Definition[edit | edit source]
An electromagnetic wave is formed when an electric field couples with a magnetic field. The magnetic and electric fields of an electromagnetic wave are perpendicular to each other and to the direction of the wave.
Overview[edit | edit source]
Electromagnetic waves transport energy and, unlike ocean waves, can travel through space without the need for wires or a physical medium. They include not only radio waves, but also infrared light, visible light, and X-rays, among others. The type of wave, along with its properties, depends on the frequency at which it oscillates.
Source[edit | edit source]
- "Overview" section: 5G Wireless: Capabilities and Challenges for an Evolving Network, at 5.