An implantable neural stimulator method for modulating excitable tissue in a patient including: implanting a neural stimulator within the body of the patient such that one or more electrodes of the neural stimulator are positioned at a target site adjacent to or near excitable tissue； generating an input signal with a controller module located outside of, and spaced away from, the patient's body； transmitting the input signal to the neural stimulator through electrical radiative coupling； converting the input signal to electrical pulses within the neural stimulator； and applying the electrical pulses to the excitable tissue sufficient to modulate said excitable tissue.
