We solve the Maxwell-Boltzmann equations and calculate reactor impedance for helicon device with the Nagoya type m antenna using a finite, width modeling of antenna current and inspect the dependence of various components of impedance on discharge parameters, The total resistance is divided into various components Such as electron-ion contributions and axial-perpendicular field contributions. Moreover, the total resistance can be approximately expressed as the sum of TG and helicon contributions in a wide range of parameters.