To provide a high-frequency signal distributor where floating capacity and floating inductance are hardly generated in the vicinity of a transformer.

A transformer for impedance matching and a transformer for signal distribution, each of which comprises a coil 14 (15) wound around a single ferrite core 10, are installed on a copper foil of a single-sided printed board having only one side pasted with the copper foil. There is as little space as possible formed between the transformers and the copper foil and on the other face of the single-side printed board, where no copper foil is formed, a metal board 21 is installed at a place corresponding to the transformers. The coils are disposed between the ferrite core and the copper foil, with the ends extended through the single-side printed board to be connected to the metal board and the single-side printed board can be substituted with a double- side printed board, and in such a case, the metal board may be replaced with a copper foil on the rear face.