Low digital signal transmission line that disturbs of low impedance at high frequency

The utility model discloses a low digital signal transmission line that disturbs of low impedance at high frequency, including the transmission line and locate the bayonet joint at transmission line both ends, the transmission line is including central cable, steamed elastomer not in the least is drawn together to the central line cable wrap, a semicircular pit is provided on the there is not steamed elastomer, be equipped with separation portion between the two pit, the center of not having steamed elastomer is equipped with first passageway, it also is equipped with a plurality of second channels that set up around first passageway not have steamed elastomer, every second channel all is equipped with the PE line, be equipped with the steel wire in the first passageway, the good signal line in every pit is located respectively to the multi -strip of center cable, every signal line is including two signal single line and the built -in ground wire of item, the built -in ground wire transposition of two signal single line and item is surrounded together and by the aluminium foil, frequency band width, anti -interference, impedance low grade advantage have been realized.