本研究旨在應用微波傳輸時窄波束特性與波束控制技術，利用相控陣列天線作為無線電能傳輸系統之發射端，探討動態定向無線電能傳輸用於個人用空間自由定位充電的可行性。相控陣列天線能夠使傳輸能量時更加集中，並透過改變激勵相位使主波束轉向特定指定方向，使發射天線不需採用機械式旋動，而是利用電子式的波束控制技術來達到在充電過程中追隨手機移動的效果。本文以數學摸擬軟體分析陣列配置與激勵相位對於輻射場型的影響，以得到適當的陣列天線配置，接著以高頻電磁模擬軟體設計5.8 GHz與24.125 GHz微帶天線作為陣列天線單元，並分別建構4×4與8×8陣列天線，模擬相控陣列天線在動態定向微波無線電能傳輸系統中，利用改變饋入相位差控制波束指向，使能量的傳輸能夠追隨手機移動並對其充電。模擬結果顯示本研究所提出的想法有效提升充電過程中的自由度並且具有可行性。

The study is aimed to explore the feasibility of dynamic orientation wireless power transfer for personal-use spatial free-positioning charging, while applying microwave transmission, with its characteristic of narrow beam and beam control techniques, using phased array antennas as the transmitter of wireless power transmission system. The energy is more concentrated by using phased array antennas, and the direction of the main beam can be designated by varying the excitation phase. The transmitter achieves the result of tracking mobile phone location changing while charging by electron-beam control techniques. First, we analyze the effect of the radiation pattern by phase excitation using mathematical simulation software, for the proper antenna array arrangement. Second, we simulate our study aim with designing 5.8 GHz and 24.125 GHz microstrip antennas as array’s units by electromagnetic simulation software and building a 4x4 and a 8x8 array antenna. In conclusion, the results show the idea can increase the degree of freedom while charging and is feasible.

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