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Experimental Study on a 5.8 GHz Power-Variable Phase-Controlled Magnetron
Bo YANG Tomohiko MITANI Naoki SHINOHARA
IEICE TRANSACTIONS on Electronics
Publication Date: 2017/10/01
Online ISSN: 1745-1353
Type of Manuscript: Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technology)
5.8 GHz magnetron, phase locked loop, wireless power transfer, phased array,
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We developed a 5.8 GHz power-variable phase-controlled magnetron (PVPCM) which controls the phase of magnetron output by a phase shifter and controls the power by the anode current of the magnetron. This method is different from the previous 2.45 GHz phase-controlled magnetron which utilizes an injection method and a phase locked loop by the anode current, since the frequency of 5.8 GHz magnetron hardly changes with the anode current. Our experiments show that the developed 5.8 GHz PVPCM had a variable output power with 1% power stability from 160 W to 329 W, the phase accuracy was nearly ±1°, and the response time was less than 100 µs. Stable output power, high phase-controlled accuracy, and fast response speed microwave sources based on the PVPCMs are suitable for phased array system for wireless power transfer.