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Design of Stacked Rectangular Dielectric Resonator Antenna for Wideband Applications

  • Gaurav KumarEmail author
  • Mahender Singh
  • Sarita Ahlawat
  • Rajveer S. Yaduvanshi
Article
  • 11 Downloads

Abstract

In this article, we present the study to improve the bandwidth of the dielectric resonator antenna (DRA) excited by aperture coupled feed by using a stacked DRA configuration above a ground plane. A wide dual-band stacked rectangular dielectric resonator antenna is also presented. The antenna consists of thirteen dielectric layers with different permittivity (εr1 = 12.85 with 0.8 mm thickness and εr2 = 4.4 with 0.8 mm thickness) and it is centrally fed by a rectangular slot on FR4 epoxy substrate εr = 4.4 with 0.8 mm thickness. The numerical procedure is performed through a software package based on the finite-element method. An excellent agreement between simulated experimental results is observed. The concept of increasing the bandwidth of the DRA by stacking is verified with the proper excitation and selection of the resonator parameters, a wide bandwidth has been achieved for the stacked DRA configuration based on a − 10 dB reflection coefficient on a 50 Ω transmission line.

Keywords

Dielectric resonator antenna Wideband antenna Dual resonance Stacked antenna Impedance bandwidth 

Notes

Acknowledgements

We would like to thanks, Mr. Chandra Prakash, lab assistant of microwave lab, AIACTR, Delhi for arranging and granting a liberal access to the lab and has been extremely cooperative and helpful throughout the research work. We would like to extend our sincere thanks, to Mr. Harinder for their cooperation in fabricating the design of the antenna.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Gaurav Kumar
    • 1
    Email author
  • Mahender Singh
    • 2
  • Sarita Ahlawat
    • 1
  • Rajveer S. Yaduvanshi
    • 1
  1. 1.Ambedkar Institute of Advance Communications Technology and ResearchDelhiIndia
  2. 2.Guru Tegh Bahadur Institute of TechnologyDelhiIndia

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