volume | PIER Journals

Abstract

This paper presents a tri-split ring resonator (TSRR) integrated with a rectangular dielectric resonator antenna (RDRA) using an E-shaped microstrip feed line. The RDRA, measuring 15×14×14 mm³ and constructed on an FR4 substrate of 46×46×1.6 mm³, features a gain of 10.9 dBi and a fractional bandwidth of 22.05% (5.85 GHz-7.3 GHz) with radiation efficiency over 82%. It supports fundamental modes TE₁₁₁ at 6.12 GHz, along with lower- and higher-order modes TE_1δ2 at 6.13 GHz, TE_3δ3 at 6.14 GHz, and TE₃₃₃ at 6.2 GHz. Simulated and measured results show close agreement across the operating band. The proposed antenna has several applications, including point-to-point microwave links (5.925 GHz-7.125 GHz), satellite communication in the C-band, and defense and military communication.

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Dr. Syamala Misala

Dr. Dwarapu Lakshmi Narayana

Dr. Kanthamma Bokka