Design and Analysis of Multi-Band Microstrip Patch Antenna for 5G Applications

Abstract: This study presents the design and analysis of a microstrip patch antenna array operating at 3.6 GHz, within the Sub-6 GHz band designated for 5G communication systems. The proposed antenna is fabricated on an FR4 epoxy substrate with a thickness of 2.2 mm and a compact footprint of 70 mm × 70 mm. A five-element linear array configuration is implemented to improve gain and directivity. Impedance matching is achieved through a lumped port excitation with a feedline width of 27.18 mm. For far-field characterization, a radiation boundary of 90 mm × 90 mm × 35 mm is established. Performance evaluation across 3 GHz to 17 GHz demonstrates suitability for WiMAX and satellite communication applications.

Keywords: Microstrip Patch Antenna; Antenna Array; 3.6 GHz; Sub-6 GHz Band; 5G Communication; High Directivity; FR4 Substrate; Lumped Port Excitation; WiMAX; Satellite Communication systems.