RF (radio frequency) systems are systems that use radio waves to transmit and receive data. They are commonly used in a variety of applications, including wireless communication, television and radio broadcasting, and satellite communication. An RF system typically consists of a transmitter, which converts an electrical signal into a radio wave and transmits it through an antenna, and a receiver, which converts the radio wave back into an electrical signal using an antenna. RF systems can operate over a wide range of frequencies, from very low frequencies (VLF) to very high frequencies (VHF) and beyond. The performance of an RF system depends on a number of factors, including the frequency of the signal, the power of the transmitter, the gain of the antenna, and the presence of interference from other sources.
The Video Gallery of RF Antennas can be found on this link.