Electromagnetic Energy Harvesting Structure Based on Corrugated Holographic Metasurface

A metasurface and holographic technology, applied in electrical components, antennas, etc., can solve the problems of reducing energy conversion efficiency and rectifying circuit efficiency, and achieve the effect of improving input power and high-efficiency electromagnetic energy harvesting devices

Active Publication Date: 2019-02-01
苏州泛摩微波技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of low micro-power input, the efficiency of the rectifier circuit will drop sharply (less than 10%), thereby reducing the energy conversion efficiency of the entire system

Method used

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  • Electromagnetic Energy Harvesting Structure Based on Corrugated Holographic Metasurface
  • Electromagnetic Energy Harvesting Structure Based on Corrugated Holographic Metasurface
  • Electromagnetic Energy Harvesting Structure Based on Corrugated Holographic Metasurface

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Embodiment 1

[0015] see figure 1 with figure 2 , an electromagnetic energy collection structure based on a corrugated holographic metasurface, comprising a dielectric substrate 1 and a microstrip line 2 on the dielectric substrate, a corrugated holographic metasurface body 3 and a formation 7 located under the dielectric substrate; the corrugated holographic metasurface The main body 3 is an elliptical surface, composed of more than one corrugated holographic metasurface main unit structure 4; the corrugated holographic metasurface main unit structure 4 is an array of arc strips, composed of more than one metal patch with a common center; The center of the metal patch arc strip array is connected to the microstrip line; the metal patch arc strip array is composed of more than one metal patch; the size of the metal patch is close to the microstrip line side gradually decreases toward the side away from the microstrip line; the gap of the metal patch gradually expands from the side close t...

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Abstract

The invention discloses a ripple holographic super-surface based electromagnetic energy collecting structure. The electromagnetic energy collecting structure comprises a dielectric substrate, a microstrip line on the dielectric substrate, and a ripple holographic super-surface body, wherein the ripple holographic super-surface body is an elliptical surface, and is an circular arc strip array formed by more than one ripple holographic super-surface body unit structure; the centre of a circle of each metal patch circular arc strip array is connected with the micro-strip wire; the metal patch circular arc strip array comprises more than one metal patch; the dimension of each metal patch is gradually decreased from one side close to the microstrip line to the side far from the microstrip line; and the gaps among the metal patches are gradually increased from one side close to the microstrip line to the side far from the microstrip line. According to the electromagnetic energy collecting structure, the space electromagnetic wave can be converted into surface wave efficiently to realize energy convergence so as to realize efficient energy collection; and the electromagnetic energy collecting structure is applied to the fields of the Internet of Things, the radio frequency identification (RFID), the wireless sensor network (WSN), energy collection and recycling and the like, and has bright application prospects.

Description

technical field [0001] The invention relates to an electromagnetic energy collection structure, in particular to an electromagnetic energy collection device based on corrugated holographic metasurfaces, which belongs to the field of new artificial electromagnetic materials, energy collection and recovery, and is applied to the Internet of Things, radio frequency identification (RFID) and wireless sensors Network (WSN) and other fields. Background technique [0002] As the two core technologies of the Internet of Things, radio frequency identification (RFID) and wireless sensor network (WSN) have attracted great attention from the international academic and business circles, and government departments of various countries are also actively promoting the development of the Internet of Things. Internet of things technologies such as WSN and RFID have penetrated into various fields: such as national defense security, space detection, environmental monitoring, etc. RFID and WSN ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q17/00
CPCH01Q17/00
Inventor 周永金张超
Owner 苏州泛摩微波技术有限公司
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