Broadband Circularly Polarized Microstrip Patch Antenna with Fractal Defected Ground Structure

  • B. Naveen Reddy
  • V. Mekaladevi
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 637)


A new technique to design single-fed circularly polarized (CP) microstrip patch antenna is presented in this paper. The estimation of bandwidth enhancement is based on dimension adjustment of the fractal defected ground structure (FDGS). Then, by inserting circular slot on the patch, circular polarization (CP) is obtained. The parametric optimization is done in ANSYS HFSS simulator in order to fix the dimensions of the microstrip patch antenna. The microstrip patch antenna with third iterative FDGS is fabricated and measured. The bandwidth of the measured microstrip antenna with CP radiation is about 120 MHz (2.13–2.25 GHz) and axial ratio of 2.3 dB to ensure circular polarization.


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© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • B. Naveen Reddy
    • 1
  • V. Mekaladevi
    • 1
  1. 1.Department of Electronics and Communication Engineering, Amrita School of EngineeringAmrita Vishwa VidyapeethamCoimbatoreIndia

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