Antennas and Wave Propagation

Antennas are devices that transmit and receive electromagnetic waves, which are a form of energy that includes radio, microwaves, and light. When an electrical current flows through an antenna, it creates these waves, allowing communication over distances. Wave propagation refers to how these waves travel through different environments, such as air, water, or space. Factors like frequency, obstacles, and atmospheric conditions influence how well the waves travel. Understanding antennas and wave propagation is crucial for technologies like radios, televisions, and cell phones, enabling effective wireless communication.