阻抗匹配主要應用於傳輸線上，在於高頻信號能完整傳至負載點為目的，而不會有任何信號反射回來發射端，並且能提升能源效率及效益。簡單的說就是特性阻抗等於負載阻抗；一般器材的輸出阻抗和所連接的負載阻抗的某種關係，要完全的符合電源效率，以避免接上負載後對器材本身的工作狀態產生明顯的影響。故需要使用阻抗分析儀來分析傳輸線上的阻抗是否能達到負載阻抗的需求。 市面上有多種量測儀器，例如：時域反射儀(TDR)、網路分析儀(LNA)，應用上及使用上比較精密、繁鎖；目前此研究將會縮小量測功能化、簡單化，並且在操作上的功能性、實用性比較方便，但量測的數值會比較不精準，可是在使用上會比較快速及簡單。 The impedance matching mainly applies in the transmission line, let high frequency signal that is not attenuation to deliver load side, but any signal have not reflection to source side. That can increase the energy efficiency and benefit.
Briefly, the characteristic impedance must equal the impedance of load. The relation of output impedance and impedance of load that have to fit power efficiency totally, that avoid occurring affect after connect the impedance of load. Therefore the impedance analyzer could be analyzer on the impedance of transmission line whether that meet request for impedance. Some kinds of the measurement instrument, for example: TDR, LNA, they are precise and complicated in the application. The research will be able to reduce the functional, simplification so far but measure value for impedance that is not precise, however that can express and simple on the usefulness.
