Wide-power-range rectifier circuit adopting reflection power recovery network

Abstract

The invention discloses a wide-power-range rectifier circuit adopting a reflection power recovery network. The wide-power-range rectifier circuit includes an upper layer microstrip structure, an intermediate dielectric substrate and a bottom layer metal floor, the upper layer microstrip structure is printed on the upper surface of the intermediate dielectric substrate, the bottom layer metal floor is printed on the lower surface of the intermediate dielectric substrate, and the wide-power-range rectifier circuit is characterized in that the upper layer microstrip structure is formed by connecting a reflection power recovery network with a first rectifier branch II and a second rectifier branch III. When input power changes and thus causing impedance mismatch of the rectifier circuit, the adopted reflection power recovery network is in favor of collecting reflected waves generated by the two rectifier branches and transmitting back to the rectifier branches to be recycled, thereby improving rectification efficiency, and thus the operating power range of the rectifier circuit can be broadened.

Description

technical field [0001] The invention relates to a microwave rectifier circuit, in particular to a rectifier circuit with a wide power range using a reflection power recovery network. Background technique [0002] The idea of ​​wireless energy transfer has been around since the discovery of electricity. In the late 19th century, Nikola Tesla described the unparalleled importance to humans of freely transferring energy between two points without the need for a physical connection. It breaks the traditional way of propagating electric energy through cables, converts the energy into electromagnetic waves and emits them from the transmitting end, and spreads them to the receiving end in space, opening up a new way of energy transmission. On the one hand, wireless energy transfer can be used for space solar power (SSP) or solar satellite (SPS). On the other hand, wireless energy transfer can be used for contactless radio frequency identification, wireless charging of electric ve...

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Problems solved by technology

However, this approach requires the addition of control circuitry, which introduces additional circuit loss, size, and design complexity

In the literature "T.W.Barton, J.Gordonson, and D.J.Perreault, "Transmission line resistance compression networks and applications to wireless power transfer," IEEE J.Emerg.Sel.TopicsPower Electron.,vol.3,no.1,pp.252- 260, Mar. 2015. and S.H. Abdelhalem, P.S. Gudem, and L.E. Larson, “An RF-DC converter with wide-dynamic-range input matching for power recovery applications,” IEEE Trans. Circuits Syst. II, Exp. Briefs, vol.60, no.6, pp.336-340, Jun.2013." have introduced adaptive rectification circuits that can cover a wide input power range to obtain radio frequency energy, but the circuits designed in the above articles have low efficiency

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