Antenna design is the systematic process of conceiving, analyzing, fabricating, and optimizing electromagnetic structures engineered for the efficient radiation and reception of radio waves. As an academic field and methodological approach, it investigates the fundamental principles of electromagnetics, material science, and computational methods to control critical antenna performance characteristics, including radiation pattern, gain, impedance matching, bandwidth, polarization, and efficiency. This research is essential for enabling and advancing wireless communication, radar, sensing, and various other applications reliant on the transmission and reception of electromagnetic energy.