Abstract
A sector-shaped circularly polarized (CP) corporate feed inspired fractal defected ground structure (FDGS) antenna is proposed in this paper. Fine-tuning the ground plane's defected ground structure (DGS) dimensions to aid CP radiation with enhanced axial-ratio bandwidth. Comparative analysis of the fine-tuned fractal structure with the conventional patch is provided. The higher iterations of the FDGS help achieve good polarization purity with axial ratio enhanced bandwidth compared to traditional sector antenna. The proposed sector patch antenna illustrates an impedance bandwidth of around 110 MHz (1.75–1.86 GHz), while its 3 dB axial-ratio bandwidth is 40 MHz (1.78–1.82 GHz). The gain ranges from 3.39 to 3.75 dBi across the axial-ratio bandwidth.
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Ramya, R., Gupta, S. (2023). Circularly Polarized Sector Patch Antenna with Fractal Defected Ground Structure. In: Dhavse, R., Kumar, V., Monteleone, S. (eds) Emerging Technology Trends in Electronics, Communication and Networking. Lecture Notes in Electrical Engineering, vol 952. Springer, Singapore. https://doi.org/10.1007/978-981-19-6737-5_17
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DOI: https://doi.org/10.1007/978-981-19-6737-5_17
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