📡 An antenna is a device used for transmitting and receiving electromagnetic waves, typically in the form of radio or television signals. It acts as a bridge between the electronic equipment and the surrounding environment, capturing or emitting electromagnetic energy to enable communication and signal reception. Antennas come in various shapes and sizes, designed to optimize the transmission and reception of specific frequencies or wavelengths. They are widely used in telecommunications, broadcasting, wireless communication systems, radar systems, and many other applications.