System and method for improving energy transmission efficiency based on energy distribution characteristic

A technology of energy transmission efficiency and energy distribution, applied in the microwave field, can solve the problems of low RF to DC energy conversion efficiency, high energy loss, uneven distribution, etc.

CN105119387AActive Publication Date: 2015-12-02XIAN INSTITUE OF SPACE RADIO TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-12-02

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Abstract

The invention discloses a system and a method for improving energy transmission efficiency based on energy distribution characteristics. Due to the non-uniformity of the energy distribution on the reception antenna end and the optimal matching state between the optimal efficiency and the input power of a rectification circuit , and on the basis of the energy distribution characteristics, various quantities of reception microstrip antenna units are adopted in various energy distribution areas to receive radio frequency signals and let the radio frequency signals to go into the rectification circuit directly or to go into the rectification circuit after power synthesis; the rectification circuit converts the radio frequency energy to DC energy after performing rectification processing on the radio frequency signal and lets the DC energy to go into a DC synthesis module; and the DC synthesis module obtains final output power after processing synthesis on the DC energy. The invention reduces connection loss between various members, realizes maximization reception of the radio frequency energy, finishes the maximization design of the rectification efficiency, and effectively improves the microwave wireless energy transmission efficiency of the system link.
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Description

technical field

[0001] The invention relates to a system and method for improving energy transmission efficiency based on energy distribution characteristics, and belongs to the field of microwave technology. Background technique

[0002] In the research process of microwave wireless energy transmission technology between module spacecraft, energy transmission efficiency is a key index to measure the excellent performance of the system. The microwave wireless energy transmission system mainly includes three parts: microwave transmitting component, microwave receiving component and space transmission. The specific circuit is composed of four subsystems: microwave transmitter, microwave transmitting antenna, microwave receiving antenna and microwave rectifying circuit. The design scheme is as follows: figure 1 shown.

[0003] The link efficiency of microwave wireless energy transmission system is mainly composed of three parts: DC to RF conversion efficiency, RF to DC convers...

Examples

Embodiment Construction

[0072] The following provides a specific embodiment of a microwave wireless energy transmission system for research on microwave wireless energy transmission technology.

[0073] Such as figure 1 As shown, a system for improving energy transmission efficiency based on energy distribution characteristics, including: power supply, microwave transmitter, transmitting antenna, receiving antenna, rectifier circuit, and DC synthesis module;

[0074] The receiving antenna includes a plurality of receiving antenna elements;

[0075] After the power supply supplies power to the microwave transmitter, the microwave transmitter generates radio frequency energy, forms a radio frequency signal and feeds it into the transmitting antenna, and transmits the radio frequency signal to the space through the transmitting antenna;

[0076] The aperture surface of the receiving antenna is divided into multiple sub-areas, and each sub-area is equipped with 4 receiving antenna units to receive radio...