Wireless Personal Communications

, Volume 97, Issue 3, pp 3293–3300 | Cite as

Low-Profile Air-Filled Antenna for Next Generation Wireless Systems

  • Naser Ojaroudi ParchinEmail author


In this study, a novel design of insensitive antenna with improved radiation performance is designed and investigated. The antenna exhibits excellent performance in terms of impedance-matching, radiation and total efficiencies, even though it is designed and fabricated using high loss substrate (FR) with compact dimension. An L-shaped metal-ring resonator has been used as a main resonator of the antenna to operate at 18.5 GHz. In order to improve the antenna performance, a part of substrate with L-shaped configuration has been removed and a metal ring structure is inserted. By using this technique, we can improve the efficiency characteristic of the antenna and eliminate the effect of high-loss FR-4 substrate. The center frequency of the designed antenna can be controlled by adjusting the values of the antenna parameters. Since the main substrate of the resonator is the air, the antenna is insensitive for different types of antenna substrates. It has the return loss characteristic less than −10 dB in the frequency range of 17.5–19.5 GHz (more than 10% fractional bandwidth). The antenna has a very compact size with good radiation behavior and could be used in phased array antennas for next generation systems.


Insensitive antenna Low-cost substrate Metal-ring resonator 


  1. 1.
    Roh, W., et al. (2014). Millimeter-wave beamforming as an enabling technology for 5G cellular communications: Theoretical feasibility and prototype results. IEEE Communications Magazine, 52, 106–113.CrossRefGoogle Scholar
  2. 2.
    Rappaport, T. S., Gutierrez, F., Ben-Dor, E., Murdock, J. N., Qaio, Y., & Tamir, J. I. (2013). Broadband millimeter-wave propagation measurements and models using adaptive-beam antennas for outdoor urban cellular communications. IEEE Transactions on Antennas and Propagation, 61, 1850–1859.CrossRefGoogle Scholar
  3. 3.
    Gupta, P. (2013). Evolvement of mobile generations: 1G–5G. International Journal for Technological Research in Engineering, 1, 152–157.Google Scholar
  4. 4.
    Liu, D., Pfeiffer, U., Grzyb, J., & Gaucher, B. (2009). Advanced millimeter-wave technologies. Hoboken: Wiley.CrossRefGoogle Scholar
  5. 5.
    Hong, W., Baek, K., Lee, Y., & Kim, Y. G. (2014). Design and analysis of a low-profile 28 GHz beam steering antenna solution for future 5G cellular applications. In IEEE international microwave symposium, 1–6 June 2014, Tampa Bay, FL.Google Scholar
  6. 6.
    Puttaswamy, P., Murthy, P. S. K., & Thomas, B. A. (2014). Analysis of loss tangent effect on microstrip antenna gain. International Journal of Applied Sciences and Engineering Research, 3, 1102–1108.Google Scholar
  7. 7.
    CST. (2014). Microwave Studio. ver.2014, CST Framingham, MA.Google Scholar
  8. 8.
    Daigle, B. (1996). Printed circuit board material and design considerations for wireless applications. In 46th Electronic components and technology conference (pp. 354–357). Orlando, FL.Google Scholar
  9. 9.
    Salman, J. W., Ameen, M. M., & Hassan, S. O. (2006). Effects of the loss tangent, dielectric substrate permittivity and thickness on the performance of circular microstrip antennas. Journal of Engineering and Development, 10(1), 1–13.Google Scholar
  10. 10.
    Salokhe, B. T., & Mali, S. N. (2014). Effect of substrate material variations on RMSA, CMSA and NLMSA. International Journal of Advanced Research in Electrical, Electronics and Instrumentation, Engineering, 3, 14009–14015.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Antennas, Propagation, and Radio Networking (APNet) Section, Department of Electronic Systems, Faculty of Engineering and ScienceAalborg UniversityAalborgDenmark

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