Broadband Circularly Polarized Planar Slot Antenna for Bluetooth/WiMAX Application

  • Vikash KumarEmail author
  • Mohammad Imroz Khan
  • Avinash Chandra
  • Sushrut Das
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 41)


A wideband circular polarized slot antenna using coplanar waveguide feed (CPW) technique is presented in this work. A rectangular slot is created in the ground plane and an asymmetric patch residing in the rectangular slot is fed by central signal strip. The rectangular slot is perturbed by a conducting stub embedded in the ground. Ground is further modified by etching a few rectangular slots in it aiming at broadband circular polarized behavior. A grounded metallic arm of L-shape is incorporated in the structure which improves the axial ratio bandwidth of the proposed antenna. The proposed antenna provides an overlap band, i.e., S11 < –10 dB and axial ratio <3 dB from 1.83 to 3.37 GHz which provides a large axial ratio bandwidth of greater than 1.5 GHz for which antenna exhibits circularly polarized behavior thereby covering Bluetooth and WiMAX usable bands.


Coplanar waveguide Wideband Circular polarized 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Vikash Kumar
    • 1
    Email author
  • Mohammad Imroz Khan
    • 2
  • Avinash Chandra
    • 3
  • Sushrut Das
    • 1
  1. 1.Department of Electronics EngineeringIndian Institute of Technology (Indian School of Mines) DhanbadDhanbadIndia
  2. 2.Department of Electronics and Communication EngineeringVignan’s Foundation for Science, Technology and ResearchGunturIndia
  3. 3.School of Electronics EngineeringVellore Institute of TechnologyVelloreIndia

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