2021 Volume 10 Issue 9 Pages 660-664
Highly efficient RF-DC conversion circuit is required for wireless power transmission. Since a diode with non-linear characteristics is used for the RF-DC conversion circuit, it is difficult to theoretically design a highly efficient RF-DC conversion circuit. Therefore, we have investigated automatic design by genetic algorism. As a result of automatic design, it was found that the impedance of the input circuit converges to a certain area when the input power and load are fixed. Furthermore, we constructed a measurement system and found that in a highly efficient RF-DC conversion circuit, there is a canceling relationship between the reactance of the input circuit and the diode.