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The development of new wireless technologies has increased the demand for innovative patch antenna designs capable of operating across multiple frequency bands. In this work, we propose a compact and reconfigurable ring-enhanced circular patch antenna optimized for sub-6 GHz 5G mobile communication and WiFi standards, including WiFi 2.4 GHz and WiFi 6E. The proposed antenna adopts a compact circular patch geometry, facilitating its integration into wireless systems and components. Frequency reconfigurability is ensured through the use of a PIN diode that acts as a switching element. The antenna structure is designed and analyzed using CST Studio Suite and Ansys HFSS, and is implemented on an FR4 epoxy substrate with a relative permittivity of 4.4 and a thickness of 1.6 mm.
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DOI: 10.1109/wincom65874.2025.11313447
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