Phase Synchronization Principle in 5.8 GHz Magnetron Phased Array

2023 24th International Vacuum Electronics Conference (IVEC), 25-28, April 2023, Chengdu, ChinaThis paper analyzes the influence parameters of the phase control of the magnetron in detail and proposes a method to realize the frequency locking and phase synchronization of the magnetron. The noise-inhibition of the magnetron has made great progress in previous research, and the power and phase can be simultaneously controlled. Based on this principle, the phases of multiple magnetrons are synchronized and successfully applied to phased arrays. A 2×2 5.8GHz magnetron phased array was constructed with a maximum output power of 1680W and the beam-forming experiment of the magnetron phased array was demonstrated for wireless power transfer

High-Power Simultaneous Wireless Information and Power Transfer System Based on an Injection-Locked Magnetron Phased Array

We built a phased array system for high-power simultaneous wireless information and power transfer (SWIPT) using four 5.8-GHz injection-locked magnetrons. In the magnetron injection-locked state, the transmission efficiency was measured at different modulation rates. The fluctuation in the transmission efficiency was not more than 0.5%. We observed that dynamic beamforming does not affect communication quality. Using the magnetron phased array system, SWIPT experiments revealed that a frequency modulated (FM) signal that carries a video camera signal is transmitted and decoded during dynamic beamforming. In this SWIPT system, the main lobe transfers power, and information can be demodulated in front of the magnetron phased array from −90° to 90°. The maximum transmitted microwave power of the proposed system is 1637 W

位相制御マグネトロンを用いた大電力マイクロ波無線電力伝送システム

京都大学0048新制・課程博士博士(工学)甲第22843号工博第4783号新制||工||1748(附属図書館)京都大学大学院工学研究科電気工学専攻(主査)教授 篠原 真毅, 教授 大村 善治, 准教授 後藤 康仁学位規則第4条第1項該当Doctor of Philosophy (Engineering)Kyoto UniversityDFA