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Design and Investigation of Dual Band CDRA Excited by Conformal Feed for Broadband Wireless Applications

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Abstract

In this paper dual band Cylindrical Dielectric Resonator Antenna (CDRA) excited by conformal trapezoidal patch is successfully developed and investigated for broadband wireless applications. Rogers TMM10i (dielectric) is used for fabrication of CDRA, which have 9.8 dielectric constant (Ɛr). A 50 Ω microstrip line integrated with vertical trapezoidal flared patch is used to feed the antenna. The measured result offers wide VSWR bandwidth matching in two bands from 2.25 to 4 GHz and 4.7 to 5.7 GHz for |S11| < − 10 dB. The average peak gain is more than 3.1 dBi for a first operating band with gain flatness less than ± 2 dB and 8.3 dBi for the second operating band with gain flatness less than ± 1.5 dB. The proposed antenna covers the entire important wireless communication band i.e. Wi-Bro (2.3–2.4 GHz), Bluetooth (2.4–2.484 GHz), WLAN (2.4–2.485 GHz and 5.15–5.7 GHz), Wi-MAX (2.5–2.7 GHz and 3.4–3.6 GHz), Satellite DMB (2.605–2.655 GHz) and LTE (3.2–3.3 GHz). A comparative analysis of antenna’s parameters has been examined by CST Microwave Studio and results are verified through experimental outcomes.

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Acknowledgements

Authors would like to thank Prof. N. K. Agrawal and Mr. Amitesh Kumar for technical discussion with time to time for quality improvement of paper.

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Authors and Affiliations

  1. Department of Electronics Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand, 826004, India

    Pramod Kumar & Santanu Dwari

  2. Microwave Plasma Group, Institute for Plasma Research, Gandhinagar, Bhat, Gujarat, 382428, India

    Jitendra Kumar

  3. Department of Electronics and Communication, Inderprastha Engineering College, Ghaziabad, U.P., India

    Utkarsh

  4. C-D&E/CE, Bharat Electronics Limited, Bangalore, India

    Shailendra Singh

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  1. Pramod Kumar
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Correspondence to Jitendra Kumar.

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Kumar, P., Kumar, J., Utkarsh et al. Design and Investigation of Dual Band CDRA Excited by Conformal Feed for Broadband Wireless Applications. Wireless Pers Commun 106, 1531–1546 (2019). https://doi.org/10.1007/s11277-019-06228-x

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  • DOI: https://doi.org/10.1007/s11277-019-06228-x

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