Designing and Simulation of S-Shaped Dielectric Resonator Antenna with Air Gap

Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 732)

Abstract

Different results and effect on resonance frequency due to “air gap” present between DRA and ground are presented in this paper. This structure is inspired by rectangular DRA as rectangular DRA provides two aspect ratios. The proposed structure is a miniaturized, low-profile antenna having bandwidth of 4.1 GHz (5.8–9.9 GHz) and resonant frequency is 7.31 GHz. Simulation is done using CST Microwave Studio Suite-10, showing proposed structure has high radiation efficiency, improved gain of 5.735 dB with VSWR 1.18 at resonant frequency. Proposed antenna is excited using micro-strip line having width of only 4 mm. An air gap is introduced between S-shaped DRA and ground, and results are compared when air gap is removed (micro-strip is inserted into DRA). Proposed structure is investigated and examined at different parameters ensuring that proposed antenna is a low profile and is a good candidate for wireless systems like WLAN, WiMAX, 4G systems, and some wireless radio system.

Keywords

Aspect ratio Dielectric resonator antenna (DRA) Radiation efficiency Impedance bandwidth (IBW) VSWR 

References

  1. 1.
    Kumar, J., Gupta, N.: Performance analysis of dielectric resonator antennas. Wirel. Pers. Commun. 75, 1029–1049 (2014)CrossRefGoogle Scholar
  2. 2.
    Luk, K.M., Leung, K.W.: Dielectric Resonator Antennas. Baldock England, Res. Studies Press (2003)Google Scholar
  3. 3.
    Petosa, A.: Dielectric resonator antenna. In: Handbook. Artech House, Norwood, MA, USA (2007)Google Scholar
  4. 4.
    Mukherjee, B., Patel, P., Mukherjee, J.: Hemispherical dielectric resonator antenna based on Apollonian gasket of circles—a fractal approach. IEEE Trans. Antennas Propag. 62(1), 40–47 (2014)CrossRefGoogle Scholar
  5. 5.
    Kumar, J., et al.: Compact wideband rectangular DRA with slots and air gap for C-band application. In: IEEE-ICIIS 9th International Conference, Dec 2014Google Scholar
  6. 6.
    Mongia, R.K., Bhartia, P.: Dielectric resonator antennas—a review and general design relations for resonant frequency and bandwidth. Int. J. Microw. Millimetre-Wave Comput. Aided Eng. 4(3), 230–247 (1994)CrossRefGoogle Scholar
  7. 7.
    Kishk, A.A., Ahn, B., Kajfez, D.: Broadband stacked dielectric resonator antennas. IEEE Electron. Lett. 25, 1232–1233 (1989)CrossRefGoogle Scholar
  8. 8.
    Fan, Z., Antar, Y.M.M., Ittipiboon, A., Petosa, A.: Parasitic coplanar three-element dielectric resonator antenna subarray. Electron. Lett. 32, 789–790 (1993)CrossRefGoogle Scholar
  9. 9.
    Khalily, M., Rahim, M.K.A., Ramlee Kamarudin, M.: A novel P-shape dielectric resonator antenna for wideband application. In: IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE) (2010)Google Scholar
  10. 10.
    Liang, X.L., Denindni, T.A.: H-shaped dielectric resonator antenna for wideband applications. IEEE Antennas Wirel. Propag. Lett. 7, 163–166 (2008)CrossRefGoogle Scholar
  11. 11.
    Apperley, T., Okoniewski, M.: An air-gap-based frequency switching method for the dielectric resonator antenna. IEEE Antennas Wirel. Propag. Lett. 13, 454–458 (2014)CrossRefGoogle Scholar
  12. 12.
    Junker, G.P., et al.: Effect of an air gap on a cylindrical DRA operating in the TM01 Mode. IEEE Electron. Lett. 30(2), 97–98 (1994)CrossRefGoogle Scholar
  13. 13.
    Junker, G.P., et al.: Effect of fabrication imperfection for ground-plane-backed dielectric resonator antennas with coaxial excitation. IEEE Antenna Propag. 37(1), 40–47 (1995)CrossRefGoogle Scholar
  14. 14.
    Cooper, M., et al.: Investigation of dielectric resonator antennas for L-band communication. In: Symposium on Antenna Technology and applied electromagnetic ANTEM 96, Montreal, Canada, pp. 167–170, Aug 1996Google Scholar
  15. 15.
    Cooper, M., et al.: Investigation of Current and Novel Rectangular Dielectric Resonator Antennas for Broadband Application at L-Band Frequencies, M.Sc. Thesis, Carleton University (1997)Google Scholar
  16. 16.
    Chen, Z.N., Chia, M.Y.: Broadband Planar Antennas. Wiley, New York (2006)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Communication DepartmentGalgotias UniversityGreater NoidaIndia
  2. 2.SEECE, Galgotias UniversityGreater NoidaIndia

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