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Electromagnetic energy collection structure integrating surface plasmon coupler and gradient-index planar lens

A gradient refractive index, plane lens technology, applied in electrical components, antennas, etc., can solve the problems of low space electromagnetic wave power density, difficult electromagnetic energy collection, etc., to achieve efficient electromagnetic energy collection, and improve the effect of input power

Inactive Publication Date: 2016-07-13
SHANGHAI UNIV
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  • Application Information

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Problems solved by technology

At present, the power density of electromagnetic waves in space is low, and it is difficult to achieve efficient electromagnetic energy collection

Method used

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  • Electromagnetic energy collection structure integrating surface plasmon coupler and gradient-index planar lens
  • Electromagnetic energy collection structure integrating surface plasmon coupler and gradient-index planar lens
  • Electromagnetic energy collection structure integrating surface plasmon coupler and gradient-index planar lens

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Embodiment

[0019] see figure 1 with figure 2 , an electromagnetic energy collection structure integrating a metasurface and a gradient index planar lens, including a dielectric substrate 1, a microstrip line 2, a planar lens body 3, a metasurface 4, and a ground plate 7; the microstrip line 2 is arranged on the On the upper surface of the dielectric substrate 1, the refractive index gradient of the planar lens body 3 gradually changes, and the phase gradient of the metasurface 4 gradually changes.

[0020] Further, the plane lens main body 3 is a main body unit structure matrix composed of more than one plane lens main unit structure 5; the main body unit structure matrix is ​​composed of a middle column and two side columns; the middle column is composed of more than one column in a vertical The symmetry axis is composed of a planar lens main unit structure 5 with the center of symmetry, and the size of each planar lens main unit structure 5 in the middle row takes the horizontal symm...

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Abstract

The invention discloses an electromagnetic energy collection structure integrating a super surface and a gradient-index planar lens, comprising a dielectric substrate, a micro-strip line, a planar lens body, and a super surface. The micro-strip line is arranged on the upper surface of the dielectric substrate, the refractive index gradient of the planar lens body changes gradually, and the phase gradient of the super surface changes gradually. The planar lens body is a body unit structure matrix composed of more than one planar lens body units, the sizes of the planar lens body unit structures in the middle column symmetrically and gradually decrease from the horizontal axis of symmetry as the center to the upper and lower sides, and the planar lens body unit structures in the columns at the two sides are of the same size. Spatial electromagnetic wave can be effectively converted into surface wave and energy can be concentrated, so that efficient energy collection is realized. The electromagnetic energy collection structure has a good application prospect in such fields as the Internet of things, radio frequency identification (RFID), wireless sensor network (WSN) and energy collection and recovery.

Description

technical field [0001] The invention relates to an electromagnetic energy collection structure, in particular to an electromagnetic energy collection device integrating a metasurface and a gradient refractive index plane lens, which belongs to the technical field of new artificial electromagnetic materials, energy collection and recovery, and is applied to the Internet of Things, radio frequency identification ( RFID) and wireless sensor networks (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, environmen...

Claims

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Application Information

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IPC IPC(8): H01Q15/00H01Q15/02
CPCH01Q15/00H01Q15/0086H01Q15/02
Inventor 周永金杨柳
Owner SHANGHAI UNIV
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