A novel broadband rectenna for energy harvesting

This paper represents a broadband rectenna for wireless energy harvesting. First, a dual-polarization antenna has been proposed to receive RF energy from various directions. Then two broadband rectifier circuits with single-branch structure and two-branch structure have been designed. At -10dBm input RF power, The conversion efficiency of the single-branch rectifier is greater than 40% for the entire 1.75-2.5GHz band, and the efficiency of the two-branch rectifier is greater than 45% for the 0.85-0.95GHz and 1.7-2.45GHz band.