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Design of Stacked Rectangular Dielectric Resonator Antenna for Wideband Applications

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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.

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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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Authors and Affiliations

  1. Ambedkar Institute of Advance Communications Technology and Research, Delhi, India

    Gaurav Kumar, Sarita Ahlawat & Rajveer S. Yaduvanshi

  2. Guru Tegh Bahadur Institute of Technology, Delhi, India

    Mahender Singh

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  1. Gaurav Kumar
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  2. Mahender Singh
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  3. Sarita Ahlawat
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  4. Rajveer S. Yaduvanshi
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Correspondence to Gaurav Kumar.

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Kumar, G., Singh, M., Ahlawat, S. et al. Design of Stacked Rectangular Dielectric Resonator Antenna for Wideband Applications. Wireless Pers Commun 109, 1661–1672 (2019). https://doi.org/10.1007/s11277-019-06644-z

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