Consideration of Long Distance WPT using 28 GHz Gyrotron

Abstract

  Millimeter-wave WPT is expected as high power density WPT method because it has advantages such as high beam directivity and smaller circuit. In this study, we use gyrotron which is high power millimeter-wave oscillator and used in nuclear fusion or spectral source, as power source of WPT. The power transmitting experiment was conducted at a distance of 900 mm with attenuators. We achieved transmitting efficiency of 2.30% agree with theoretical efficiency of 2.35%. It indicates that WPT using gyrotron can be conducted according to theory.