Impedance matching is a part of microwave electronics which is mainly used to the transmission lines in order to eusure all the high frequency microwave signals that can be transimitted to the load point without signal reflex back to the source point. As a result, it is highly helpful ass to improve energy efficiency. Meanwhile, all circuits come into their own, which indicates their different impedance matching conditions;

Generally, there are two various impedance matching methods: One is lumped-circuit matching, the other is transmission line matching.