Lecture
This lecture covers the fundamentals of radiation and antennas, including the effects of mismatch, polarization, and losses. It explains the concept of antenna efficiency, gain, and radiation resistance. Examples such as the Hertz dipole and loop antennas are discussed, along with the impact of ohmic losses and skin effect on radiated power. The lecture also addresses the importance of impedance matching between the generator and antenna for maximizing power transfer. Various antenna types, from parabolic to smartphone antennas, are analyzed in terms of their efficiency and radiated power.