The invention provides a wireless power transmission (WPT) system using width and pulse shape modulation. Instead of using continuous wave for WPT, the wireless power transmission (WPT) system enhances the output voltage and power conversion efficiency (PCE) of a radio frequency direct current (RF-DC) rectifier by adjusting duty cycles and pulse shapes. The PCE of RF-DC rectifier can be improved 2.5 times under constraint of low input power. The performance of the wireless power transmission (WPT) system using width and pulse shape modulation is verified to optimize the PCE under constraint of low input power in biomedical applications.本發明係有關於一種以寬度與波形調變之無線傳能系統,其以不同工作週期(Duty Cycle)與波形(Pulse Shape)的脈衝波(Pulse Wave)取代傳統連續波(Continuous Wave)進行能量傳輸,可有效提升射頻直流整流電路的輸出電壓(Vout)與能量轉換效率(Power Conversion Efficiency,PCE)。而在低平均輸入功率下,能量轉換效率可提升2.5倍,可提升在生醫應用之低輸入功率限制下的效能優化。100‧‧‧無線傳能系統110‧‧‧傳送端電路120‧‧‧無線傳輸通道130‧‧‧接收端電路
