What is an End Fed Antenna?

An end-fed antenna is a type of antenna that is fed at only one end. It is typically a long wire antenna, the length of which is adjusted to about half the wavelength and becomes multi-band capable by adding coils that shorten the wavelength to allow efficient radiation and reception of radio waves. This antenna is often used in conjunction with a 1:49 matching network to match the impedance of the antenna to the radio and optimize the standing wave ratio. This antenna, with only one active end, is very popular with radio amateurs because it is easy to install, can be used flexibly in different environments and often offers good performance on different bands.