This project involved the design and optimization of a rectangular microstrip patch antenna operating at 2.45 GHz using Rogers RT5880 substrate. CST Microwave Studio was used to analyze impedance matching, field distributions, radiation patterns, and antenna efficiency, while parametric tuning was performed to achieve resonance at the target frequency. 

Objectives

• Design a rectangular microstrip patch antenna for 2.45 GHz operation.

• Achieve proper impedance matching through inset-feed and slot optimization.

• Investigate the effects of patch dimensions and substrate parameters on antenna performance.

Outcomes & Contributions

• Successfully tuned the antenna to resonate at 2.45 GHz with S11 below −30 dB.

• Analyzed E-field, H-field, surface current, and far-field radiation characteristics.

• Achieved approximately 72% radiation efficiency with broadside radiation behavior.

Technical Details & Skills

• Technique: Rectangular microstrip patch antenna with inset-feed excitation 

• Tools: CST Studio Suite

• Skills: Patch antenna design, impedance matching, parametric optimization, field analysis, radiation pattern characterization 

• Field: Electromagnetics, RF Systems, Wireless Communications, Microstrip Antennas