经由无线电波的微波无线电力传输（MWPT）一直是WPT系统的重要研究课题，其中整体功率传输和转换效率是评估系统性能的关键因素。在优化整个系统的功率传输效率时，有关MWPT的最新工作仅将自由空间中的端到端功率传输效率或接收器（天线）的功率转换效率分别考虑在内。为了全面考虑整个MWPT系统的系统级匹配，提出了一种新颖的空间匹配概念，包括孔径场匹配，功率匹配和阻抗匹配，以优化整体功率传输效率。通过在这项工作中使用空间匹配方法，可以分别获得发射天线，接收天线和整流电路等子系统组件的优化设计，从而避免了大型复杂的MWPT系统的复杂系统优化，因此，总的功率传输效率显着提高了19.4。与传统方法相比，减少了％的开销，并降低了大规模系统级设计的复杂性。这项工作将对MWPT应用程序的系统设计产生宝贵的启示。并降低了大规模系统级设计的复杂性。这项工作将对MWPT应用程序的系统设计产生宝贵的启示。并降低了大规模系统级设计的复杂性。这项工作将对MWPT应用程序的系统设计产生宝贵的启示。 Microwave wireless power transmission (MWPT) via radio waves has been an important research topic of the WPT systems, where the overall power transfer and conversion efficiency is a key factor to evaluate the system performance. The state-of-the-art work on MWPT has only taken the end-to-end power transfer efficiency in free space or the power conversion efficiency of the receiver (rectenna) into consideration separately when optimizing the power transfer efficiency of the overall system. To comprehensively consider the system-level matching of the entire MWPT system, a novel space matching concept, including aperture field matching, power matching, and impedance matching, is proposed for optimizing the overall power transfer efficiency. By using the space matching method in this work, the optimal designs of the subsystem components such as the transmitting antenna, receiving antenna, and rectifying circuit can be separately obtained to avoid the complex systematic optimization of the large-scale and complicated MWPT system, therefore, significantly improving the overall power transfer efficiency by 19.4% compared with the traditional methods, and reducing the complexity in large-scale system-level design. This work will have valuable implications in the system design of MWPT applications.