# 직렬 연결 RF-DC 변환기의 변환효율에 관한 연구

• 최기주 (강원대학교 대학원 전기전자공학과) ;
• 황희용 (강원대학교 전기전자공학과)
• Published : 2010.02.28

#### Abstract

In this paper, we designed the RF-DC converter used in wireless power transmission system and studied how to design the RF-DC converter of high conversion efficiency. The RF-DC converter operate at 2.45GHz and the diode is connected with series. The RF-DC converter uses shorted stub for DC loop and matching. We can divide the RF-DC converter circuit into four blocks. The reflection coefficients between the blocks were optimized for the maximum conversion efficiency at 0 dBm input power and $1300{\Omega}$ load impedance. The final design of the RF-DC converter has a 52 percent conversion efficiency.