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Near-Field Focused Folded Transmitarray Antenna for Medical Applications

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Abstract

A near-field focused folded transmitarray antenna is proposed at 2.45 GHz for medical applications. The folded construction introduces compact design and low fabrication cost for the transmitarray. Also, the near-field focusing technique introduces the same far-field pattern in the transmitarray near-field which introduces more compactness in the design. The transmitarray consists of a feeding horn antenna embedded centrally in the transmitarray and a perfect electric conductor plate with the same size acts as a reflector. The radiation from the feeding horn is reflected by the plate toward the transmitarray. The unit cell of the transmitarray is a square dielectric box with four identical circular holes designed for 320° transmission coefficient phase variation with nearly −3 dB coefficient magnitude. The radiation characteristics of the unfolded and folded transmitarray are analyzed using the finite integral technique. Near-field focused folded transmitarray is designed. The focal plane is very close to the near edge of the Fresnel region for medical applications. The normalized power density distribution on a part of the human leg placed in front of the transmitarray is investigated.

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References

  1. Yurduseven, O., & Yurduseven, O. (2011). Compact parabolic reflector antenna design with cosecant-squared radiation pattern. Microwaves, radar and remote sensing symposium, August 25–27, Kiev, Ukraine (pp. 382–385).

  2. Rebeiz, G. M., Koh, K. J., Yu, T., Kang, D. Kim, C. Y., Atesal, Y., et al. (2010). Highly dense microwave and millimeterwave phased array T/R modules and butler matrices using CMOS and SiGe RFICs. IEEE international symposium on, phased array systems and technology (ARRAY), Boston, Massachusetts, USA (pp. 245–249).

  3. Gaber, S. M. (2013). Analysis and design of reflectarrays/transmitarrays antennas, Ph.D Thesis, Faculty of Electronic Engineering, Menoufiya University, Menouf, Egypt.

  4. Zainud-Deen, S. H., Hassen, W. M., Malhat, H. A., & Awadalla, K. H. (2015). Radiation characteristics enhancement of dielectric resonator antenna using solid/discrete dielectric lens. Advanced Electromagnetics, 4(1), 1–8.

    Article  Google Scholar 

  5. Pilz, D., & Menzel, W. (1998). Folded reflectarray antenna. Electronics Letters, 34, 832–833.

    Article  Google Scholar 

  6. Menzel, W., & Kessler, D. (2009). A folded reflectarray antenna for 2D scanning. IEEE German microwave conference, Munich, Germany (pp. 1–4).

  7. Zornoza, J. A., Leberer, R., Encinar, J. A., & Menzel, W. (2006). Folded multilayer microstrip reflectarray with shaped pattern. IEEE Transactions on Antennas and Propagation, 54(2), 501–518.

    Article  Google Scholar 

  8. Menzel, W., Pilz, D., & Al-Tikriti, M. (2002). Millimeter-wave folded reflector antenna with high gain, low loss, and low profile. IEEE Antennas and Propagation Magazine, 44, 24–29.

    Article  Google Scholar 

  9. Dieter, S., Feil, P., & Menzel, W. (2011). Folded reflectarray antenna using a modified polarization grid for beam-steering. Proceedings of the 5th European conference on antennas and propagation (EUCAP), Rome (pp. 1400–1403).

  10. Zeitler, A., Lanteri, J., Pichot, C., Migliaccio, C., Feil, P., & Menzel, W. (2010). Folded reflectarrays with shaped beam pattern for foreign object debris detection on runways. IEEE Transactions on Antennas and Propagation, 58(9), 3065–3068.

    Article  Google Scholar 

  11. Karimkashi, S., & Kishk, A. A. (2008). A new fresnel zone antenna with beam focused in the fresnel region. Proceedings of XXIXth general assembly of the international union of radio science, Chicago, IL, USA.

  12. Buffi, A., Nepa, P., & Manara, G. (2012). Design criteria for near-field-focused planar arrays. IEEE Antennas and Propagation Magazine, 54(1), 40–50.

    Article  Google Scholar 

  13. Bogosanovic, M., & Williamson, A. G. (2007). Microstrip antenna array with a beam focused in the near-field zone for application in noncontact microwave industrial inspection. IEEE Transactions on Instrumentation and Measurement, 56(6), 2186–2195.

    Article  Google Scholar 

  14. Stephan, K. D., Mead, J. B., Pozar, D. M., Wang, L., & Pearce, J. A. (2007). A near field focused microstrip array for a radiometric temperature sensor. IEEE Transactions on Antennas and Propagation, 55(4), 1199–1203.

    Article  Google Scholar 

  15. Buffi, A. Serra, A. Nepa, P., Manara, G., & Luise, M. (2009). Near field focused microstrip arrays for gate access control systems. IEEE antennas and propagatio. Society international symp., APSURSI’09, Charleston, SC (pp. 1–4).

  16. Siragusa, R., Lemaitre-Auger, P., Tedjini, S. (2009). Near field focusing circular microstrip antenna array for RFID applications. IEEE antennas and propag. Society international symp., APSURSI’09, Charleston, SC (pp. 1–4).

  17. Siragusa, R., Lemaître-Auger, P., & Tedjini, S. (2011). Tunable near-field focused circular phase-array antenna for 5.8 GHz RFID applications. IEEE Antennas and Wireless Propag. Letters, 10, 33–36.

    Article  Google Scholar 

  18. Shrestha, B., Elsherbeni, A., & Ukkonen, L. (2011). UHF RFID reader antenna for near-field and far-field operations. IEEE Antennas and Wireless Propagation Letters, 10, 1274–1277.

    Article  Google Scholar 

  19. Zainud-Deen, S. H., Malhat, H. A., & Awadalla, K. H. (2011). 8 × 8 near-field focused circularly polarized cylindrical DRA array for RFID applications. Electrical and Electronic Engineering, 1, 42–48.

    Article  Google Scholar 

  20. Zainud-Deen, S. H., Gaber, S. M., Malhat, H. A., & Awadalla, K. H. (2012). Multilayer dielectric resonator antenna transmitarray for near-field and far-field fixed RFID reader. Progress in Electromagnetics Research C, 27, 129–142.

    Article  Google Scholar 

  21. Buffi, A., Serra, A. A., Nepa, P., Chou, H.-T., & Manara, G. (2010). A focused planar microstrip array for 2.4 GHz RFID readers. IEEE Transactions on Antennas and Propagation, 58(5), 1536–1544.

    Article  Google Scholar 

  22. Tofigh, F., Nourinia, J., Azarmanesh, M. N., & Khazaei, K. M. (2014). Near-field focused array microstrip planar antenna for medical applications. IEEE Antennas and Wireless Propag. Letters, 13, 951–954.

    Article  Google Scholar 

  23. Adanel, Y., Wongl, M., Dale’,C., & Wiartl, J. (2004). Near field power density characterization of radio base station antennas using spherical harmonics optimization techniques. European conference on wireless technology, Amsterdam, The Netherlands (pp. 121–124).

  24. Hansen, R. C. (1985). Focal region characteristics of focused array antennas. IEEE Transactions on Antennas and Propagation, 33(12), 1328–1337.

    Article  Google Scholar 

  25. CST—Computer Simulation Technology. (2014). www.cst.com/Content/Products/MWS/Overview.aspx.

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Authors and Affiliations

  1. Faculty of Electronic Engineering, Menoufia University, Menouf, Egypt

    S. H. Zainud-Deen & H. A. Malhat

  2. Electronics Research Institute, Qism El-Nozha, Egypt

    W. M. Hassan

Authors
  1. S. H. Zainud-Deen
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  2. W. M. Hassan
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  3. H. A. Malhat
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Correspondence to H. A. Malhat.

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Zainud-Deen, S.H., Hassan, W.M. & Malhat, H.A. Near-Field Focused Folded Transmitarray Antenna for Medical Applications. Wireless Pers Commun 96, 4885–4894 (2017). https://doi.org/10.1007/s11277-017-4433-7

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  • DOI: https://doi.org/10.1007/s11277-017-4433-7

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