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Improved hybrid ring-based multi-frequency rectifier circuit

A technology of rectification circuit and hybrid ring, which is applied in the direction of irreversible AC power input conversion to DC power output, electrical components, output power conversion devices, etc. It can solve the problems of narrow operating frequency bandwidth, large rectenna size, and high integration difficulty. , to achieve the effects of suppressing harmonics, increasing output voltage, and improving integration

Active Publication Date: 2018-01-19
SYSU CMU SHUNDE INT JOINT RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the size of the traditional rectenna is large, the integration difficulty is high, the operating frequency bandwidth is narrow, and the conversion efficiency is low, and the use in many applications is greatly restricted.

Method used

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  • Improved hybrid ring-based multi-frequency rectifier circuit
  • Improved hybrid ring-based multi-frequency rectifier circuit
  • Improved hybrid ring-based multi-frequency rectifier circuit

Examples

Experimental program
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Embodiment 1

[0035] The structure and principle of the multi-frequency rectification circuit based on the improved hybrid ring are as follows: figure 1 , 2 As shown, the microstrip line with a characteristic impedance of 50 ohms is used as the signal input terminal, and the improved hybrid ring is connected to the low-frequency branch, the mid-frequency branch and the high-frequency branch. The three branches all include impedance matching networks , Voltage doubler rectification branch and harmonic suppression branch. The matching network of the three branches works in different frequency bands. After the RF energy passes through the input connector, the input end of the improved hybrid ring enters the hybrid ring. After the RF energy is shunted and matched, the three outputs of the improved hybrid ring The low-frequency branch rectifies a specific low-frequency band, the mid-frequency branch rectifies a specific mid-frequency band, and the high-frequency branch rectifies a specific high...

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PUM

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Abstract

The invention relates to an improved hybrid ring-based multi-frequency rectifier circuit, which comprises an input connector, an improved hybrid ring, a low-frequency branch, a middle-frequency branchand a high-frequency branch, wherein the input connector is connected with an input end of the improved hybrid ring; the low-frequency branch comprises a low-frequency impedance matching network, a low-frequency voltage-doubling rectifier branch and a low-frequency harmonic suppression branch; the middle-frequency branch comprises a middle-frequency impedance matching network, a middle-frequencyvoltage-doubling rectifier branch and a middle-frequency harmonic suppression branch; and the high-frequency branch comprises a high-frequency impedance matching network, a high-frequency voltage-doubling rectifier branch and a high-frequency harmonic suppression branch. Three output ends of the improved hybrid ring are connected with the low-frequency branch, the middle-frequency branch and the high-frequency branch separately; and the improved hybrid ring has matching and shunting functions.

Description

technical field [0001] The present invention relates to the field of wireless energy transmission, and more particularly relates to a multi-frequency rectification circuit based on an improved hybrid ring. Background technique [0002] Compared with traditional energy harvesting methods, RF energy harvesting technology has incomparable advantages in many application scenarios, such as wireless sensor networks, in-body medical equipment power supply and other low-power electronic device networking scenarios. [0003] In the field of wireless sensor networks, nodes can be powered by collecting energy scattered in the environment, such as wind energy, thermal energy, kinetic energy, solar energy, etc. Traditional energy collection is limited by geographical and climatic conditions and can only be used in specific areas. Practical application scenarios are constrained. Among various energy harvesting technologies, there is a wireless energy harvesting technology that collects e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/25H02M1/14
Inventor 谭洪舟黎梓宏曾淼旺路崇曾衍瀚
Owner SYSU CMU SHUNDE INT JOINT RES INST
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