sesj Stardom Scientific Journal of Natural and Engineering Sciences 2980-3756 Stardom University 10.70170/wbYsda87223 33 Design of a Reconfigurable Microstrip Antenna with Defected Ground Structure for 5G System S. Rasheed Wasan Department of Information and Communications Engineering, Al-Khwarizmi College Abdullah Osama A. Elwi Taha A. Nasser Sana 30 12 2024 2 2 1 16 This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License.

This paper proposes the design of a reconfigurable microstrip antenna using Defected Ground Structure (DGS) to improve characteristics of microwave circuits. The designed antenna is expected to work in four modes depending on PIN diode state, operating at resonant frequencies of (2.6, 5.35, 5.43, 5.45) GHz. VSWR value is between 1-1.4 at the resonant frequency. DGS enhances gain, bandwidth and improves the characteristics of microstrip antenna radiation. The bandwidth reached 540 MHz when both PIN diodes are on.

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