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Broadband CPW-fed circularly polarized antenna for IoT-based navigation system

  • Amit Birwal (a1), Sanjeev Singh (a2), Binod Kumar Kanaujia (a3) and Sachin Kumar (a4)

Abstract

The paper presents a new coplanar waveguide (CPW)-fed rectangular patch antenna with a square-shaped ground plane that can be employed in modern advanced navigation systems. For realizing broad impedance bandwidth in the proposed antenna, a wide slot is introduced in the square ground plane and the rectangular patch is shifted toward the left edge of the ground surface. In addition, by means of introducing square-shaped stubs near the left and right edge of the ground plane, the circular polarization is achieved at L1, L2, and L5 satellite bands. As per the simulation results, the proposed antenna provides a wide impedance bandwidth (S11<−10 dB) of 123% (1.12–4.72 GHz) and 3 dB axial ratio bandwidth of 11% (1.15–1.29 GHz) and 18% (1.5–1.8 GHz) suitable for multipurpose wireless applications. The designed single feed circularly polarized antenna is low profile, small size, light weight and easily integrable with other high-frequency communication devices. To validate radiation performance of the proposed structure, the antenna is fabricated and integrated with the commercially available Global Positioning System (GPS) receiver and it is found that the measured values are in close agreement with the desired results.

Copyright

Corresponding author

Author for correspondence: Binod Kumar Kanaujia, E-mail: bkkanaujia@ieee.org

References

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Keywords

Broadband CPW-fed circularly polarized antenna for IoT-based navigation system

  • Amit Birwal (a1), Sanjeev Singh (a2), Binod Kumar Kanaujia (a3) and Sachin Kumar (a4)

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