Bias circuit design for a real-time electrically controlled active matching circuit utilizing p-i-n diode switches for wireless power transfer

An analytical design of a bias circuit for a real-time active matching circuit utilizing p-i-n diode switches is discussed in terms of practical circuit restrictions of isolation, response time and rated DC current. The effect of a non-ideal p-i-n diode switch with the bias circuit for the input impedance was confirm in the input power range of 0 to 30 dBm, and an optimized bias circuit under the limitation of use of Arduino Uno micro-controller module was designed. The performance of the matching circuit was confirmed through the simulation proving that the p-i-n diode switch with the optimized bias circuit can realize almost the same performance as the ideal switch.