Abstract：Automatic impedance matching technology can improve the transmission efficiency and stability of the system. At present, the automatic impedance matching technology often uses intelligent algorithm to solve the problem, but the traditional intelligent algorithm is complex in modeling, usually spend a lot of time on iteration and calculation. To solve this problem, an automatic impedance matching method based on Q-based design method is proposed in this paper, and the corresponding T-network is designed. In this method, Q0 can be obtained from the plane, which crosses the solution space of the T-network’s device, and then the calculation of matching network parameters can be completed by using the Q-based design method. Based on the established Matlab analysis model, the simulation results show that the matching performance of this method is related to the value of the load resistance. A prototype of the automatic impedance matching network system is made for verification. The simulation and experimental results show that the impedance matching effect of this method is better, the calculation is smaller, the matching speed is greatly improved compared with the genetic algorithm, and has a certain practical application value.
范兴明, 苏斌华, 唐福鸿, 张鑫. 基于Q值法的T型自动阻抗匹配网络的研究[J]. 电工技术学报, 2022, 37(9): 2275-2283.
Fan Xingming, Su Binhua, Tang Fuhong, Zhang Xin. Research on an Automatic Impedance Matching T-Network Based on Q-Based Design Method. Transactions of China Electrotechnical Society, 2022, 37(9): 2275-2283.
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2022, Vol. 37 
