PURPOSE: An antenna device is provided to arrange more than two coils in an antenna rod, thereby implementing electric field distribution similar to a 1/4 wavelength monopole with the length of a 1/16 wavelength. CONSTITUTION: A power supplying rod unit(112) is connected to a power supplying unit. A terminal rod unit(116) is formed in a terminal part separated from the power supplying rod unit. More than one middle rod unit(114) is formed between the power supplying rod unit and the terminal rod unit. A first helical unit(122) is formed between the power supplying rod unit and the middle rod unit. A second helical unit(124) is formed between the middle rod unit and the terminal rod unit.
