Title :
Optimized wireless power transmission circuit for energy transfer
Author :
Noh, Young Chul ; Cha, Cheolung ; Park, Jun ; Choi, Jong Chan ; Kim, Moonil
Author_Institution :
Dept. of Electr. Eng., Korea Univ., Seoul, South Korea
Abstract :
In this paper, a wireless power transmission system was designed and demonstrated using an optimized rectenna circuit. To use wireless power transmission, the most important factor is the microwave-DC conversion efficiency. To improve the microwave-DC conversion efficiency, matching circuits from antenna to rectifier and rectifier to load were designed and fabricated in this research. And also, printed monopole antenna was designed and optimized with rectifying circuit at 2.4 GHz. The return loss (S11) of the antenna is about -22.6 dB. The return loss of rectifying circuit is -28.3 dB. We obtained the microwave-DC conversion efficiency of 0.61 mW, when input power is 24 dBm.
Keywords :
microstrip antennas; monopole antennas; power conversion; rectifying circuits; frequency 2.4 GHz; loss -22.6 dB; loss -28.3 dB; matching circuits; microwave-DC conversion efficiency; optimized rectenna circuit; optimized wireless power transmission circuit; power 0.61 mW; printed monopole antenna; rectifying circuit; return loss; Design optimization; Dipole antennas; Energy exchange; Fabrication; Feeds; Microwave circuits; Power transmission; Rectennas; Rectifiers; Rectifying circuits;
Conference_Titel :
Telecommunications Energy Conference, 2009. INTELEC 2009. 31st International
Conference_Location :
Incheon
Print_ISBN :
978-1-4244-2490-0
Electronic_ISBN :
978-1-4244-2491-7
DOI :
10.1109/INTLEC.2009.5351937
