volume | PIER Journals

Abstract

A circular-slot embedded elliptical patch antenna with DGS ground is introduced for Wi-Fi, Bluetooth, Sub 6 GHz 5G, IRNSS, Wi-Max, and WLAN wireless network applications. The design consists of an elliptical radiating patch featuring a circular cutout positioned on the uppermost layer of the substrate, while the under layer incorporates a DGS structure with two symmetrical slots. The antenna is implemented on an FR4 substrate having a thickness of 1.6 mm and is excited using a microstrip line feed. The structural layout of the antenna corresponds to dimensions of 0.87λ × 0.81λ × 0.02λ. The developed antenna achieved a bandwidth of 86.74%, encompassing a BW extending from 1.73 to 4.38 GHz maintaining a reflection coefficient (S₁₁) lower than -10 dB, exhibiting 5.1 dB of peak gain. The radiation characteristics and surface current density distribution are examined at specific frequencies of 2.4 GHz, 2.78 GHz, 3.5 GHz, and 3.95 GHz. Additionally, the antenna's evolution and parameter effects were examined to better understand its performance characteristics.

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Mr. Bharat D. Prajapati

Dr. Bhavesh Jaiswal

Dr. Pravin J. Dalvadi