetic band gap structure that
has 4x3 unit cell was designed and again the wearable antenna was integrated
with this 4x3 structure. Similarly, we obtained the SAR value of new integrated
structure as 0.241 W/kg. It was demonstrated that the integrated structures
have considerably favorable SAR value for human body. It can be used in many
wearable antenna applications with this low SAR value.

Keywords

Wearable Antenna, Metamaterial, Conductive Textile Materials, SAR

References

• 1. Rais, N.H.M, Soh, P.J, Malek, F, Ahmad, S, Hashim, N.B.M, Hall, P.S.A, Review of Wearable Antenna, Loughborough Antennas & Propagation Conference, Loughborough, UK, 2009, pp 225-228.
• 2. Hall, P.S, Hao, Y, Antennas and propagation for body centric communications, First European Conference on Antennas and Propagation, Nice, France, 2006.
• 3. Linz, T, Simon, E.P, Walter, H, Modeling embroidered contacts for electronics in textiles, The Journal of the Textile Institute, Taylor & Francis, 2011, 1-10.
• 4. Soh, P.J, Vandenbosch, G.A.E, Ooi, S.L, Husna, M.R.N, Wearable dual-band Sierpinski fractal PIFA using conductive fabric, Electronics Letters, 2011, 47(6), 365-367.
• 5. Zhu, S, Langley, R, Dualband wearable textile antenna on an EBG substrate, IEEE Transactions on Antenna and Propagation, 2009, 57(4), 926-935.
• 6. Bai, Q, Langley, R, Wearable EBG antenna bending, Antennas and Propagation, EuCAP-2009, 3rd European Conference, Berlin, Germany, 2009, pp 182-185.
• 7. Sankaralingam, S, Gupta, B, Use of electro-textiles for development of wibro antennas, Progress in Electromagnetics Research C, 2010, 16, 183-193.
• 8. Osman, M.A.R, Rahim, M.K.A, Samsuri, NçA, Salim H.A.M, Ali, M.F, Embroidered fully textile wearable antenna for medical monitoring applications, Progress in Electromagnetics Research, 2011, 117, 321-337.
• 9. Mantash, M, Tarot, A.C, Collardey, S, Mahdjoubi, K, Investigation of flexible textile antennas and AMC reflectors, International Journal of Antennas and Propagation, 2012, 2012, 1-10.
• 10. Klemm, M, Troester, G, Textile UWB antennas for wireless body area networks, IEEE Transactions on Antennas and Propagation, 2006, 54(11), 3192-3197.
• 11. Salonen, P, Keskialammi, M, Sydanheimo, L, A low cost 2.45 GHz photonic band gap patch antenna for wearable system, IEE 11th Intnl. Conf. On Antennas & Propagation (ICAP2001), Manchester, UK, 2001, pp 719- 723.
• 12. Salonen, P.O, Yang, F, Rahmat-Samii and Kivikoski, M, WEBGA-Wearable Electromagnetic Band-Gap Antenna, IEEE Antennas & Propagat. Int. Symposium, Sendai, Japan, 2004, pp 451-454.
• 13. Veselago, V.G, The electrodynamics of substances with simultaneously negative values of  and µ, Soviet Physics USPEKHI, 1968, 10(4), 509–514.
• 14. Dincer, F, Karaaslan, M, Colak, S, Tetik, E, Akgol, O, Altıntas, O, Sabah, C, Multi-band polarization independent cylindrical metamaterial absorber and sensor application, Modern Physics Letters B, 2016, 30(08), 1650095.
• 15. Zhang, Y, Fiddy, M.A, Covered image of superlens, Progress in Electromagnetics Research, 2013, 136, 225-238.
• 16. Chen, X, Implicit boundary conditions in transformation-optics cloaking for electromagnetic waves, Progress in Electromagnetics Research, 2011, 121, 521-534.
• 17. Unal, E, Dincer, F, Tetik, E, Karaaslan, M, Bakir, M, Sabah, C, Tunable perfect metamaterial absorber design using the golden ratio and energy harvesting and sensor applications”, Journal of Materials Science: Materials in Electronics, 2015, 26(12), 9735-9740.
• 18. Salonen, P, Rahmat-Samii, Y, Schaffrath, M, Kivikoski, M, Effect of Textile Materials on Wearable Antenna Performance: A Case Study of GPS Antennas, IEEE Antennas & Propagat. Int. Symposium, Sendai, Japan, 2004, pp 459-462.
• 19. Tetik, E, D. Tetik, G., The Effect of a Metamaterial Based Wearable Microstrip Patch Antenna on Human Body, Canadian Journal of Physics, 2017, 95(13), pp 1292-1298.
• 20. Tronquo, A, Rogier, H, Hertleer, C, Langenhove, L.V, Applying textile materials for the design of antennas for wireless body area networks, Proceedings of the European Conference on Antennas and Propagation, Nice, France, 2006.