Abstract
At a preparation of the transmission equipment for digital terrestrial television, there is a requirement to try moving an equipment investment back by means of a broadband antenna simultaneously to be able to transmit the channel that frequency departed. So far, though twin loop antenna had been much used as a transmission antenna for UHF, it was a narrow band and many kinds(9 kinds).We have developed a broadband 4L-type twin loop antenna(24U) which was able to cover UHF with 2 kinds.
