Radio-frequency engineering

Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz.

RF engineering is a highly specialized field that typically includes the following areas of expertise: To produce quality results, the RF engineer needs to have an in-depth knowledge of mathematics, physics and general electronics theory as well as specialized training in areas such as wave propagation, impedance transformations, filters and microstrip printed circuit board design.

List of radio electronics topics: Radio-frequency engineers are specialists in their respective field and can take on many different roles, such as design, installation, and maintenance.

This includes transmitter site emergency power, remote control, main transmission line and antenna adjustments, microwave radio relay STL/TSL links, and more.

There are many applications of electromagnetic theory to radio-frequency engineering, using conceptual tools such as vector calculus and complex analysis.