Design and Fabrication of RF-DC Converters for 5.8 GHz Microwave Wireless Power Transmission

5.8 GHz 마이크로파 무선전력전송을 위한 RF-DC 변환기의 설계 및 구현

  • Lee, Seong Hun (Department of Electronic Engineering, Sunchon National University) ;
  • Son, Myung Sik (Department of Electronic Engineering, Sunchon National University)
  • Received : 2015.12.02
  • Accepted : 2015.12.21
  • Published : 2015.12.31


We have designed and fabricated two different RF-DC Converters called doubler for 5.8GHz Microwave Wireless Power Transmission. The doubler as RF-DC Converter makes the rectified voltage be doubled. We measured and compared voltages of the doublers with those of the previous full-wave rectifying RF-DC Converter. The doublers show rectified double voltages. However, the full-wave rectifying converter has a high efficiency due to the suppression of reflecting harmonics. The other fabricated doublers causes so many harmonics that they can't convert the low-power RF to the full DC. In this paper, we show that the different doublers doesn't double the rectifying voltages compared with those of the full-wave rectifying converter and give a reason about that.


  1. D.H. Lee, Kisuk Kim, Minhan Kim, Seungmin Jung, Chongsuk Song, Gilsoo Jang, "2.4 GHz/5.8 GHz microwave wireless power transfer system," The Korean Institute of Electrical Engineers Summer Conference, pp. 2-4, (2013).
  2. T.Y. Eom, C.S. Oh, S.J. Park, "Wireless power transfer technologies trends," Journal of Energy Engineering, 24(2), pp. 174-178, (2015).
  3. Choi Ki-Ju, Hwang Hee-Yong, "Performance comparison of the RF-DC converter circuit for wireless power transmission," Journal of Industrial Technology, Kangwon Natl. Univ, 29B, pp. 145-149, (2009).
  4. Minseok Han, Seunghwan Jung, Hoon Sohn, "High efficient rectenna using a harmonic rejection low pass filter for RF based wireless power transmission," IEEE 11th International Symposium on Wireless Communications Systems (ISWCS), pp. 423-426, (2014).
  5. Aakib J. Sayyad, N.P. Sarvade, "Wireless power transmission for charging mobiles," International Journal of Engineering Trends and Technology, 12(7), pp. 331-336, (2014).
  6. Seong Hun Lee, Myung Sik Son "5.8 GHz microwave wireless power transmission system development and transmission-efficiency measurement," Journal of the Semiconductor & Display Technology, 13(4), pp. 59-63, (2014).