Radiation and Antennas

Radiation refers to the emission of energy in the form of electromagnetic waves, such as light, radio waves, or microwaves. Antennas are devices designed to transmit or receive these waves, converting electrical energy into radio waves or vice versa. When an electric charge accelerates, it creates changing electric and magnetic fields that propagate through space as radiation. This concept is central to communication technologies, enabling devices like radios and cell phones to send and receive information wirelessly by harnessing these waves for effective long-distance transmission.