A 5.8-GHz Phased Array System Using Power-Variable Phase-Controlled Magnetrons for Wireless Power Transfer
A 5.8-GHz Phased Array System Using Power-Variable Phase-Controlled Magnetrons for Wireless Power Transfer
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DOI：
10.1109/tmtt.2020.3007187
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发表时间：
2020-07
影响因子：
4.3
通讯作者：
Bo Yang;Xiaojie Chen;Jie Chu;T. Mitani;N. Shinohara
中科院分区：
文献类型：
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作者：
Bo Yang;Xiaojie Chen;Jie Chu;T. Mitani;N. Shinohara
采用注入锁定法和锁相环法，建立了四个功率可变相控磁控管的相控阵系统。为降低相控阵天线的成本，保证相控阵天线的耐久性，设计了一种波导缝隙阵列天线，并将其用于功率可变型PCM的输出天线。缝隙天线的预期偏转角为22.5°，增益为24.9 dBi，主瓣的半带宽为10°。我们展示了基于磁控管相控阵系统的微波波束形成和无线能量传输的特性。在水平方向上，通过调节磁控管输出相位，获得了±3°的束流扫描范围。当磁控管相控阵输出微波功率为1304 W时，在5 m距离处接收到的直流功率达到142 W。
We build a phased array system with four power-variable phase-controlled magnetrons (PCMs) by applying the injection-locking method and phase-locked-loop method. To reduce the cost and ensure the durability of the phased array, a waveguide slot array antenna was designed and used for the output antenna of power-variable PCMs. The slot antenna has an expected angle deflection of 22.5°, a gain of 24.9 dBi, and the half bandwidth of the main lobe was 10°. We demonstrated the properties of microwave beamforming and wireless power transfer based on the magnetron phased array system. In horizontal directions, a beam scanning range of ±3° was obtained by adjusting the output phase of the magnetrons. Furthermore, the received dc power reaches 142 W at a distance of 5 m when the output microwave power of the magnetron phased array is 1304 W.