The theory of Antenna Radiation
Antennas are everywhere. Whether it be in the form of large towers sitting atop rooftops on buildings, satellite dishes, or even in the form of very tiny printed circuits on your smartphone; antennas play a crucial role in transmitting information across the globe and into outer space without the need for wires or cables spanning ridiculous distances. So how does an antenna work, exactly? To answer this question, we will look at how electromagnetic waves can be produced in a simple model known as the Hertzian dipole antenna.