A high-efficiency rectifier circuit
A rectifier circuit, high-efficiency technology, applied in circuit devices, conversion of AC power input to DC power output, electrical components, etc., can solve the problems of limited frequency bandwidth, low circuit efficiency, etc., to reduce losses, improve matching performance, reduce the effect of loss
Inactive Publication Date: 2018-01-16
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
However, the circuits introduced in the above-mentioned related research articles generally have low efficiency and limited frequency bandwidth.
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[0041] Such as figure 1 As shown, a high-efficiency rectifier circuit is characterized in that it includes an upper microstrip structure, an intermediate dielectric substrate and a bottom metal floor, the upper microstrip structure is printed on the upper surface of the intermediate dielectric substrate, and the bottom metal floor is printed Made on the lower surface of the intermediate dielectric substrate, the upper microstrip structure is composed of a two-section branch line coupler I, a first sub-rectification circuit II and a second sub-rectification circuit III, and the two-section branch line coupler passes through the second Nine microstrip lines 9 are connected to the first sub-rectification circuit II, and the two-section branch line coupler is connected to the second sub-rectification circuit III through the twenty-second microstrip line 22, and the isolation ends of the two-section branch line coupler pass through Metalized vias connect to the underlying metal flo...
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The invention discloses a high-efficiency rectification circuit. The high-efficiency rectification circuit comprises an upper layer microstrip structure, an intermediate medium substrate, and a bottom layer metal floor, the upper layer microstrip structure is printed on the upper surface of the intermediate medium substrate, and the bottom layer metal floor is printed on the lower surface of the intermediate medium substrate. The high-efficiency rectification circuit is characterized in that the upper layer microstrip structure is formed by a two-segment branch line coupler, a first sub-rectification circuit, and a second sub-rectification circuit, one isolation terminal of the two-segment branch line coupler is connected to the ground, and the two-segment branch line coupler is connected with the first sub-rectification circuit and the second sub-rectification circuit. According to the high-efficiency rectification circuit, the two-segment branch line coupler whose isolation terminal is connected to the ground is employed to re-inject a part of reflection waves generated by the two sub-rectification circuits due to impedance mismatch to the sub-rectification circuits for utilization, the rectification efficiency of the whole circuit is improved, better match between the whole rectification circuit and an antenna is realized, and the energy loss of the system is reduced.
Description
technical field [0001] The invention relates to a microwave rectification circuit, in particular to a high-efficiency rectification circuit. Background technique [0002] Wireless energy transmission is a promising technology. When traditional wired energy transmission is inconvenient or impossible, wireless energy transmission can play a very good role. In recent years, battery-operated electronic devices, including various wireless sensors, have achieved great success. However, the need for wired charging of traditional batteries limits their use in applications such as pacemakers in the human body, sensors fixed in bridges or scattered throughout forests. The advent of infinite energy transfer systems has made these electronic devices more efficient, reliable and easy to use. [0003] For the infinite energy transmission system, the rectifier circuit is an important part. The energy transmission efficiency of the entire system largely depends on the efficiency of the r...
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IPC IPC(8): H02J50/00H02J50/27H02M7/00
CPCH02M7/003
Inventor 章秀银杜志侠李斌赵小兰
Owner SOUTH CHINA UNIV OF TECH