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Single Feed L-Slot Microstrip Antenna for Circular Polarization

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Abstract

In this paper, a single layer asymmetric L-slot loaded microstrip patch antenna for circular polarization is proposed. The suggested L-slot excites the two orthogonal patch modes in phase quadrature for circular polarization without truncating any corner of the probe feed square patch. A parametric study has been carried out to investigate the effects caused by different arm length and width of the L-slot. Theoretical analysis using modal expansion cavity model is developed for the L-slot antenna and result are verified with simulated and experimental results. The 3-dB axial ratio bandwidth of the proposed antenna is 1.8 %. The overall antenna size is 46 mm × 46 mm × 1.6 mm.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Ambedkar Institute of Advanced Communication Technologies and Research, Delhi, 110031, India

    Binod K. Kanaujia, Sachin Kumar & Mukesh K. Khandelwal

  2. G. B. Pant Engineering College, Pauri Garhwal, Uttrakhand, 246194, India

    A. K. Gautam

Authors
  1. Binod K. Kanaujia
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  2. Sachin Kumar
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  3. Mukesh K. Khandelwal
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  4. A. K. Gautam
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Correspondence to Binod K. Kanaujia.

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Kanaujia, B.K., Kumar, S., Khandelwal, M.K. et al. Single Feed L-Slot Microstrip Antenna for Circular Polarization. Wireless Pers Commun 85, 2041–2054 (2015). https://doi.org/10.1007/s11277-015-2889-x

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  • DOI: https://doi.org/10.1007/s11277-015-2889-x

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