IEICE Transactions on Electronics
Online ISSN : 1745-1353
Print ISSN : 0916-8524
Special Section on Microwave and Millimeter-Wave Technologies
Class-E Synchronous RF Rectifier: Circuit Formulation, Geodesic Trajectory, Time-Domain Simulation, and Prototype Experiment
Ryoya HONDAMinoru MIZUTANIMasaya TAMURATakashi OHIRA
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2023 年 E106.C 巻 11 号 p. 698-706

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This paper formulates a class-E synchronous RF rectifier from a new viewpoint. The key point is to introduce a matrix and convolute the DC terms into RF matrices. The explicit expression of input impedance is demonstrated in plane geometry. We find out their input impedance exhibits a geodesic arc in hyperbolic geometry under ZVS operation, where the theoretical RF-DC conversion efficiency results in 100%. We verify the developed theory both numerically (circuit simulation) and experimentally (6.78MHz, 100W). We confirm that the input impedance becomes a geodesic arc for a wide range of DC load resistance. The presented theory is quite elegant since it is based on a matrix-based formulation and plane-geometrical expression.

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© 2023 The Institute of Electronics, Information and Communication Engineers
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